©2012 Burke Museum of Natural History and Culture.
All Rights Reserved. Box 353010, University of Washington,
Seattle, WA 98195-3010, Phone: 206-543-5590.
On the UW campus at 17th Avenue NE and NE 45th Street.
WA Native Plant Society
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901 Un-photographed Species and Hybrids The Image Collection web site is in need of photographs for the following species and hybrids. Please browse through this list and, if you have photographs of any of these species, consider letting us use them on the web site. Or, keep this list and a camera handy as you are out botanizing. For more information, see the contributor's page, or send an email to the Collections Manager (dgiblin@u.washington.edu). Names are sorted first by family, second by accepted scientific name. The name used in Hitchock & Cronquist's Flora of the Pacific Northwest is shown in the right column. Some of the taxa on this list are doubtfully present in Washington. See also: Un-photographed subspecies and varieties |
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| # | Family | Scientific Name | Name used in H&C |
| 1 | Acoraceae | Acorus calamus | (not treated in H&C) |
| 2 | Alismataceae | Alisma plantago-aquatica | Alisma plantago-aquatica var. plantago-aquatica |
| 3 | Alismataceae | Baldellia ranunculoides | Echinodorus ranunculoides |
| 4 | Alismataceae | Sagittaria subulata | Sagittaria subulata var. gracillima |
| 5 | Amaranthaceae | Amaranthus californicus | Amaranthus californicus |
| 6 | Amaranthaceae | Amaranthus cruentus | (not treated in H&C) |
| 7 | Amaranthaceae | Amaranthus rudis | (not treated in H&C) |
| 8 | Apiaceae | Angelica canbyi | Angelica canbyi |
| 9 | Apiaceae | Angelica tomentosa | ? |
| 10 | Apiaceae | Apium prostratum | (not treated in H&C) |
| 11 | Apiaceae | Carum carvi | Carum carvi |
| 12 | Apiaceae | Eryngium articulatum | Eryngium articulatum |
| 13 | Apiaceae | Ligusticum tenuifolium | Ligusticum tenuifolium |
| 14 | Apiaceae | Lomatium cusickii | Lomatium cusickii |
| 15 | Apiaceae | Lomatium donnellii | Lomatium donnellii |
| 16 | Apiaceae | Lomatium hallii | Lomatium hallii |
| 17 | Apiaceae | Lomatium orientale | (not treated in H&C) |
| 18 | Apiaceae | Lomatium thompsonii | Lomatium thompsonii |
| 19 | Apiaceae | Osmorhiza berteroi | Osmorhiza chilensis |
| 20 | Apiaceae | Osmorhiza depauperata | Osmorhiza depauperata |
| 21 | Apiaceae | Perideridia bolanderi | Perideridia bolanderi |
| 22 | Apiaceae | Pimpinella saxifraga | Pimpinella saxifraga |
| 23 | Apiaceae | Tauschia tenuissima | Lomatium orogenioides |
| 24 | Apocynaceae | Apocynum X floribundum | Apocynum medium |
| 25 | Asteraceae | Agoseris apargioides | Agoseris apargioides |
| 26 | Asteraceae | Agoseris retrorsa | Agoseris retrorsa |
| 27 | Asteraceae | Antennaria corymbosa | Antennaria corymbosa |
| 28 | Asteraceae | Antennaria geyeri | Antennaria geyeri |
| 29 | Asteraceae | Antennaria pulcherrima | Antennaria pulcherrima |
| 30 | Asteraceae | Anthemis austriaca | (not treated in H&C) |
| 31 | Asteraceae | Anthemis tinctoria | Anthemis tinctoria |
| 32 | Asteraceae | Arctium lappa | Arctium lappa |
| 33 | Asteraceae | Arnica amplexicaulis | Arnica amplexicaulis vars. amplexicaulis, piperi |
| 34 | Asteraceae | Arnica X diversifolia | Arnica diversifolia |
| 35 | Asteraceae | Artemisia lindleyana | Artemisia lindleyana |
| 36 | Asteraceae | Artemisia stelleriana | ? |
| 37 | Asteraceae | Artemisia tripartita | Artemisia tripartita |
| 38 | Asteraceae | Balsamita major | Chrysanthemum balsamita |
| 39 | Asteraceae | Balsamorhiza careyana var. intermedia X hookeri var. lagocephala | (not treated in H&C) |
| 40 | Asteraceae | Balsamorhiza hookeri var. lagocephala X sagittata | (not treated in H&C) |
| 41 | Asteraceae | Balsamorhiza X bonseri | (not treated in H&C) |
| 42 | Asteraceae | Balsamorhiza X terebinthacea | (not treated in H&C) |
| 43 | Asteraceae | Balsamorhiza X tomentosa | (not treated in H&C) |
| 44 | Asteraceae | Brickellia microphylla | Brickellia microphylla |
| 45 | Asteraceae | Centaurea biebersteinii | Centaurea maculosa |
| 46 | Asteraceae | Centaurea calcitrapa | Centaurea calcitrapa |
| 47 | Asteraceae | Centaurea debeauxii | (not treated in H&C) |
| 48 | Asteraceae | Centaurea iberica | (not treated in H&C) |
| 49 | Asteraceae | Centaurea jacea | Centaurea jacea |
| 50 | Asteraceae | Centaurea trichocephala | (not treated in H&C) |
| 51 | Asteraceae | Cirsium remotifolium | Cirsium callilepis var. oregonense, Cirsium remotifolium |
| 52 | Asteraceae | Cnicus benedictus | Cnicus benedictus |
| 53 | Asteraceae | Crepis nicaeensis | Crepis nicaeensis |
| 54 | Asteraceae | Crepis runcinata | Crepis runcinata |
| 55 | Asteraceae | Echinops exaltatus | (not treated in H&C) |
| 56 | Asteraceae | Echinops sphaerocephalus | Echinops ruthenicus |
| 57 | Asteraceae | Erechtites glomerata | Erechtites arguta |
| 58 | Asteraceae | Erechtites hieraciifolia | Erechtites hieracifolia |
| 59 | Asteraceae | Ericameria nana | Haplopappus nanus |
| 60 | Asteraceae | Erigeron divergens | Erigeron divergens |
| 61 | Asteraceae | Erigeron elatus | Erigeron acris var. elatus |
| 62 | Asteraceae | Erigeron inornatus | Erigeron inornatus |
| 63 | Asteraceae | Eucephalus glaucescens | Aster glaucescens |
| 64 | Asteraceae | Eupatorium maculatum | Eupatorium maculatum |
| 65 | Asteraceae | Eurybia merita | Aster sibiricus var. meritus |
| 66 | Asteraceae | Euthamia graminifolia | Solidago graminifolia |
| 67 | Asteraceae | Gamochaeta purpurea | Gnaphalium purpureum var. purpureum |
| 68 | Asteraceae | Grindelia columbiana | Grindelia columbiana |
| 69 | Asteraceae | Grindelia nana | Grindelia nana |
| 70 | Asteraceae | Helianthus grosseserratus | Helianthus grosseserratus |
| 71 | Asteraceae | Helianthus petiolaris | Helianthus petiolaris |
| 72 | Asteraceae | Heliopsis helianthoides | Heliopsis helianthoides |
| 73 | Asteraceae | Hemizonia pungens | Hemizonia pungens |
| 74 | Asteraceae | Heterotheca barbata | (not treated in H&C) |
| 75 | Asteraceae | Hieracium cynoglossoides | Hieracium albertinum, Hieracium cynoglossoides |
| 76 | Asteraceae | Hieracium gracile | Hieracium gracile |
| 77 | Asteraceae | Hieracium piloselloides | Hieracium pilosella |
| 78 | Asteraceae | Hieracium X floribundum | (not treated in H&C) |
| 79 | Asteraceae | Iva xanthifolia | Iva xanthifolia |
| 80 | Asteraceae | Lactuca ludoviciana | Lactuca ludoviciana |
| 81 | Asteraceae | Lactuca tatarica | (not treated in H&C) |
| 82 | Asteraceae | Lasthenia minor | Lasthenia minor |
| 83 | Asteraceae | Leontodon autumnalis | Leontodon autumnalis |
| 84 | Asteraceae | Leontodon hirtus | Leontodon nudicaulis |
| 85 | Asteraceae | Leontodon taraxacoides | Leontodon nudicaulis ssp. taraxacoides |
| 86 | Asteraceae | Machaeranthera canescens | Machaeranthera canescens |
| 87 | Asteraceae | Madia madioides | Madia madioides |
| 88 | Asteraceae | Madia minima | Madia minima |
| 89 | Asteraceae | Matricaria recutita | Matricaria chamomilla |
| 90 | Asteraceae | Megalodonta beckii | Bidens beckii |
| 91 | Asteraceae | Microseris bigelovii | Microseris bigelovii |
| 92 | Asteraceae | Packera buekii | Senecio cymbalarioides |
| 93 | Asteraceae | Petasites hybridus | (not treated in H&C) |
| 94 | Asteraceae | Picris echioides | ? |
| 95 | Asteraceae | Picris hieracioides | ? |
| 96 | Asteraceae | Pseudognaphalium californicum | Gnaphalium californicum |
| 97 | Asteraceae | Pseudognaphalium macounii | Gnaphalium viscosum |
| 98 | Asteraceae | Rudbeckia alpicola | Rudbeckia occidentalis var. alpicola |
| 99 | Asteraceae | Solidago canadensis | Solidago canadensis |
| 100 | Asteraceae | Solidago gigantea | Solidago gigantea var. serotina |
| 101 | Asteraceae | Stenotus stenophyllus | Haplopappus stenophyllus |
| 102 | Asteraceae | Stephanomeria minor | Stephanomeria tenuifolia |
| 103 | Asteraceae | Symphyotrichum campestre | Aster campestris |
| 104 | Asteraceae | Symphyotrichum falcatum | ? |
| 105 | Asteraceae | Symphyotrichum X amethystinum | (not treated in H&C) |
| 106 | Asteraceae | Symphyotrichum X columbianum | (not treated in H&C) |
| 107 | Asteraceae | Tanacetum camphoratum | Tanacetum douglasii |
| 108 | Asteraceae | Taraxacum eriophorum | Taraxacum eriophorum |
| 109 | Asteraceae | Taraxacum laevigatum | Taraxacum laevigatum |
| 110 | Asteraceae | Taraxacum lyratum | Taraxacum lyratum |
| 111 | Asteraceae | Townsendia florifera | Townsendia florifer |
| 112 | Asteraceae | Tragopogon miscellus | Tragopogon miscellus |
| 113 | Asteraceae | Tripleurospermum perforata | Matricaria maritima |
| 114 | Asteraceae | Xanthium spinosum | Xanthium spinosum |
| 115 | Balsaminaceae | Impatiens X pacifica | (not treated in H&C) |
| 116 | Berberidaceae | Mahonia aquifolium | Berberis aquifolium |
| 117 | Berberidaceae | Mahonia repens | Berberis repens |
| 118 | Betulaceae | Betula nana | Betula glandulosa vars. |
| 119 | Betulaceae | Betula pumila | (not treated in H&C) |
| 120 | Betulaceae | Betula X utahensis | Betula papyrifera var. subcordata, Betula piperi |
| 121 | Boraginaceae | Amsinckia spectabilis | Amsinckia spectabilis |
| 122 | Boraginaceae | Buglossoides arvensis | Lithospermum arvense |
| 123 | Boraginaceae | Cryptantha fendleri | Cryptantha fendleri |
| 124 | Boraginaceae | Cryptantha simulans | Cryptantha simulans |
| 125 | Boraginaceae | Hackelia deflexa | Hackelia deflexa |
| 126 | Boraginaceae | Lappula occidentalis | Lappula redowskii |
| 127 | Boraginaceae | Myosotis arvensis | Myosotis arvensis |
| 128 | Boraginaceae | Myosotis azorica | (not treated in H&C) |
| 129 | Boraginaceae | Myosotis verna | Myosotis verna |
| 130 | Boraginaceae | Symphytum X uplandicum | (not treated in H&C) |
| 131 | Brassicaceae | Arabis cusickii | Arabis cusickii |
| 132 | Brassicaceae | Arabis eschscholtziana | Arabis hirsuta var. eschscholtziana |
| 133 | Brassicaceae | Arabis furcata | Arabis furcata |
| 134 | Brassicaceae | Arabis glabra | Arabis glabra |
| 135 | Brassicaceae | Arabis holboellii | Arabis holboellii |
| 136 | Brassicaceae | Arabis kamchatica | Arabis lyrata var. kamchatica |
| 137 | Brassicaceae | Arabis lemmonii | Arabis lemmonii |
| 138 | Brassicaceae | Arabis murrayi | (not treated in H&C) |
| 139 | Brassicaceae | Arabis nuttallii | Arabis nuttallii |
| 140 | Brassicaceae | Arabis puberula | Arabis puberula |
| 141 | Brassicaceae | Arabis sparsiflora | Arabis sparsiflora |
| 142 | Brassicaceae | Arabis X divaricarpa | Arabis divaricarpa |
| 143 | Brassicaceae | Barbarea verna | Barbarea verna |
| 144 | Brassicaceae | Brassica juncea | Brassica juncea |
| 145 | Brassicaceae | Camelina sativa | Camelina sativa |
| 146 | Brassicaceae | Cardamine occidentalis | Cardamine occidentalis |
| 147 | Brassicaceae | Cheiranthus cheiri | (not treated in H&C) |
| 148 | Brassicaceae | Cochlearia groenlandica | Cochlearia officinalis |
| 149 | Brassicaceae | Descurainia incana | ? |
| 150 | Brassicaceae | Draba albertina | Draba stenoloba var. nana |
| 151 | Brassicaceae | Draba aurea | Draba aurea |
| 152 | Brassicaceae | Draba aureola | Draba aureola |
| 153 | Brassicaceae | Draba borealis | ? |
| 154 | Brassicaceae | Draba breweri | ? |
| 155 | Brassicaceae | Draba crassifolia | Draba crassifolia |
| 156 | Brassicaceae | Draba juvenilis | ? |
| 157 | Brassicaceae | Draba lonchocarpa | Draba lonchocarpa |
| 158 | Brassicaceae | Draba nemorosa | Draba nemorosa |
| 159 | Brassicaceae | Draba platycarpa | Draba cuneifolia var. platycarpa |
| 160 | Brassicaceae | Draba praealta | Draba praealta |
| 161 | Brassicaceae | Draba reptans | Draba reptans vars. reptans, stellifera |
| 162 | Brassicaceae | Draba ruaxes | Draba ventosa var. ruaxes |
| 163 | Brassicaceae | Draba stenoloba | Draba stenoloba |
| 164 | Brassicaceae | Erysimum cheiranthoides | Erysimum cheiranthoides |
| 165 | Brassicaceae | Erysimum inconspicuum | Erysimum inconspicuum |
| 166 | Brassicaceae | Guillenia lasiophylla | Thelypodium lasiophyllum |
| 167 | Brassicaceae | Halimolobos whitedii | Halimolobos whitedii |
| 168 | Brassicaceae | Hutchinsia procumbens | Hutchinsia procumbens |
| 169 | Brassicaceae | Lepidium dictyotum | Lepidium dictyotum |
| 170 | Brassicaceae | Lepidium ruderale | Lepidium ruderale |
| 171 | Brassicaceae | Lepidium sativum | Lepidium sativum |
| 172 | Brassicaceae | Lesquerella occidentalis | Lesquerella occidentalis |
| 173 | Brassicaceae | Lesquerella tuplashensis | (not treated in H&C) |
| 174 | Brassicaceae | Malcolmia africana | Malcolmia africana |
| 175 | Brassicaceae | Neslia paniculata | Neslia paniculata |
| 176 | Brassicaceae | Physaria didymocarpa | Physaria didymocarpa |
| 177 | Brassicaceae | Rorippa nasturtium-aquaticum | Rorippa nasturtium-aquaticum |
| 178 | Brassicaceae | Rorippa sinuata | Rorippa sinuata |
| 179 | Brassicaceae | Rorippa sylvestris | Rorippa sylvestris |
| 180 | Brassicaceae | Rorippa tenerrima | (not treated in H&C) |
| 181 | Brassicaceae | Schoenocrambe linifolia | Schoenocrambe linifolia |
| 182 | Brassicaceae | Thelypodium howellii | Thelypodium howellii |
| 183 | Brassicaceae | Thelypodium sagittatum | Thelypodium sagittatum |
| 184 | Cactaceae | Opuntia polyacantha | Opuntia polyacantha |
| 185 | Cactaceae | Opuntia X columbiana | Opuntia polyacantha |
| 186 | Calycanthaceae | Calycanthus occidentalis | (not treated in H&C) |
| 187 | Campanulaceae | Campanula aparinoides | (not treated in H&C) |
| 188 | Campanulaceae | Lobelia kalmii | Lobelia kalmii |
| 189 | Capparaceae | Cleome serrulata | Cleome serrulata |
| 190 | Capparaceae | Polanisia dodecandra | Polanisia trachysperma |
| 191 | Caprifoliaceae | Sambucus nigra | Sambucus cerulea |
| 192 | Caprifoliaceae | Symphoricarpos hesperius | Symphoricarpos mollis var. hesperius |
| 193 | Caryophyllaceae | Arenaria aculeata | Arenaria aculeata |
| 194 | Caryophyllaceae | Arenaria capillaris | Arenaria capillaris |
| 195 | Caryophyllaceae | Arenaria congesta | Arenaria congesta |
| 196 | Caryophyllaceae | Arenaria franklinii | Arenaria franklinii |
| 197 | Caryophyllaceae | Arenaria paludicola | Arenaria paludicola |
| 198 | Caryophyllaceae | Cardionema ramosissimum | Cardionema ramosissima |
| 199 | Caryophyllaceae | Cerastium brachypodum | (not treated in H&C) |
| 200 | Caryophyllaceae | Cerastium dubium | Cerastium dubium |
| 201 | Caryophyllaceae | Cerastium siculum | Cerastium siculum |
| 202 | Caryophyllaceae | Dianthus deltoides | Dianthus deltoides |
| 203 | Caryophyllaceae | Herniaria hirsuta | (not treated in H&C) |
| 204 | Caryophyllaceae | Loeflingia squarrosa | Loeflingia squarrosa |
| 205 | Caryophyllaceae | Lychnis coronaria | Lychnis coronaria |
| 206 | Caryophyllaceae | Lychnis flos-cuculi | (not treated in H&C) |
| 207 | Caryophyllaceae | Minuartia elegans | Arenaria rossii var. apetala |
| 208 | Caryophyllaceae | Minuartia michauxii | (not treated in H&C) |
| 209 | Caryophyllaceae | Minuartia pusilla | Arenaria pusilla |
| 210 | Caryophyllaceae | Silene conica | Silene conica |
| 211 | Caryophyllaceae | Silene conoidea | Silene conoidea |
| 212 | Caryophyllaceae | Silene dichotoma | Silene dichotoma |
| 213 | Caryophyllaceae | Silene dioica | Lychnis dioica |
| 214 | Caryophyllaceae | Silene multinervia | ? |
| 215 | Caryophyllaceae | Spergularia diandra | Spergularia diandra |
| 216 | Caryophyllaceae | Stellaria alsine | Stellaria alsine |
| 217 | Caryophyllaceae | Stellaria longifolia | Stellaria longifolia |
| 218 | Caryophyllaceae | Stellaria umbellata | Stellaria umbellata |
| 219 | Ceratophyllaceae | Ceratophyllum echinatum | (not treated in H&C) |
| 220 | Chenopodiaceae | Atriplex argentea | Atriplex argentea |
| 221 | Chenopodiaceae | Atriplex falcata | Atriplex nuttallii var. falcata |
| 222 | Chenopodiaceae | Atriplex hortensis | Atriplex hortensis |
| 223 | Chenopodiaceae | Atriplex littoralis | Atriplex patula var. littoralis |
| 224 | Chenopodiaceae | Atriplex micrantha | Atriplex heterosperma |
| 225 | Chenopodiaceae | Atriplex oblongifolia | ? |
| 226 | Chenopodiaceae | Atriplex subspicata | ? |
| 227 | Chenopodiaceae | Atriplex truncata | Atriplex truncata |
| 228 | Chenopodiaceae | Bassia scoparia | Kochia scoparia |
| 229 | Chenopodiaceae | Chenopodium ambrosioides | Chenopodium ambrosioides |
| 230 | Chenopodiaceae | Chenopodium atrovirens | Chenopodium fremontii var. atrovirens |
| 231 | Chenopodiaceae | Chenopodium botrys | Chenopodium botrys |
| 232 | Chenopodiaceae | Chenopodium chenopodioides | Chenopodium chenopodioides |
| 233 | Chenopodiaceae | Chenopodium foliosum | Chenopodium foliosum |
| 234 | Chenopodiaceae | Chenopodium fremontii | Chenopodium fremontii |
| 235 | Chenopodiaceae | Chenopodium hians | (not treated in H&C) |
| 236 | Chenopodiaceae | Chenopodium humile | (not treated in H&C) |
| 237 | Chenopodiaceae | Chenopodium pratericola | (not treated in H&C) |
| 238 | Chenopodiaceae | Chenopodium pumilio | Chenopodium pumilio |
| 239 | Chenopodiaceae | Chenopodium salinum | (not treated in H&C) |
| 240 | Chenopodiaceae | Chenopodium subglabrum | Chenopodium leptophyllum var. subglabrum |
| 241 | Chenopodiaceae | Chenopodium urbicum | Chenopodium urbicum |
| 242 | Chenopodiaceae | Corispermum americanum | Corispermum hyssopifolium, in part |
| 243 | Chenopodiaceae | Corispermum pallidum | ? |
| 244 | Chenopodiaceae | Monolepis pusilla | Monolepsis pusilla |
| 245 | Chenopodiaceae | Salicornia maritima | Salicornia europaea |
| 246 | Chenopodiaceae | Salicornia rubra | Salicornia rubra |
| 247 | Chenopodiaceae | Spinacia oleracea | (not treated in H&C) |
| 248 | Chenopodiaceae | Suaeda calceoliformis | Suaeda depressa, Suaeda occidentalis |
| 249 | Chenopodiaceae | Suaeda maritima | Suaeda maritima |
| 250 | Chenopodiaceae | Suaeda moquinii | Suaeda intermedia, Suaeda nigra |
| 251 | Clusiaceae | Hypericum androsaemum | (not treated in H&C) |
| 252 | Convolvulaceae | Calystegia atriplicifolia | ? |
| 253 | Convolvulaceae | Calystegia sepium | Convolvulus sepium |
| 254 | Convolvulaceae | Calystegia soldanella | Convolvulus soldanella |
| 255 | Cornaceae | Cornus canadensis | Cornus canadensis |
| 256 | Crassulaceae | Crassula saginoides | (not treated in H&C) |
| 257 | Crossosomataceae | Glossopetalon spinescens | ? |
| 258 | Cupressaceae | Chamaecyparis nootkatensis | Chamaecyparis nootkatensis |
| 259 | Cuscutaceae | Cuscuta approximata | Cuscuta approximata |
| 260 | Cuscutaceae | Cuscuta cephalanthi | Cuscuta cephalanthi |
| 261 | Cuscutaceae | Cuscuta epilinum | ? |
| 262 | Cuscutaceae | Cuscuta epithymum | Cuscuta epithymum |
| 263 | Cuscutaceae | Cuscuta plattensis | ? |
| 264 | Cyperaceae | Carex aperta | Carex aperta |
| 265 | Cyperaceae | Carex atrosquama | Carex atrata var. atrosquama |
| 266 | Cyperaceae | Carex backii | Carex backii |
| 267 | Cyperaceae | Carex bolanderi | Carex deweyana, in part |
| 268 | Cyperaceae | Carex brevicaulis | Carex brevicaulis |
| 269 | Cyperaceae | Carex brevior | Carex brevior |
| 270 | Cyperaceae | Carex californica | Carex californica |
| 271 | Cyperaceae | Carex circinata | Carex circinata |
| 272 | Cyperaceae | Carex constanceana | Carex petasata |
| 273 | Cyperaceae | Carex crawei | Carex crawei |
| 274 | Cyperaceae | Carex crawfordii | Carex crawfordii |
| 275 | Cyperaceae | Carex deflexa | ? |
| 276 | Cyperaceae | Carex duriuscula | Carex stenophylla |
| 277 | Cyperaceae | Carex engelmannii | Carex breweri var. paddoensis |
| 278 | Cyperaceae | Carex epapillosa | Carex atrata var. erecta |
| 279 | Cyperaceae | Carex filifolia | Carex filifolia |
| 280 | Cyperaceae | Carex garberi | ? |
| 281 | Cyperaceae | Carex halliana | Carex halliana |
| 282 | Cyperaceae | Carex haydeniana | Carex haydeniana |
| 283 | Cyperaceae | Carex integra | Carex integra |
| 284 | Cyperaceae | Carex lachenalii | Carex bipartita |
| 285 | Cyperaceae | Carex lapponica | ? |
| 286 | Cyperaceae | Carex leporinella | Carex leporinella |
| 287 | Cyperaceae | Carex leptopoda | Carex deweyana, in part |
| 288 | Cyperaceae | Carex livida | Carex livida |
| 289 | Cyperaceae | Carex longii | ? |
| 290 | Cyperaceae | Carex multicostata | Carex multicostata |
| 291 | Cyperaceae | Carex neurophora | Carex neurophora |
| 292 | Cyperaceae | Carex norvegica | Carex norvegica |
| 293 | Cyperaceae | Carex ovalis | Carex leporina |
| 294 | Cyperaceae | Carex paysonis | Carex paysonis |
| 295 | Cyperaceae | Carex pellita | Carex lanuginosa |
| 296 | Cyperaceae | Carex phaeocephala | Carex phaeocephala |
| 297 | Cyperaceae | Carex piperi | ? |
| 298 | Cyperaceae | Carex podocarpa | ? |
| 299 | Cyperaceae | Carex praeceptorium | Carex praeceptorum |
| 300 | Cyperaceae | Carex praticola | Carex praticola |
| 301 | Cyperaceae | Carex preslii | ? |
| 302 | Cyperaceae | Carex pyrenaica | Carex pyrenaica |
| 303 | Cyperaceae | Carex saximontana | ? |
| 304 | Cyperaceae | Carex scoparia | Carex scoparia |
| 305 | Cyperaceae | Carex sheldonii | Carex sheldonii |
| 306 | Cyperaceae | Carex siccata | Carex aenea, Carex siccata |
| 307 | Cyperaceae | Carex straminiformis | Carex straminiformis |
| 308 | Cyperaceae | Carex subfusca | Carex subfusca |
| 309 | Cyperaceae | Carex tahoensis | ? |
| 310 | Cyperaceae | Carex tumulicola | Carex tumulicola |
| 311 | Cyperaceae | Carex vallicola | Carex vallicola |
| 312 | Cyperaceae | Carex vernacula | Carex foetida var. vernacula |
| 313 | Cyperaceae | Carex X physocarpioides | Carex saxatilis var. major |
| 314 | Cyperaceae | Cyperus acuminatus | Cyperus acuminatus |
| 315 | Cyperaceae | Cyperus schweinitzii | Cyperus schweinitzii |
| 316 | Cyperaceae | Eleocharis atropurpurea | Eleocharis atropurpurea |
| 317 | Cyperaceae | Eleocharis bella | Eleocharis bella |
| 318 | Cyperaceae | Eleocharis elliptica | ? |
| 319 | Cyperaceae | Eleocharis engelmannii | ? |
| 320 | Cyperaceae | Eleocharis macrostachya | ? |
| 321 | Cyperaceae | Eleocharis mamillata | ? |
| 322 | Cyperaceae | Eleocharis rostellata | Eleocharis rostellata |
| 323 | Cyperaceae | Eleocharis suksdorfiana | ? |
| 324 | Cyperaceae | Eleocharis uniglumis | ? |
| 325 | Cyperaceae | Eriophorum viridicarinatum | Eriophorum viridicarinatum |
| 326 | Cyperaceae | Isolepis setacea | ? |
| 327 | Cyperaceae | Kobresia myosuroides | Kobresia myosuroides |
| 328 | Cyperaceae | Lipocarpha aristulata | ? |
| 329 | Cyperaceae | Lipocarpha micrantha | Hemicarpha micrantha |
| 330 | Cyperaceae | Lipocarpha occidentalis | Hemicarpha occidentalis |
| 331 | Cyperaceae | Schoenoplectus americanus | Scirpus americanus, Scirpus olneyi |
| 332 | Cyperaceae | Schoenoplectus fluviatilis | Scirpus fluviatilis |
| 333 | Cyperaceae | Schoenoplectus maritimus | Scirpus maritimus var. paludosus |
| 334 | Cyperaceae | Schoenoplectus X kuekenthalianus | (not treated in H&C) |
| 335 | Cyperaceae | Scirpus atrovirens | ? |
| 336 | Cyperaceae | Scirpus nevadensis | Scirpus nevadensis |
| 337 | Cyperaceae | Trichophorum caespitosum | Scirpus cespitosus |
| 338 | Droseraceae | Drosera X obovata | (not treated in H&C) |
| 339 | Dryopteridaceae | Athyrium americanum | Athyrium distentifolium var. americanum |
| 340 | Dryopteridaceae | Gymnocarpium X brittonianum | Gymnocarpium dryopteris, in part |
| 341 | Elatinaceae | Elatine brachysperma | Elatine brachysperma |
| 342 | Elatinaceae | Elatine californica | Elatine californica |
| 343 | Elatinaceae | Elatine rubella | Elatine triandra |
| 344 | Equisetaceae | Equisetum laevigatum | Equisetum laevigatum |
| 345 | Equisetaceae | Equisetum X ferrissii | (not treated in H&C) |
| 346 | Equisetaceae | Equisetum X litorale | (not treated in H&C) |
| 347 | Equisetaceae | Equisetum X mackaii | (not treated in H&C) |
| 348 | Ericaceae | Arctostaphylos X media | Arctostaphylos media |
| 349 | Ericaceae | Elliottia pyroliflorus | Cladothamnus pyroliflorus |
| 350 | Ericaceae | Ledum groenlandicum | Ledum groenlandicum |
| 351 | Ericaceae | Ledum X columbianum | Ledum glandulosum var. columbianum |
| 352 | Ericaceae | Loiseleuria procumbens | Loiseleuria procumbens |
| 353 | Ericaceae | Phyllodoce X intermedia | Phyllodoce X intermedia |
| 354 | Euphorbiaceae | Chamaesyce glyptosperma | Euphorbia glyptosperma |
| 355 | Euphorbiaceae | Chamaesyce maculata | Euphorbia maculata, Euphorbia supina |
| 356 | Euphorbiaceae | Chamaesyce serpyllifolia | Euphorbia serpyllifolia |
| 357 | Euphorbiaceae | Croton setigerus | Eremocarpus setigerus |
| 358 | Euphorbiaceae | Euphorbia esula | Euphorbia esula |
| 359 | Euphorbiaceae | Euphorbia oblongata | (not treated in H&C) |
| 360 | Euphorbiaceae | Euphorbia spathulata | Euphorbia spathulata |
| 361 | Fabaceae | Astragalus arrectus | Astragalus arrectus |
| 362 | Fabaceae | Astragalus beckwithii | Astragalus beckwithii |
| 363 | Fabaceae | Astragalus falcatus | Astragalus falcatus |
| 364 | Fabaceae | Astragalus howellii | Astragalus howellii |
| 365 | Fabaceae | Astragalus inflexus | Astragalus inflexus |
| 366 | Fabaceae | Astragalus kentrophyta | Astragalus kentrophyta |
| 367 | Fabaceae | Astragalus laxmannii | ? |
| 368 | Fabaceae | Astragalus reventus | Astragalus reventus |
| 369 | Fabaceae | Cytisus multiflorus | Cytisus multiflorus |
| 370 | Fabaceae | Galega officinalis | (not treated in H&C) |
| 371 | Fabaceae | Genista tinctoria | (not treated in H&C) |
| 372 | Fabaceae | Hedysarum boreale | Hedysarum boreale |
| 373 | Fabaceae | Lathyrus bijugatus | Lathyrus bijugatus |
| 374 | Fabaceae | Lathyrus nissolia | (not treated in H&C) |
| 375 | Fabaceae | Lathyrus pratensis | Lathyrus pratensis |
| 376 | Fabaceae | Lathyrus sphaericus | Lathyrus sphaericus |
| 377 | Fabaceae | Lathyrus tuberosus | Lathyrus tuberosus |
| 378 | Fabaceae | Lathyrus vestitus | Lathyrus vestitus |
| 379 | Fabaceae | Lens culinaris | (not treated in H&C) |
| 380 | Fabaceae | Lotus denticulatus | Lotus denticulatus |
| 381 | Fabaceae | Lotus parviflorus | ? |
| 382 | Fabaceae | Lotus pedunculatus | Lotus corniculatus, in part |
| 383 | Fabaceae | Lotus tenuis | Lotus corniculatus, in part |
| 384 | Fabaceae | Lupinus alpicola | ? |
| 385 | Fabaceae | Lupinus amphibius | ? |
| 386 | Fabaceae | Lupinus andersonii | ? |
| 387 | Fabaceae | Lupinus arcticus | ? |
| 388 | Fabaceae | Lupinus aridus | Lupinus lepidus var. aridus |
| 389 | Fabaceae | Lupinus burkei | ? |
| 390 | Fabaceae | Lupinus densiflorus | ? |
| 391 | Fabaceae | Lupinus garfieldensis | Lupinus sericeus var. asotinensis |
| 392 | Fabaceae | Lupinus holosericeus | Lupinus holosericeus |
| 393 | Fabaceae | Lupinus lutescens | ? |
| 394 | Fabaceae | Lupinus lyallii | ? |
| 395 | Fabaceae | Lupinus minimus | ? |
| 396 | Fabaceae | Lupinus mollis | ? |
| 397 | Fabaceae | Lupinus nootkatensis | ? |
| 398 | Fabaceae | Lupinus ornatus | ? |
| 399 | Fabaceae | Lupinus prunophilus | Lupinus polyphyllus var. prunophilus |
| 400 | Fabaceae | Lupinus sellulus | Lupinus lepidus var. lobbii |
| 401 | Fabaceae | Lupinus subvexus | (not treated in H&C) |
| 402 | Fabaceae | Lupinus suksdorfii | (not treated in H&C) |
| 403 | Fabaceae | Ononis repens | Ononis repens |
| 404 | Fabaceae | Oxytropis deflexa | Oxytropis deflexa |
| 405 | Fabaceae | Oxytropis monticola | Oxytropis campestris var. gracilis |
| 406 | Fabaceae | Pisum sativum | (not treated in H&C) |
| 407 | Fabaceae | Psoralidium lanceolatum | Psoralea lanceolata |
| 408 | Fabaceae | Trifolium albopurpureum | Trifolium macraei var. albopurpureum |
| 409 | Fabaceae | Trifolium bifidum | Trifolium bifidum var. decipiens |
| 410 | Fabaceae | Trifolium douglasii | Trifolium douglasii |
| 411 | Fabaceae | Trifolium fucatum | Trifolium fucatum |
| 412 | Fabaceae | Trifolium gracilentum | Trifolium gracilentum |
| 413 | Fabaceae | Trifolium plumosum | Trifolium plumosum |
| 414 | Fabaceae | Trifolium resupinatum | ? |
| 415 | Fabaceae | Trifolium willdenowii | Trifolium tridentatum |
| 416 | Fabaceae | Vicia pannonica | Vicia pannonica |
| 417 | Fumariaceae | Corydalis caseana | Corydalis caseana |
| 418 | Gentianaceae | Centaurium muehlenbergii | Centaurium muhlenbergii |
| 419 | Gentianaceae | Gentianella tenella | Gentiana tenella |
| 420 | Grossulariaceae | Ribes inerme | Ribes inerme |
| 421 | Grossulariaceae | Ribes rubrum | Ribes sativum |
| 422 | Grossulariaceae | Ribes wolfii | Ribes wolfii |
| 423 | Hydrangeaceae | Philadelphus confusus | ? |
| 424 | Hydrangeaceae | Philadelphus trichothecus | ? |
| 425 | Hydrangeaceae | Philadelphus zelleri | ? |
| 426 | Hydrophyllaceae | Nama aretioides | Nama aretioides |
| 427 | Hydrophyllaceae | Nemophila kirtleyi | Nemophila kirtleyi |
| 428 | Hydrophyllaceae | Phacelia franklinii | Phacelia franklinii |
| 429 | Hydrophyllaceae | Phacelia leptosepala | Phacelia hastata var. leptosepala |
| 430 | Hydrophyllaceae | Phacelia mutabilis | Phacelia heterophylla var. pseudohispida |
| 431 | Hydrophyllaceae | Phacelia tetramera | Phacelia tetramera |
| 432 | Iridaceae | Sisyrinchium littorale | Sisyrinchium angustifolium, in part |
| 433 | Isoetaceae | Isoetes maritima | ? |
| 434 | Isoetaceae | Isoetes tenella | Isoetes echinospora |
| 435 | Juncaceae | Juncus alpinoarticulatus | ? |
| 436 | Juncaceae | Juncus brachyphyllus | Juncus brachyphyllus |
| 437 | Juncaceae | Juncus confusus | Juncus confusus |
| 438 | Juncaceae | Juncus covillei | Juncus covillei |
| 439 | Juncaceae | Juncus diffusissimus | ? |
| 440 | Juncaceae | Juncus dudleyi | Juncus tenuis var. dudleyi |
| 441 | Juncaceae | Juncus falcatus | Juncus falcatus |
| 442 | Juncaceae | Juncus hemiendytus | Juncus hemiendytus |
| 443 | Juncaceae | Juncus howellii | Juncus howellii |
| 444 | Juncaceae | Juncus kelloggii | Juncus kelloggii |
| 445 | Juncaceae | Juncus lesueurii | Juncus lesueurii |
| 446 | Juncaceae | Juncus longistylis | Juncus longistylis |
| 447 | Juncaceae | Juncus occidentalis | Juncus tenuis var. congestus |
| 448 | Juncaceae | Juncus orthophyllus | Juncus orthophyllus |
| 449 | Juncaceae | Juncus patens | Juncus patens |
| 450 | Juncaceae | Juncus pelocarpus | ? |
| 451 | Juncaceae | Juncus regelii | Juncus regelii |
| 452 | Juncaceae | Juncus saximontanus | Juncus ensifolius var. montanus |
| 453 | Juncaceae | Juncus tiehmii | (not treated in H&C) |
| 454 | Juncaceae | Juncus tracyi | Juncus tracyi |
| 455 | Juncaceae | Juncus xiphioides | ? |
| 456 | Juncaceae | Luzula fastigiata | ? |
| 457 | Juncaceae | Luzula glabrata | ? |
| 458 | Juncaceae | Luzula pallidula | ? |
| 459 | Juncaceae | Luzula piperi | Luzula piperi |
| 460 | Juncaginaceae | Triglochin concinna | Triglochin concinnum var. concinnum |
| 461 | Juncaginaceae | Triglochin palustris | Triglochin palustre |
| 462 | Lamiaceae | Acinos arvensis | Satureja acinos |
| 463 | Lamiaceae | Dracocephalum parviflorum | Dracocephalum parviflorum |
| 464 | Lamiaceae | Mentha X piperita | ? |
| 465 | Lamiaceae | Mentha X villosa | Mentha alopecuroides |
| 466 | Lamiaceae | Monarda didyma | Monarda didyma |
| 467 | Lamiaceae | Salvia glutinosa | ? |
| 468 | Lamiaceae | Salvia officinalis | Salvia officinalis |
| 469 | Lamiaceae | Stachys chamissonis | Stachys cooleyae |
| 470 | Lamiaceae | Thymus pulegioides | (not treated in H&C) |
| 471 | Lamiaceae | Trichostema lanceolatum | Trichostema lanceolatum |
| 472 | Lemnaceae | Lemna minuta | (not treated in H&C) |
| 473 | Lemnaceae | Wolffiella gladiata | Wolffiella floridana |
| 474 | Lentibulariaceae | Pinguicula macroceras | Pinguicula vulgaris ? |
| 475 | Lentibulariaceae | Utricularia cornuta | (not treated in H&C) |
| 476 | Lentibulariaceae | Utricularia macrorhiza | Utricularia vulgaris |
| 477 | Lentibulariaceae | Utricularia ochroleuca | (not treated in H&C) |
| 478 | Liliaceae | Allium columbianum | Allium douglasii var. columbianum |
| 479 | Liliaceae | Allium textile | Allium textile |
| 480 | Liliaceae | Allium validum | Allium validum |
| 481 | Liliaceae | Calochortus nitidus | Calochortus nitidus |
| 482 | Liliaceae | Hyacinthoides nonscripta | (not treated in H&C) |
| 483 | Liliaceae | Hyacinthoides x variabilis | (not treated in H&C) |
| 484 | Liliaceae | Ornithogalum nutans | (not treated in H&C) |
| 485 | Liliaceae | Streptopus streptopoides | Streptopus streptopoides |
| 486 | Liliaceae | Trillium albidum | (not treated in H&C) |
| 487 | Liliaceae | Trillium chloropetalum | Trillium chloropetalum |
| 488 | Linaceae | Linum usitatissimum | Linum usitatissimum |
| 489 | Lycopodiaceae | Huperzia chinensis | Lycopodium selago (in part) |
| 490 | Lycopodiaceae | Lycopodiella inundata | Lycopodium inundatum var. inundatum |
| 491 | Lycopodiaceae | Lycopodium alpinum X sitchense | |
| 492 | Lycopodiaceae | Lycopodium lagopus | (not treated in H&C) |
| 493 | Lythraceae | Rotala ramosior | Rotala ramosior |
| 494 | Malvaceae | Malvella leprosa | Sida hederacea |
| 495 | Marsileaceae | Marsilea oligospora | Marsilea vestita |
| 496 | Monotropaceae | Monotropa hypopithys | Hypopitys monotropa |
| 497 | Monotropaceae | Pityopus californica | Pityopus californica |
| 498 | Moraceae | Fatoua villosa | (not treated in H&C) |
| 499 | Myricaceae | Morella californica | Myrica californica |
| 500 | Nymphaeaceae | Nuphar lutea | Nuphar polysepalum |
| 501 | Nymphaeaceae | Nymphaea tetragona | Nymphaea tetragona |
| 502 | Oleaceae | Fraxinus pennsylvanica | (not treated in H&C) |
| 503 | Onagraceae | Camissonia boothii | Oenothera boothii |
| 504 | Onagraceae | Camissonia minor | Oenothera minor |
| 505 | Onagraceae | Camissonia pygmaea | Oenothera pygmaea |
| 506 | Onagraceae | Camissonia scapoidea | Oenothera scapoidea |
| 507 | Onagraceae | Epilobium foliosum | ? |
| 508 | Onagraceae | Epilobium leptocarpum | ? |
| 509 | Onagraceae | Epilobium leptophyllum | ? |
| 510 | Onagraceae | Epilobium mirabile | ? |
| 511 | Onagraceae | Epilobium saximontanum | ? |
| 512 | Onagraceae | Epilobium suffruticosum | Epilobium suffruticosum |
| 513 | Onagraceae | Epilobium X pulchrum | ? |
| 514 | Onagraceae | Gaura mollis | Gaura parviflora |
| 515 | Onagraceae | Gayophytum decipiens | Gayophytum decipiens |
| 516 | Onagraceae | Ludwigia grandiflora | Jussiaea uruguayensis |
| 517 | Ophioglossaceae | Botrychium campestre | (not treated in H&C) |
| 518 | Orchidaceae | Coeloglossum viride | Habenaria viridis |
| 519 | Orchidaceae | Cypripedium X columbianum | (not treated in H&C) |
| 520 | Orchidaceae | Listera borealis | Listera borealis |
| 521 | Orchidaceae | Piperia leptopetala | ? |
| 522 | Orchidaceae | Platanthera gracilis | ? |
| 523 | Orchidaceae | Platanthera sparsiflora | Habenaria sparsiflora |
| 524 | Orchidaceae | Platanthera X correllii | ? |
| 525 | Oxalidaceae | Oxalis dillenii | Oxalis dillenii, Oxalis stricta |
| 526 | Papaveraceae | Papaver argemone | Papaver argemone |
| 527 | Pinaceae | Tsuga X jeffreyi | (T. heterophylla X mertensiana) NOT IN H&C |
| 528 | Plantaginaceae | Plantago arenaria | Plantago psyllium |
| 529 | Plantaginaceae | Plantago aristata | Plantago aristata |
| 530 | Plantaginaceae | Plantago bigelovii | NOT INN H&C |
| 531 | Plantaginaceae | Plantago eriopoda | Plantago eriopoda |
| 532 | Plantaginaceae | Plantago macrocarpa | Plantago macrocarpa |
| 533 | Plantaginaceae | Plantago pusilla | Plantago pusilla |
| 534 | Poaceae | Achnatherum nelsonii | ? |
| 535 | Poaceae | Achnatherum occidentale | ? |
| 536 | Poaceae | Achnatherum richardsonii | Stipa richardsonii |
| 537 | Poaceae | Achnatherum thurberianum | Stipa thurberiana |
| 538 | Poaceae | Achnatherum X bloomeri | ? |
| 539 | Poaceae | Agropyron dasytachyum | Agropyron dasytachyum |
| 540 | Poaceae | Agrostis aequivalvis | Agrostis aequivalvis |
| 541 | Poaceae | Agrostis humilis | Agrostis humilis, Agrostis thurberiana |
| 542 | Poaceae | Agrostis idahoensis | Agrostis idahoensis |
| 543 | Poaceae | Agrostis mertensii | Agrostis borealis |
| 544 | Poaceae | Agrostis microphylla | Agrostis microphylla |
| 545 | Poaceae | Agrostis oregonensis | Agrostis oregonensis |
| 546 | Poaceae | Agrostis perennans | ? |
| 547 | Poaceae | Agrostis variabilis | Agrostis variabilis |
| 548 | Poaceae | Aira elegans | Aira elegans |
| 549 | Poaceae | Alopecurus carolinianus | Alopecurus carolinianus |
| 550 | Poaceae | Alopecurus saccatus | Alopecurus saccatus |
| 551 | Poaceae | Aristida longispica | ? |
| 552 | Poaceae | Brachiaria eruciformis | ? |
| 553 | Poaceae | Bromus aleutensis | Bromus sitchensis var. aleutensis |
| 554 | Poaceae | Bromus ciliatus | Bromus ciliatus |
| 555 | Poaceae | Bromus erectus | Bromus erectus |
| 556 | Poaceae | Bromus laevipes | ? |
| 557 | Poaceae | Bromus marginatus | Bromus carinatus var. linearis |
| 558 | Poaceae | Bromus orcuttianus | Bromus orcuttianus |
| 559 | Poaceae | Bromus polyanthus | ? |
| 560 | Poaceae | Bromus racemosus | ? |
| 561 | Poaceae | Bromus rigidus | Bromus rigidus |
| 562 | Poaceae | Bromus secalinus | Bromus secalinus |
| 563 | Poaceae | Bromus squarrosus | ? |
| 564 | Poaceae | Bromus stamineus | ? |
| 565 | Poaceae | Bromus suksdorfii | Bromus suksdorfii |
| 566 | Poaceae | Calamagrostis howellii | Calamagrostis howellii |
| 567 | Poaceae | Calamagrostis koelerioides | Calamagrostis koelerioides |
| 568 | Poaceae | Calamagrostis nutkaensis | Calamagrostis nutkaensis |
| 569 | Poaceae | Calamagrostis purpurascens | Calamagrostis purpurascens |
| 570 | Poaceae | Calamagrostis sesquiflora | Calamagrostis sesquiflora |
| 571 | Poaceae | Coleanthus subtilis | Coleanthus subtilis |
| 572 | Poaceae | Corynephorus canescens | Corynephorus canescens |
| 573 | Poaceae | Danthonia decumbens | Sieglingia decumbens |
| 574 | Poaceae | Deschampsia beringensis | ? |
| 575 | Poaceae | Deschampsia caespitosa | Deschampsia cespitosa vars. arctica, cespitosa, longiflora |
| 576 | Poaceae | Deschampsia danthonioides | Deschampsia danthonioides |
| 577 | Poaceae | Deschampsia holciformis | ? |
| 578 | Poaceae | Desmazeria rigida | Scleropoa rigida |
| 579 | Poaceae | Echinochloa frumentacea | (not treated in H&C) |
| 580 | Poaceae | Echinochloa muricata | (not treated in H&C) |
| 581 | Poaceae | Elymus alaskanus | ? |
| 582 | Poaceae | Elymus albicans | ? |
| 583 | Poaceae | Elymus caninus | Agropyron caninum ssp. caninum |
| 584 | Poaceae | Elymus hirsutus | Elymus hirsutus |
| 585 | Poaceae | Elymus lanceolatus | ? |
| 586 | Poaceae | Elymus multisetus | Sitanion jubatum |
| 587 | Poaceae | Elymus scribneri | Agropyron scribneri |
| 588 | Poaceae | Elymus submuticus | Elymus virginicus var. submuticus |
| 589 | Poaceae | Elymus trachycaulus | ? |
| 590 | Poaceae | Elymus wawawaiensis | ? |
| 591 | Poaceae | Elymus X hansenii | (not treated in H&C) |
| 592 | Poaceae | Elymus X pseudorepens | (not treated in H&C) |
| 593 | Poaceae | Eragrostis lutescens | Eragrostis lutescens |
| 594 | Poaceae | Eragrostis mexicana | ? |
| 595 | Poaceae | Eragrostis pectinacea | Eragrostis pectinacea |
| 596 | Poaceae | Eragrostis pilosa | Eragrostis multicaulis, Eragrostis pilosa |
| 597 | Poaceae | Festuca brachyphylla | Festuca ovina var. brevifolia |
| 598 | Poaceae | Festuca californica | Festuca californica |
| 599 | Poaceae | Festuca campestris | ? |
| 600 | Poaceae | Festuca filiformis | Festuca ovina var. capillata |
| 601 | Poaceae | Festuca hallii | ? |
| 602 | Poaceae | Festuca occidentalis | Festuca occidentalis |
| 603 | Poaceae | Festuca ovina | ? |
| 604 | Poaceae | Festuca rubra | Festuca rubra |
| 605 | Poaceae | Festuca saximontana | ? |
| 606 | Poaceae | Festuca subulata | Festuca subulata |
| 607 | Poaceae | Festuca subuliflora | Festuca subuliflora |
| 608 | Poaceae | Festuca trachyphylla | ? |
| 609 | Poaceae | Festuca washingtonica | ? |
| 610 | Poaceae | Glyceria canadensis | ? |
| 611 | Poaceae | Glyceria leptostachya | Glyceria leptostachya |
| 612 | Poaceae | Hierochloe hirta | ? |
| 613 | Poaceae | Hierochloe occidentalis | Hierochloe occidentalis |
| 614 | Poaceae | Holcus mollis | Holcus mollis |
| 615 | Poaceae | Hordeum marinum | ? |
| 616 | Poaceae | Leptochloa fusca | ? |
| 617 | Poaceae | Leymus flavescens | Elymus flavescens |
| 618 | Poaceae | Leymus racemosus | Elymus giganteus |
| 619 | Poaceae | Leymus triticoides | Elymus triticoides vars. pubescens, triticoides |
| 620 | Poaceae | Leymus X vancouverensis | ? |
| 621 | Poaceae | Lolium arundinaceum | Festuca arundinacea |
| 622 | Poaceae | Lolium temulentum | Lolium temulentum |
| 623 | Poaceae | Melica aristata | Melica aristata |
| 624 | Poaceae | Melica bulbosa | Melica bulbosa vars. bulbosa, intonsa |
| 625 | Poaceae | Melica fugax | Melica fugax |
| 626 | Poaceae | Melica harfordii | Melica harfordii |
| 627 | Poaceae | Muhlenbergia andina | Muhlenbergia andina |
| 628 | Poaceae | Muhlenbergia mexicana | Muhlenbergia mexicana |
| 629 | Poaceae | Muhlenbergia minutissima | Muhlenbergia minutissima |
| 630 | Poaceae | Muhlenbergia racemosa | Muhlenbergia racemosa |
| 631 | Poaceae | Panicum hirticaule | ? |
| 632 | Poaceae | Pascopyrum smithii | Agropyron smithii |
| 633 | Poaceae | Phalaris canariensis | Phalaris canariensis |
| 634 | Poaceae | Phalaris paradoxa | Phalaris paradoxa |
| 635 | Poaceae | Poa alpina | Poa alpina |
| 636 | Poaceae | Poa bolanderi | Poa bolanderi |
| 637 | Poaceae | Poa curtifolia | Poa curtifolia |
| 638 | Poaceae | Poa fendleriana | Poa fendleriana |
| 639 | Poaceae | Poa glauca | ? |
| 640 | Poaceae | Poa howellii | Poa howellii |
| 641 | Poaceae | Poa leibergii | Poa leibergii |
| 642 | Poaceae | Poa leptocoma | Poa leptocoma var. leptocoma |
| 643 | Poaceae | Poa lettermanii | Poa lettermanii |
| 644 | Poaceae | Poa marcida | Poa marcida |
| 645 | Poaceae | Poa nemoralis | Poa nemoralis |
| 646 | Poaceae | Poa nervosa | Poa nervosa |
| 647 | Poaceae | Poa paucispicula | Poa leptocoma var. paucispicula |
| 648 | Poaceae | Poa stenantha | Poa stenantha |
| 649 | Poaceae | Poa suksdorfii | Poa suksdorfii |
| 650 | Poaceae | Poa trivialis | Poa trivialis |
| 651 | Poaceae | Poa unilateralis | Poa pachypholis |
| 652 | Poaceae | Poa wheeleri | Poa nervosa var. wheeleri |
| 653 | Poaceae | Polypogon australis | (not treated in H&C) |
| 654 | Poaceae | Polypogon interruptus | Polypogon interruptus |
| 655 | Poaceae | Polypogon viridis | Agrostis semiverticillata |
| 656 | Poaceae | Psathyrostachys juncea | ? |
| 657 | Poaceae | Puccinellia lemmonii | Puccinellia lemmonii |
| 658 | Poaceae | Puccinellia lucida | Puccinellia lucida |
| 659 | Poaceae | Puccinellia maritima | Puccinellia maritima |
| 660 | Poaceae | Puccinellia nutkaensis | Puccinellia nutkaensis |
| 661 | Poaceae | Puccinellia nuttalliana | Puccinellia cusickii, Puccinellia nuttalliana |
| 662 | Poaceae | Puccinellia pumila | Puccinellia pumila |
| 663 | Poaceae | Puccinellia rupestris | ? |
| 664 | Poaceae | Scribneria bolanderi | Scribneria bolanderi |
| 665 | Poaceae | Setaria italica | Setaria viridis ? |
| 666 | Poaceae | Setaria parviflora | ? |
| 667 | Poaceae | Setaria pumila | (not treated in H&C) |
| 668 | Poaceae | Spartina gracilis | Spartina gracilis |
| 669 | Poaceae | Spartina X townsendii | Spartina townsendii |
| 670 | Poaceae | Sphenopholis intermedia | Sphenopholis obtusata |
| 671 | Poaceae | Sphenopholis obtusata | Sphenopholis obtusata |
| 672 | Poaceae | Sporobolus airoides | Sporobolus airoides |
| 673 | Poaceae | Sporobolus compositus | Sporobolus asper |
| 674 | Poaceae | Sporobolus contractus | ? |
| 675 | Poaceae | Sporobolus neglectus | Sporobolus neglectus |
| 676 | Poaceae | Thinopyrum intermedium | Agropyron intermedium |
| 677 | Poaceae | Trisetum canescens | Trisetum canescens, Trisetum cernuum |
| 678 | Poaceae | Trisetum flavescens | Trisetum flavescens |
| 679 | Poaceae | Trisetum wolfii | Trisetum wolfii |
| 680 | Poaceae | Vulpia microstachys | ? |
| 681 | Poaceae | Vulpia octoflora | Festuca octoflora |
| 682 | Poaceae | X Agropogon littoralis | ? |
| 683 | Poaceae | X Elyhordeum macounii | ? |
| 684 | Poaceae | X Elyhordeum stebbinsianum | ? |
| 685 | Poaceae | X Elyleymus aristatus | ? |
| 686 | Poaceae | X Pseudelymus saxicola | ? |
| 687 | Polemoniaceae | Allophyllum gilioides | (not treated in H&C) |
| 688 | Polemoniaceae | Collomia macrocalyx | Collomia macrocalyx |
| 689 | Polemoniaceae | Gilia leptomeria | Gilia leptomeria |
| 690 | Polemoniaceae | Gilia lottiae | ? |
| 691 | Polemoniaceae | Ipomopsis congesta | Gilia congesta |
| 692 | Polemoniaceae | Ipomopsis minutiflora | Gilia minutiflora |
| 693 | Polemoniaceae | Leptodactylon pungens | Leptodactylon pungens |
| 694 | Polemoniaceae | Linanthus bicolor | Linanthus bicolor |
| 695 | Polemoniaceae | Linanthus bolanderi | Linanthus bakeri |
| 696 | Polemoniaceae | Linanthus septentrionalis | Linanthus septentrionalis |
| 697 | Polemoniaceae | Phlox aculeata | Phlox aculeata |
| 698 | Polemoniaceae | Phlox colubrina | Phlox colubrina |
| 699 | Polemoniaceae | Phlox gracilis | Microsteris gracilis |
| 700 | Polemoniaceae | Phlox mollis | ? |
| 701 | Polemoniaceae | Phlox paniculata | ? |
| 702 | Polemoniaceae | Phlox pulvinata | Phlox pulvinata |
| 703 | Polemoniaceae | Phlox rigida | ? |
| 704 | Polemoniaceae | Phlox viridis | Phlox longifolia, in part |
| 705 | Polygonaceae | Chorizanthe watsonii | Chorizanthe watsonii |
| 706 | Polygonaceae | Eriogonum baileyi | Eriogonum baileyi |
| 707 | Polygonaceae | Eriogonum cernuum | Eriogonum cernuum |
| 708 | Polygonaceae | Eriogonum codium | (not treated in H&C) |
| 709 | Polygonaceae | Eriogonum maculatum | Eriogonum maculatum |
| 710 | Polygonaceae | Oxytheca dendroidea | Oxytheca dendroides |
| 711 | Polygonaceae | Polygonum amphibium | Polygonum amphibium |
| 712 | Polygonaceae | Polygonum arenastrum | Keys to Polygonum aviculare |
| 713 | Polygonaceae | Polygonum arifolium | ? |
| 714 | Polygonaceae | Polygonum aubertii | ? |
| 715 | Polygonaceae | Polygonum bistortoides | Polygonum bistortoides |
| 716 | Polygonaceae | Polygonum buxiforme | ? |
| 717 | Polygonaceae | Polygonum californicum | Polygonum californicum |
| 718 | Polygonaceae | Polygonum campanulatum | Polygonum campanulatum |
| 719 | Polygonaceae | Polygonum convolvulus | Polygonum convolvulus |
| 720 | Polygonaceae | Polygonum davisiae | Polygonum davisiae, Polygonum newberryi vars. glabrum, newberryi |
| 721 | Polygonaceae | Polygonum erectum | Polygonum erectum |
| 722 | Polygonaceae | Polygonum hydropiper | Polygonum hydropiper |
| 723 | Polygonaceae | Polygonum hydropiperoides | Polygonum hydropiperoides var. hydropiperoides |
| 724 | Polygonaceae | Polygonum lapathifolium | Polygonum lapathifolium |
| 725 | Polygonaceae | Polygonum parryi | Polygonum parryi |
| 726 | Polygonaceae | Polygonum persicaria | Polygonum persicaria |
| 727 | Polygonaceae | Polygonum phytolaccifolium | Polygonum phytolaccaefolium |
| 728 | Polygonaceae | Polygonum punctatum | Polygonum punctatum |
| 729 | Polygonaceae | Polygonum ramosissimum | Polygonum ramosissimum |
| 730 | Polygonaceae | Polygonum setaceum | Polygonum hydropiperoides var. setaceum |
| 731 | Polygonaceae | Polygonum viviparum | Polygonum viviparum |
| 732 | Polygonaceae | Polygonum X bohemicum | (not treated in H&C) |
| 733 | Polygonaceae | Rumex aquaticus | ? |
| 734 | Polygonaceae | Rumex patientia | Rumex patientia |
| 735 | Polygonaceae | Rumex paucifolius | Rumex paucifolius |
| 736 | Polygonaceae | Rumex sanguineus | Rumex sanguineus |
| 737 | Portulacaceae | Cistanthe rosea | (not treated in H&C) |
| 738 | Portulacaceae | Cistanthe tweedyi | Lewisia tweedyi |
| 739 | Portulacaceae | Talinum sediforme | Talinum okanoganense |
| 740 | Portulacaceae | Talinum spinescens | Talinum spinescens |
| 741 | Potamogetonaceae | Potamogeton alpinus | Potamogeton alpinus |
| 742 | Potamogetonaceae | Potamogeton friesii | Potamogeton friesii |
| 743 | Potamogetonaceae | Potamogeton obtusifolius | ? |
| 744 | Potamogetonaceae | Potamogeton X nericus | ? |
| 745 | Potamogetonaceae | Stuckenia filiformis | Potamogeton filiformis |
| 746 | Potamogetonaceae | Stuckenia vaginata | Potamogeton vaginatus |
| 747 | Primulaceae | Androsace filiformis | Androsace filiformis |
| 748 | Primulaceae | Lysimachia hybrida | Lysimachia lanceolata var. hybrida |
| 749 | Primulaceae | Samolus valerandi | (not treated in H&C) |
| 750 | Primulaceae | Trientalis borealis | Trientalis latifolia |
| 751 | Pteridaceae | Cheilanthes feei | Cheilanthes feei |
| 752 | Ranunculaceae | Actaea elata | Cimicifuga elata |
| 753 | Ranunculaceae | Actaea laciniata | Cimicifuga laciniata |
| 754 | Ranunculaceae | Anemone lithophila | Anemone drummondii var. lithophila |
| 755 | Ranunculaceae | Ceratocephala testiculata | Ranunculus testiculatus |
| 756 | Ranunculaceae | Clematis columbiana | Clematis pseudoalpina |
| 757 | Ranunculaceae | Delphinium basalticum | (not treated in H&C) |
| 758 | Ranunculaceae | Delphinium stachydeum | Delphinium stachydeum |
| 759 | Ranunculaceae | Delphinium sutherlandii | (not treated in H&C) |
| 760 | Ranunculaceae | Delphinium X burkei | NOT Delphinium burkei Greene |
| 761 | Ranunculaceae | Delphinium X occidentale | Delphinium occidentale |
| 762 | Ranunculaceae | Kumlienia cooleyae | Ranunculus cooleyae |
| 763 | Ranunculaceae | Ranunculus abortivus | Ranunculus abortivus |
| 764 | Ranunculaceae | Ranunculus bulbosus | Ranunculus bulbosus |
| 765 | Ranunculaceae | Ranunculus cardiophyllus | Ranunculus cardiophyllus |
| 766 | Ranunculaceae | Ranunculus gmelinii | Ranunculus gmelinii vars. hookeri, limosus |
| 767 | Ranunculaceae | Ranunculus inamoenus | Ranunculus inamoenus |
| 768 | Ranunculaceae | Ranunculus longirostris | Ranunculus longirostris, Ranunculus subrigidus |
| 769 | Ranunculaceae | Ranunculus macounii | Ranunculus macounii vars. macounii, oreganus |
| 770 | Ranunculaceae | Ranunculus pedatifidus | Ranunculus pedatifidus |
| 771 | Ranunculaceae | Ranunculus pensylvanicus | Ranunculus pensylvanicus |
| 772 | Ranunculaceae | Ranunculus pygmaeus | Ranunculus pygmaeus |
| 773 | Ranunculaceae | Ranunculus recurvatus | ? |
| 774 | Ranunculaceae | Ranunculus rhomboideus | ? |
| 775 | Ranunculaceae | Ranunculus sardous | Ranunculus sardous |
| 776 | Ranunculaceae | Ranunculus suksdorfii | Ranunculus eschscholtzii var. suksdorfii |
| 777 | Ranunculaceae | Ranunculus trichophyllus | ? |
| 778 | Ranunculaceae | Ranunculus verecundus | Ranunculus verecundus |
| 779 | Ranunculaceae | Thalictrum sparsiflorum | Thalictrum sparsiflorum |
| 780 | Ranunculaceae | Thalictrum venulosum | Thalictrum venulosum |
| 781 | Ranunculaceae | Trollius laxus | Trollius laxus |
| 782 | Rosaceae | Agrimonia gryposepala | (not treated in H&C) |
| 783 | Rosaceae | Amelanchier pallida | ? |
| 784 | Rosaceae | Amelanchier pumila | Amelanchier alnifolia var. pumila |
| 785 | Rosaceae | Argentina egedii | Potentilla pacifica |
| 786 | Rosaceae | Crataegus chrysocarpa | (not treated in H&C) |
| 787 | Rosaceae | Crataegus laevigata | (not treated in H&C) |
| 788 | Rosaceae | Crataegus okanaganensis | (not treated in H&C) |
| 789 | Rosaceae | Crataegus okennonii | (not treated in H&C) |
| 790 | Rosaceae | Crataegus phippsii | (not treated in H&C) |
| 791 | Rosaceae | Crataegus succulenta | (not treated in H&C) |
| 792 | Rosaceae | Filipendula occidentalis | Filipendula occidentalis |
| 793 | Rosaceae | Fragaria crinita | Fragaria vesca var. crinita |
| 794 | Rosaceae | Fragaria X ananassa | (not treated in H&C) |
| 795 | Rosaceae | Petrophyton cinerascens | Petrophytum cinerascens |
| 796 | Rosaceae | Potentilla biennis | Potentilla biennis |
| 797 | Rosaceae | Potentilla glandulosa | Potentilla glandulosa |
| 798 | Rosaceae | Potentilla nana | ? |
| 799 | Rosaceae | Potentilla newberryi | Potentilla newberryi |
| 800 | Rosaceae | Potentilla paradoxa | Potentilla paradoxa |
| 801 | Rosaceae | Potentilla pectinisecta | Potentilla gracilis var. elmeri |
| 802 | Rosaceae | Potentilla pensylvanica | Potentilla pensylvanica |
| 803 | Rosaceae | Potentilla pulcherrima | Potentilla gracilis var. pulcherrima |
| 804 | Rosaceae | Potentilla uniflora | Potentilla uniflora |
| 805 | Rosaceae | Prunus cerasus | Prunus cerasus |
| 806 | Rosaceae | Prunus X pugetensis | (not treated in H&C) |
| 807 | Rosaceae | Rosa micrantha | (not treated in H&C) |
| 808 | Rosaceae | Rubus discolor | Rubus discolor |
| 809 | Rosaceae | Rubus macrophyllus | Rubus macrophyllus |
| 810 | Rosaceae | Sanguisorba canadensis | Sanguisorba sitchensis |
| 811 | Rosaceae | Sanguisorba menziesii | Sanguisorba menziesii |
| 812 | Rosaceae | Sorbaria arborea | (not treated in H&C) |
| 813 | Rosaceae | Sorbaria sorbifolia | (not treated in H&C) |
| 814 | Rosaceae | Spiraea tomentosa | ? |
| 815 | Rosaceae | Spiraea X pyramidata | Spiraea pyramidata |
| 816 | Rubiaceae | Galium humifusum | Asperula humifusa |
| 817 | Rubiaceae | Galium mexicanum | (not treated in H&C) |
| 818 | Rubiaceae | Galium palustre | ? |
| 819 | Rubiaceae | Galium sylvaticum | ? |
| 820 | Rubiaceae | Galium tricornutum | Galium tricornatum |
| 821 | Rubiaceae | Galium watsonii | ? |
| 822 | Salicaceae | Populus balsamifera | Populus trichocarpa |
| 823 | Salicaceae | Salix brachycarpa | Salix brachycarpa |
| 824 | Salicaceae | Salix fluviatilis | Salix fluviatilis |
| 825 | Salicaceae | Salix monochroma | ? |
| 826 | Salicaceae | Salix petiolaris | ? |
| 827 | Salicaceae | Salix sessilifolia | Salix sessilifolia |
| 828 | Salicaceae | Salix X dieckiana | (not treated in H&C) |
| 829 | Salicaceae | Salix X ehrhartiana | (not treated in H&C) |
| 830 | Salicaceae | Salix X pendulina | (not treated in H&C) |
| 831 | Salicaceae | Salix X rubens | (not treated in H&C) |
| 832 | Santalaceae | Geocaulon lividum | Comandra livida |
| 833 | Saxifragaceae | Boykinia intermedia | Boykinia major vars. |
| 834 | Saxifragaceae | Parnassia kotzebuei | Parnassia kotzebuei var. pumila |
| 835 | Saxifragaceae | Saxifraga adscendens | Saxifraga adscendens |
| 836 | Saxifragaceae | Saxifraga apetala | Saxifraga integrifolia var. apetala |
| 837 | Saxifragaceae | Saxifraga caespitosa | Saxifraga caespitosa |
| 838 | Saxifragaceae | Saxifraga cernua | Saxifraga cernua |
| 839 | Saxifragaceae | Saxifraga idahoensis | Saxifraga occidentalis var. idahoensis |
| 840 | Saxifragaceae | Saxifraga integrifolia | Saxifraga integrifolia var. integrifolia |
| 841 | Saxifragaceae | Saxifraga lyallii | Saxifraga lyallii |
| 842 | Saxifragaceae | Saxifraga nelsoniana | Saxifraga punctata |
| 843 | Saxifragaceae | Saxifraga nidifica | Saxifraga integrifolia vars. claytoniaefolia, columbiana, leptopetala |
| 844 | Saxifragaceae | Saxifraga nuttallii | Saxifraga nuttallii |
| 845 | Saxifragaceae | Saxifraga occidentalis | Saxifraga occidentalis vars. allenii, occidentalis |
| 846 | Saxifragaceae | Saxifraga odontoloma | Saxifraga arguta |
| 847 | Saxifragaceae | Saxifraga oregana | Saxifraga oregana vars. montanensis, oregana |
| 848 | Saxifragaceae | Saxifraga rivularis | Saxifraga debilis |
| 849 | Saxifragaceae | Saxifraga rufidula | Saxifraga occidentalis var. rufidula |
| 850 | Saxifragaceae | Saxifraga stolonifera | ? |
| 851 | Saxifragaceae | Saxifraga tischii | ? |
| 852 | Saxifragaceae | Saxifraga tolmiei | Saxifraga tolmiei vars. ledifolia, tolmiei |
| 853 | Saxifragaceae | X Toltella detlingii | (not treated in H&C) |
| 854 | Scrophulariaceae | Castilleja affinis | Castilleja litoralis, in part |
| 855 | Scrophulariaceae | Castilleja sulphurea | Castilleja sulphurea |
| 856 | Scrophulariaceae | Mimetanthe pilosa | Mimetanthe pilosa |
| 857 | Scrophulariaceae | Mimulus breviflorus | Mimulus breviflorus |
| 858 | Scrophulariaceae | Mimulus clivicola | Mimulus clivicola |
| 859 | Scrophulariaceae | Mimulus coccineus | (not treated in H&C) |
| 860 | Scrophulariaceae | Mimulus pulsiferae | Mimulus pulsiferae |
| 861 | Scrophulariaceae | Mimulus ringens | (not treated in H&C) |
| 862 | Scrophulariaceae | Mimulus washingtonensis | Mimulus washingtonensis |
| 863 | Scrophulariaceae | Misopates orontium | Antirrhinum orontium |
| 864 | Scrophulariaceae | Nuttallanthus canadensis | Linaria canadensis var. canadensis |
| 865 | Scrophulariaceae | Nuttallanthus texanus | Linaria canadensis var. texana |
| 866 | Scrophulariaceae | Orthocarpus barbatus | Orthocarpus barbatus |
| 867 | Scrophulariaceae | Penstemon diphyllus | Penstemon diphyllus |
| 868 | Scrophulariaceae | Penstemon subserratus | Penstemon subserratus |
| 869 | Scrophulariaceae | Veronica biloba | Veronica biloba |
| 870 | Scrophulariaceae | Veronica longifolia | Veronica longifolia |
| 871 | Scrophulariaceae | Veronica triphyllos | ? |
| 872 | Selaginellaceae | Selaginella densa | Selaginella densa |
| 873 | Solanaceae | Atropa bella-donna | (not treated in H&C) |
| 874 | Solanaceae | Nicotiana acuminata | Nicotiana acuminata |
| 875 | Solanaceae | Physalis grisea | Physalis pubescens var. grisea |
| 876 | Solanaceae | Physalis hispida | ? |
| 877 | Solanaceae | Physalis philadelphica | ? |
| 878 | Sparganiaceae | Sparganium androcladum | ? |
| 879 | Sparganiaceae | Sparganium erectum | ? |
| 880 | Sparganiaceae | Sparganium fluctuans | Sparganium fluctuans |
| 881 | Tamaricaceae | Tamarix gallica | Tamarix gallica |
| 882 | Taxaceae | Taxus baccata | (not treated in H&C) |
| 883 | Thymelaeaceae | Thymelaea passerina | (not treated in H&C) |
| 884 | Ulmaceae | Celtis laevigata | Celtis reticulata |
| 885 | Valerianaceae | Valeriana acutiloba | Valeriana acutiloba |
| 886 | Valerianaceae | Valeriana occidentalis | Valeriana occidentalis |
| 887 | Valerianaceae | Valeriana officinalis | Valeriana officinalis |
| 888 | Valerianaceae | Valerianella carinata | Valerianella carinata |
| 889 | Verbenaceae | Verbena X bingenensis | (not treated in H&C) |
| 890 | Verbenaceae | Verbena X perriana | (not treated in H&C) |
| 891 | Violaceae | Viola epipsila | (not treated in H&C) |
| 892 | Violaceae | Viola langsdorfii | Viola langsdorfii |
| 893 | Violaceae | Viola renifolia | Viola renifolia |
| 894 | Violaceae | Viola selkirkii | (not treated in H&C) |
| 895 | Violaceae | Viola septentrionalis | Viola septentrionalis |
| 896 | Viscaceae | Arceuthobium laricis | Arceuthobium campylopodum f. laricis |
| 897 | Viscaceae | Arceuthobium tsugense | Arceuthobium campylopodum f. tsugensis |
| 898 | Vitaceae | Vitis riparia | Vitis riparia |
| 899 | Vitaceae | Vitis vinifera | Vitis vinifera |
| 900 | Zosteraceae | Phyllospadix serrulatus | (not treated in H&C) |
| 901 | Zygophyllaceae | Peganum harmala | Peganum harmala |
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