Names beginning with H: hackberry, hairgrass, hairy earth tongue, halimolobos, halogeton, halos, handkerchief, hardgrass, hardheads, hare's-ear, harebell, hareleaf, hat, haw, hawk-wing, hawkbit, hawksbeard, hawkweed, hawthorn, hay-cap, haymaker, hazelnut, heal-all, heart's-delight, heartweed, heather, Hebeloma, hedge-hyssop, hedge-nettle, hedge-parsley, hedgehog, helianthella, heliotrope, hellebore, helleborine, hellroot, helmet, Helvella, hemlock, hemlock-parsley, hemp, hemp nettle, hen, hen-nettle, henbane, henbit, herald-of-winter, herb-bennet, herb-Robert, Hericium, hesperochiron, high-bush cranberry, hoary-aster, hoarycress, hogbite, hogweed, hollow-foot, holly, holly-fern, hollyhock, holy-clover, honesty, honey locust, honeysuckle, hood, hops, hopsage, horehound, horkelia, horn-of-plenty, horse-chestnut, horse-nettle, horsebrush, horseradish, horsetail, horseweed, hound's-tongue, howellwort, huckleberry, hulsea, hungerweed, hutchinsia, hyacinth, Hydnellum, Hydnum, hydrilla, hymenopappus, Hypomyces, hyssop
Hackberry
netleaf hackberry (Celtis reticulata) – 25 photos
Hairgrass
annual hairgrass (Deschampsia danthonioides) – 18 photos
early silver hairgrass (Aira praecox) – 5 photos
mountain hairgrass (Vahlodea atropurpurea) – 12 photos
silver hairgrass (Aira caryophyllea) – 14 photos
silver hairgrass (Aira caryophyllea var. caryophyllea) – 4 photos
slender hairgrass (Deschampsia elongata) – 28 photos
tufted hairgrass (Deschampsia cespitosa) – 28 photos
Hairy earth tongue
variable hairy earth tongue (Trichoglossum variabile) – 4 photos
Halimolobos
puzzling halimolobos (Sandbergia perplexa) – 5 photos
Halogeton
Halos
blue halos (Psilocybe cyanescens) – 5 photos
Handkerchief
cowboy's handkerchief (Hygrophorus eburneus) – 4 photos
Hardgrass
common hardgrass (Sclerochloa dura) – 19 photos
Hardheads
Hare's-ear
hare's-ear (Otidea onotica) – 7 photos
Harebell
Alaska harebell (Campanula lasiocarpa) – 21 photos
Parry's harebell (Campanula parryi) – 3 photos
Parry's harebell (Campanula parryi var. idahoensis) – 5 photos
rough harebell (Campanula scabrella) – 28 photos
rover harebell (Campanula rapunculoides) – 13 photos
Hareleaf
slender hareleaf (Lagophylla ramosissima) – 34 photos
Hat
witch's hat (Hygrocybe conica) – 8 photos
Haw
Hawk-wing
Hawkbit
autumn hawkbit (Leontodon autumnalis) – 11 photos
hairy hawkbit (Leontodon saxatilis) – 10 photos
lesser hawkbit (Leontodon saxatilis ssp. saxatilis) – 10 photos
Hawksbeard
annual hawksbeard (Crepis tectorum) – 5 photos
Baker's hawksbeard (Crepis bakeri) – 14 photos
bearded hawksbeard (Crepis barbigera) – 43 photos
bristly hawksbeard (Crepis setosa) – 4 photos
dandelion hawksbeard (Crepis runcinata ssp. runcinata) – 17 photos
French hawksbeard (Crepis nicaeensis) – 3 photos
gray hawksbeard (Crepis intermedia) – 34 photos
intermediate hawksbeard (Crepis intermedia) – 34 photos
limestone hawksbeard (Crepis intermedia) – 34 photos
long-leaved hawksbeard (Crepis acuminata) – 13 photos
low hawksbeard (Askellia pygmaea) – 11 photos
low hawksbeard (Crepis modocensis) – 48 photos
meadow hawksbeard (Crepis runcinata ssp. runcinata) – 17 photos
Modoc hawksbeard (Crepis modocensis) – 48 photos
naked-stemmed hawksbeard (Crepis pleurocarpa) – 4 photos
narrow leaf hawksbeard (Crepis tectorum) – 5 photos
rooftop hawksbeard (Crepis tectorum) – 5 photos
rough hawksbeard (Crepis setosa) – 4 photos
slender hawksbeard (Crepis atribarba) – 48 photos
smooth hawksbeard (Crepis capillaris) – 39 photos
tapertip hawksbeard (Crepis acuminata) – 13 photos
Turkish hawksbeard (Crepis nicaeensis) – 3 photos
western hawksbeard (Crepis occidentalis) – 39 photos
Hawkweed
alpine hawkweed (Hieracium triste) – 40 photos
common hawkweed (Hieracium lachenalii) – 29 photos
English hawkweed (Hieracium lachenalii) – 29 photos
European hawkweed (Hieracium lachenalii) – 29 photos
flowery hawkweed (Hieracium ×floribundum) – 8 photos
hound-tongue hawkweed (Hieracium scouleri) – 79 photos
long-bearded hawkweed (Hieracium longiberbe) – 4 photos
meadow hawkweed (Hieracium caespitosum) – 32 photos
mottled hawkweed (Hieracium maculatum) – 7 photos
mouse-ear hawkweed (Hieracium pilosella) – 12 photos
narrowleaf hawkweed (Hieracium umbellatum) – 20 photos
orange hawkweed (Hieracium aurantiacum) – 38 photos
savoy hawkweed (Hieracium sabaudum) – 2 photos
Scouler's hawkweed (Hieracium scouleri) – 79 photos
slender hawkweed (Hieracium triste) – 40 photos
tall hawkweed (Hieracium piloselloides) – 9 photos
umbellate hawkweed (Hieracium umbellatum) – 20 photos
wall hawkweed (Hieracium murorum) – 3 photos
whip hawkweed (Hieracium flagellare) – 3 photos
white hawkweed (Hieracium albiflorum) – 44 photos
white-flowered hawkweed (Hieracium albiflorum) – 44 photos
yellow devil hawkweed (Hieracium glomeratum) – 12 photos
Hawthorn
black hawthorn (Crataegus douglasii) – 79 photos
Castlegar hawthorn (Crataegus castlegarensis) – 17 photos
common hawthorn (Crataegus monogyna var. monogyna) – 16 photos
Douglas's hawthorn (Crataegus douglasii) – 79 photos
English hawthorn (Crataegus monogyna) – 30 photos
English hawthorn (Crataegus monogyna var. monogyna) – 16 photos
fireberry hawthorn (Crataegus chrysocarpa) – 8 photos
huckleberry hawthorn (Crataegus gaylussacia) – 31 photos
large-thorned hawthorn (Crataegus macracantha) – 12 photos
O'Kennon's hawthorn (Crataegus okennonii) – 4 photos
Okanagan hawthorn (Crataegus okanaganensis) – 10 photos
one-seed hawthorn (Crataegus monogyna) – 30 photos
one-seeded hawthorn (Crataegus monogyna var. monogyna) – 16 photos
Oregon hybrid hawthorn (Crataegus ×cogswellii) – 12 photos
Phipps's hawthorn (Crataegus phippsii) – 3 photos
Piper's hawthorn (Crataegus chrysocarpa var. piperi) – 4 photos
slender red hawthorn (Crataegus tenuior) – 2 photos
Suksdorf's hawthorn (Crataegus gaylussacia) – 31 photos
western large-thorned hawthorn (Crataegus macracantha) – 12 photos
Hay-cap
brown hay-cap (Panaeolina foenisecii (Panaeolus)) – 2 photos
Haymaker
Hazelnut
beaked hazelnut (Corylus cornuta) – 29 photos
California hazelnut (Corylus cornuta ssp. californica) – 20 photos
European hazelnut (Corylus avellana) – 28 photos
Heal-all
Heart's-delight
heart's-delight (Abronia fragrans) – 4 photos
Heartweed
Heather
alpine heather (Harrimanella stelleriana) – 9 photos
common heather (Calluna vulgaris) – 7 photos
Mertens' mountain heather (Cassiope mertensiana ssp. mertensiana) – 44 photos
western moss heather (Cassiope mertensiana ssp. mertensiana) – 22 photos
Hebeloma
dark-centered Hebeloma (Hebeloma mesophaeum) – 10 photos
veiled Hebeloma (Hebeloma mesophaeum) – 10 photos
Hedge-hyssop
American hedge-hyssop (Gratiola neglecta) – 24 photos
bractless hedge-hyssop (Gratiola ebracteata) – 25 photos
clammy hedge-hyssop (Gratiola neglecta) – 24 photos
Hedge-nettle
Cooley's hedge-nettle (Stachys cooleyae) – 39 photos
field hedge-nettle (Stachys arvensis) – 3 photos
Mexican hedge-nettle (Stachys mexicana) – 20 photos
rigid hedge-nettle (Stachys rigida) – 21 photos
swamp hedge-nettle (Stachys pilosa var. pilosa) – 42 photos
Hedge-parsley
California hedge-parsley (Yabea microcarpa) – 26 photos
false hedge-parsley (Yabea microcarpa) – 26 photos
field hedge-parsley (Torilis arvensis) – 65 photos
Japanese hedge-parsley (Torilis japonica) – 14 photos
upright hedge-parsley (Torilis japonica) – 14 photos
Hedgehog
bearded hedgehog (Hericium erinaceus) – 2 photos
bitter hedgehog (Sarcodon scabrosus) – 3 photos
depressed hedgehog (Hydnum umbilicatum) – 4 photos
scaly hedgehog (Sarcodon imbricatus) – 7 photos
shingled hedgehog (Sarcodon imbricatus) – 7 photos
spreading hedgehog (Hydnum repandum) – 4 photos
wood hedgehog (Hydnum repandum) – 4 photos
Helianthella
Douglas helianthella (Helianthella uniflora var. douglasii) – 58 photos
Rocky Mountain helianthella (Helianthella uniflora) – 11 photos
Heliotrope
salt heliotrope (Heliotropium curassavicum) – 25 photos
salt heliotrope (Heliotropium curassavicum var. obovatum) – 2 photos
seaside heliotrope (Heliotropium curassavicum) – 25 photos
Hellebore
American wild hellebore (Veratrum viride var. eschscholzianum) – 41 photos
California wild hellebore (Veratrum californicum var. californicum) – 19 photos
siskiyou wild hellebore (Veratrum insolitum) – 12 photos
stinking hellebore (Helleborus foetidus) – 7 photos
tailed wild hellebore (Veratrum californicum var. caudatum) – 18 photos
Helleborine
broad-leaved helleborine (Epipactis helleborine) – 13 photos
garden helleborine (Epipactis helleborine) – 13 photos
giant helleborine (Epipactis gigantea) – 39 photos
Hellroot
Helmet
little helmet (Coprinellus disseminatus) – 6 photos
policeman's helmet (Impatiens glandulifera) – 19 photos
Helvella
black Helvella (Helvella vespertina) – 7 photos
fluted black Helvella (Helvella vespertina) – 7 photos
fluted white Helvella (Helvella crispa) – 5 photos
slender-stalked Helvella (Helvella elastica) – 13 photos
smooth-stalked Helvella (Helvella elastica) – 13 photos
white Helvella (Helvella crispa) – 5 photos
Hemlock
mountain hemlock (Tsuga mertensiana) – 25 photos
western hemlock (Tsuga heterophylla) – 42 photos
Hemlock-parsley
Pacific hemlock-parsley (Conioselinum pacificum) – 24 photos
Hemp
Hemp nettle
bifid hemp nettle (Galeopsis bifida) – 19 photos
common hemp nettle (Galeopsis tetrahit) – 9 photos
Hen
Hen-nettle
spotted hen-nettle (Lamium maculatum) – 11 photos
Henbane
black henbane (Hyoscyamus niger) – 20 photos
Henbit
spotted henbit (Lamium maculatum) – 11 photos
Herald-of-winter
herald-of-winter (Hygrophorus hypothejus) – 7 photos
Herb-bennet
herb-bennet (Geum urbanum) – 8 photos
Herb-Robert
herb-Robert (Geranium robertianum) – 37 photos
Hericium
lion's mane Hericium (Hericium erinaceus) – 2 photos
unbranched Hericium (Hericium erinaceus) – 2 photos
Hesperochiron
California hesperochiron (Hesperochiron californicus) – 15 photos
small hesperochiron (Hesperochiron pumilus) – 47 photos
High-bush cranberry
American high-bush cranberry (Viburnum opulus var. americanum) – 9 photos
European high-bush cranberry (Viburnum opulus var. opulus) – 11 photos
high-bush cranberry (Viburnum opulus) – 6 photos
Hoary-aster
hoary-aster (Dieteria canescens) – 26 photos
hoary-aster (Dieteria canescens var. incana) – 41 photos
tall hoary-aster (Dieteria canescens var. incana) – 41 photos
Hoarycress
chalapa hoarycress (Lepidium chalepense) – 22 photos
globepodded hoarycress (Lepidium appelianum) – 26 photos
heart-podded hoarycress (Lepidium draba) – 51 photos
lens-podded hoarycress (Lepidium chalepense) – 22 photos
Hogbite
Hogweed
American hogweed (Heracleum maximum) – 98 photos
giant hogweed (Heracleum mantegazzianum) – 10 photos
Hollow-foot
hollow-foot (Suillus cavipes) – 4 photos
Holly
English holly (Ilex aquifolium) – 18 photos
Holly-fern
Braun's holly-fern (Polystichum braunii) – 13 photos
Vancouver holly-fern (Polystichum andersonii) – 15 photos
Hollyhock
Holy-clover
holy-clover (Onobrychis viciifolia) – 11 photos
Honesty
Honey locust
honey locust (Gleditsia triacanthos) – 18 photos
Honeysuckle
bearberry honeysuckle (Lonicera involucrata) – 38 photos
bearberry honeysuckle (Lonicera involucrata var. involucrata) – 38 photos
bluefly honeysuckle (Lonicera cauriana) – 11 photos
Etruscan honeysuckle (Lonicera etrusca) – 4 photos
hairy honeysuckle (Lonicera hispidula) – 13 photos
Japanese honeysuckle (Lonicera japonica) – 23 photos
orange honeysuckle (Lonicera ciliosa) – 84 photos
pink honeysuckle (Lonicera hispidula) – 13 photos
purple-flower honeysuckle (Lonicera conjugialis) – 13 photos
Rocky Mountain honeysuckle (Lonicera utahensis) – 48 photos
showy fly honeysuckle (Lonicera ×bella Patrick Loafman) – 2 photos
sweet-berry honeysuckle (Lonicera cauriana) – 11 photos
Tartarian honeysuckle (Lonicera tatarica) – 34 photos
Utah honeysuckle (Lonicera utahensis) – 48 photos
Hood
scarlet hood (Hygrocybe coccinea) – 3 photos
Hops
Hopsage
spiny hopsage (Grayia spinosa) – 52 photos
Horehound
white horehound (Marrubium vulgare) – 25 photos
Horkelia
Horn-of-plenty
horn-of-plenty (Craterellus cornucopioides) – 1 photo
Horse-chestnut
horse-chestnut (Aesculus hippocastanum) – 18 photos
Horse-nettle
horse-nettle (Solanum carolinense) – 8 photos
white horse-nettle (Solanum elaeagnifolium) – 10 photos
Horsebrush
gray horsebrush (Tetradymia canescens) – 26 photos
spineless horsebrush (Tetradymia canescens) – 26 photos
Horseradish
horseradish (Armoracia rusticana) – 14 photos
Horsetail
common horsetail (Equisetum arvense) – 43 photos
Ferriss's horsetail (Equisetum ×ferrissii) – 26 photos
field horsetail (Equisetum arvense) – 43 photos
giant horsetail (Equisetum telmateia) – 10 photos
giant horsetail (Equisetum telmateia ssp. braunii) – 30 photos
great horsetail (Equisetum telmateia ssp. braunii) – 30 photos
marsh horsetail (Equisetum palustre) – 20 photos
meadow horsetail (Equisetum pratense) – 8 photos
river horsetail (Equisetum fluviatile) – 24 photos
scouring rush horsetail (Equisetum hyemale) – 30 photos
sedgelike horsetail (Equisetum scirpoides) – 15 photos
swamp horsetail (Equisetum fluviatile) – 24 photos
variegated horsetail (Equisetum variegatum) – 15 photos
variegated horsetail (Equisetum variegatum ssp. variegatum) – 2 photos
water horsetail (Equisetum fluviatile) – 24 photos
wood horsetail (Equisetum sylvaticum) – 22 photos
woodland horsetail (Equisetum sylvaticum) – 22 photos
Horseweed
Hound's-tongue
Adeline's hound's-tongue (Adelinia grandis) – 22 photos
common hound's-tongue (Cynoglossum officinale) – 49 photos
Pacific hound's-tongue (Adelinia grandis) – 22 photos
Howellwort
water Howellwort (Howellia aquatilis) – 36 photos
Huckleberry
blueleaf huckleberry (Vaccinium deliciosum) – 28 photos
dwarf huckleberry (Vaccinium cespitosum) – 48 photos
evergreen huckleberry (Vaccinium ovatum) – 22 photos
fool's huckleberry (Rhododendron menziesii) – 49 photos
huckleberry (Vaccinium) – 3 photos
red huckleberry (Vaccinium parvifolium) – 46 photos
tall huckleberry (Vaccinium membranaceum) – 54 photos
thin-leaved huckleberry (Vaccinium membranaceum) – 54 photos
Hulsea
alpine hulsea (Hulsea algida) – 2 photos
small hulsea (Hulsea nana) – 29 photos
Hungerweed
hungerweed (Ranunculus arvensis) – 32 photos
Hutchinsia
hutchinsia (Hornungia procumbens) – 34 photos
prostrate hutchinsia (Hornungia procumbens) – 34 photos
Hyacinth
wild hyacinth (Triteleia hyacinthina) – 45 photos
Hydnellum
bleeding Hydnellum (Hydnellum peckii) – 13 photos
blue-gray Hydnellum (Hydnellum caeruleum) – 5 photos
bluish Hydnellum (Hydnellum caeruleum) – 5 photos
orange Hydnellum (Hydnellum aurantiacum) – 10 photos
sweet-smelling Hydnellum (Hydnellum suaveolens) – 7 photos
Hydnum
scaber Hydnum (Sarcodon scabrosus) – 3 photos
zoned cork Hydnum (Phellodon tomentosus) – 3 photos
Hydrilla
Hymenopappus
fineleaf hymenopappus (Hymenopappus filifolius) – 9 photos
Hypomyces
yellow-green Hypomyces (Hypomyces luteovirens) – 1 photo
Hyssop
wild hyssop (Verbena hastata) – 26 photos
