Vascular Plants

Includes all flowering plants, conifers, ferns and fern-allies.


Browse by scientific name:

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Scientific names beginning with N:
25 genera
52 species, 13 subspecies and varieties
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Nabalus alatuswestern rattlesnake root
Distribution: Occurring chiefly west of the Cascades crest in Washington; Alaska, south to Oregon, east to Alberta, Idaho, and Montana.
Habitat: Streambanks and other moist, shaded places.
Origin: Native
Flowers: July-September
Najas canadensisCanadian water nymph
Origin: Native
Najas flexilisor slender naias, slender nymph, wavy water nymph
Distribution: Distributed on both sides of the Cascades in Washington; Alaska south to California, east to Arizona, and across the northern half of North America.
Habitat: Fresh to slightly brackish water.
Origin: Native
Flowers: April-August
Najas guadalupensisGuadalupe water-nymph
Distribution: Oregon south to Baja California, east to the Atlantic Coast.
Habitat: Fresh water.
Origin: Native
Flowers: June - August
ssp. guadalupensis – Guadalupe naias, common water nymph, Guadalupe nymph
Nama densaleafy nama, matted nama
Distribution: Adams County, Washington, south to California and east to Idaho and Nevada.
Habitat: Dry, sandy places in the deserts and foothills.
Origin: Native
Flowers: May - July
var. parviflora – matted nama
Nanozostera japonicadwarf eelgrass, narrow-bladed eelgrass
Origin: Introduced from Japan
Narcissus ×incomparabilisnonesuch daffodil, hybrid daffofil
Origin: Introduced to gardens from Europe
Narcissus poeticuspheasant's eye narcissus, poet's narcissus
Distribution: Occasional escape in lowland western Washington; occasional escape in areas throughout much of North America.
Habitat: Roadsides, fields and waste places.
Origin: Introduced from Europe
Flowers: April-May
Narcissus pseudonarcissusdaffofil
Distribution: Escaped and naturalized over much of eastern United States; occasional in western Washington, especially Island County.
Habitat: Roadsides, fields and waste places.
Origin: Introduced from Europe
Flowers: April - May
Nassella viridulagreen nassella
Origin: Native
Nasturtium microphyllumonerow watercress
Origin: Introduced
Nasturtium officinalewatercress
Distribution: Distributed on both sides of the Cascades in Washington; widely distributed throughout North America.
Habitat: Riparian zones and other wet areas.
Origin: Introduced from Europe
Flowers: May-September
Navarretia breweriBrewer's navarretia, yellow-flowered navarretia, yellow pincushion-plant
Distribution: East of the Cascades, Douglas County, Washington, south to California, east to Wyoming and Arizona
Habitat: Dry, open areas and meadows, from the foothills to moderate elevations in the mountains
Origin: Native
Flowers: May - July
Navarretia divaricata
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to Montana and Nevada.
Habitat: Dry, open places from the foothills to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
ssp. divaricata – mountain navarretia
Navarretia intertextaneedleleaf navarretia
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains and the Great Plains in the U.S.
Habitat: Open slopes, meadows and margins of pools, from the lowlands to moderate elevations in the mountains.
Origin: Native
Flowers: June-August
Navarretia leucocephalaleast navarretia
Distribution: East of the Cascades in Klickitat County, Washington, and Oregon, south to northern California.
Habitat: Moist meadows and vernal pools, and other moist, open places in the foothills and lowlands.
Origin: Native
Flowers: May - July
ssp. diffusa – diffuse navarretia
ssp. minima – least navarretia
Navarretia linearifolia
Distribution: Occurring in the southeastern corner of Washington; southeastern Washington south, in East Cascades, to California, east to Idaho, Nevada, Utah, and Colorado.
Habitat: Open, dry, seasonally moist soils at low to moderate elevations.
Origin: Native
Flowers: April-June
ssp. linearifolia – linear-leaved pincushion-plant
Navarretia propinquaGreat Basin navarretia
Origin: Native
Flowers: June - August
Navarretia sinistraAlva Day's pincushion-plant
Origin: Native
Navarretia squarrosaskunkweed
Distribution: West of the Cascades, from southern Vancouver Island, British Columbia, to California.
Habitat: Open places, mostly at low elevations.
Origin: Native
Flowers: June - September
Navarretia tagetinamarigold navarretia, northern navarretia, marigold pincushion-plant
Distribution: Klickitat County, Washington, south to California.
Habitat: Dry, open places at low elevations.
Origin: Native
Flowers: May - June
Nemophila brevifloraGreat Basin baby-blue-eyes
Distribution: Chiefly east of the Cascades in Washington; southern British Columbia to south to California, east to Colorado and Montana.
Habitat: Wooded slopes, thickets, and less often in open places, from the foothills to moderate elevations in the mountains.
Origin: Native
Flowers: April-July
Nemophila kirtleyiSnake Canyon baby-blue-eyes
Origin: Native
Flowers: April - May
Nemophila maculatababy blue eyes, five-spot
Distribution: Known in Washington only as a garden escape in King County; southwestern Oregon to southern California.
Habitat: In our area a garden escape to open areas; in its native range found in meadows, roadbanks, and woodland.
Origin: Introduced
Flowers: May-June
Nemophila menziesiibaby blue-eyes
Distribution: Known in Washington only as a garden escape in King County; southwestern Oregon to southern California.
Habitat: In our area a garden escape to open areas; in its native range found in meadows, roadbanks, and woodland.
Origin: Introduced from California and Oregon
Flowers: May-june
var. menziesii – baby blue-eyes
Nemophila parviflorasmall-flowered nemophila
Distribution: More common west of the Cascades in Washington; British Columbia south to California, east to Utah.
Habitat: Shady, wooded slopes, low to moderate elevations in the mountains.
Origin: Native
Flowers: April-July
var. austiniae – small-flowered nemophila
var. parviflora – small-flowered nemophila
Nemophila pedunculatameadow baby-blue-eyes, spreading nemophila
Distribution: Chiefly west of the Cascades in Washington; southern Vancouver Island, British Columbia, south to Baja California, east to Nevada and Idaho.
Habitat: Moist, open places, like meadows and bottom lands, in the foothills and lowlands, occasionally somewhat higher.
Origin: Native
Flowers: April-June
Neoholmgrenia andinablackfoot river suncup, obscure suncup
Distribution: East of the Cascades in Washington; British Columbia south to California, east to Montana and Utah.
Habitat: Dry hillsides and sagebrush scablands to the ponderosa pine forests of the foothills.
Origin: Native
Flowers: May-July
Neoholmgrenia hilgardiiHilgard's suncup
Distribution: East of the Cascades crest in Washington; Washington south to Klickitat County, Washington, and in Multanomah County, Oregon.
Habitat: Sagebrush deserts.
Origin: Native
Flowers: May-July
Neottia banksiananorthwestern twayblade
Distribution: Occurring on both sides of the Cascades in Washington; Alaska to California, east to Alberta and Wyoming.
Habitat: Moist forests and wet meadows, lowlands to subalpine elevations
Origin: Native
Flowers: June-August
Neottia borealisnorthern twayblade
Distribution: Known only from Okanogan County in Washington; Alaska south to Oregon, east to northern Rocky Mountains, east across Canada to the Atlantic Coast.
Habitat: Moist, rich coniferous forest understory.
Origin: Native
Flowers: June-July
Neottia convallarioidesbroad-lip twayblade
Distribution: Alaska to California and Arizona, east to Newfoundland to Maine across the northern tier of ststes
Habitat: Moist forests and wet meadows, lowlands to subalpine elevations
Origin: Native
Flowers: Late June - Early August
Neottia cordataheart-leaf twayblade
Distribution: Alaska to Greenland, south to California to North Carolina
Habitat: Usually in damp places and along streams, but occasionally in drier areas
Origin: Native
Flowers: June - August
Nepeta catariacatnip
Distribution: Chiefly east of the Cascades in Washington, but in scattered locations on the west side; widely established throughout North America.
Habitat: Roadsides, streambanks, waste places, sometimes in relatively undisturbed areas.
Origin: Introduced from Eurasia
Flowers: June-September
Nephrophyllidium crista-gallideer cabbage, deer-cabbage
Origin: Native
Neslia paniculataball mustard
Distribution: Occurring east of the Cascades crest in Washington; Alaska south to Washington, east across Canada and the northern U.S. to the Atlantic Ocean.
Habitat: Disturbed areas including fields, roadsides, and forest openings.
Origin: Introduced from Europe
Flowers: May-June
Nestotus stenophyllusnarrowleaf goldenweed
Distribution: Occurring east of the Cascades crest in Washington; Washington south to California, east to Idaho and Nevada.
Habitat: Dry, rocky soil, often with sagebrush.
Origin: Native
Flowers: May-July
Nicandra physalodesapple of Peru
Origin: Introduced
Nicotiana acuminatamanyflower
Origin: Introduced
Flowers: August - October
var. multiflora – wild tobacco
Nicotiana alata
Origin: Introduced
Nicotiana attenuatacoyote tobacco
Distribution: Wholly east of the Cascades, southern British Columbia south to California, east to Idaho and Texas.
Habitat: Dry, open plance, especially dry, sandy bottom lands.
Origin: Native
Flowers: June - September
Nicotiana sylvestris
Origin: Introduced
Nigella damascenadevil-in-the-bush
Distribution: Introduced across the northern states in the United States, and parts of southern Canada.
Habitat: Dump sites and waste ground.
Origin: Introduced from Eurasia
Flowers: May - September
Noccaea fendleriwild candytuft, Fendler's pennycress
Distribution: Occurring in the mountains throughout Washington; British Columbia south to California, east to Montana and New Mexico.
Habitat: Common in open, rocky areas at mid-elevations in the mountains.
Origin: Native
Flowers: May-August
ssp. glauca – wild candytuft
Nothocalais alpestrisalpine lake agoseris
Distribution: In the Cascades of Washington, mostly from Mt. Rainier south; Washington south to California.
Habitat: Open slopes and meadows from mid- to high elevations in the mountains.
Origin: Native
Flowers: June-August
Nothocalais troximoidesweevil prairie dandelion, false agoseris
Distribution: East of the Caascades crest in Washington; British Columbia south to California, east to Montana, Wyoming and Utah.
Habitat: Dry, open areas in lowlands and foothills, especially in lithosol.
Origin: Native
Flowers: April-June
Nothochelone nemorosawoodland-beardtongue
Distribution: Both sides of the Cascades, British Columbia to California
Habitat: Fairly dense woods to moist, open slopes at mid-elevations in the mountains
Origin: Native
Flowers: July - August
Nuphar polysepalayellow pond lily, spatterdock
Distribution: Widely distributed throughout Washington; Alaska south to northern California, east to Alberta and Colorado.
Habitat: Ponds, shallow lakes and sluggish streams.
Origin: Native
Flowers: May-August
Nuttallanthus texanusblue toadflax, Texas toadflax
Distribution: Occurring west of the Cascades crest in Washington; British Columbia south to California, east to Sasketchewan and across much of the U.S. except the upper Midwest and Northeast.
Habitat: Prairies, grasslands, and balds.
Origin: Native
Flowers: May-June
Nymphaea odorataAmerican water-lily, fragrant water-lily
Distribution: Widely distributed west of the Cascades in Washingtond, with scattered localities east of the Cascades; widely distributed througout central and eastern North America where native.
Habitat: Lowland ponds and lakes both sides of the Cascades.
Origin: Introduced
Flowers: June-October
ssp. odorata – American water lily, white water lily
Nymphaea tetragonapygmy water-lily
Origin: Native
Flowers: June - August
Nymphoides peltatayellow floatingheart
Distribution: Introduced as an ornamental, occasionally escaping in the Pacific Northswest.
Habitat: Ponds or sluggish streams.
Origin: Introduced
Flowers: June-September