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, 12 subspecies and varieties
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Nabalus alatuswestern white lettuce, western rattlesnakeroot
Distribution: Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; Alaska to Oregon, east to Alberta, Idaho, and Montana.
Habitat: Streambanks, forest edge, and moist, shaded places from the lowlands to middle elevations in the mountains.
Origin: Native
Flowers: July-September
Najas canadensisCanadian water-nymph
Distribution: Occurring on both sides of the Cascades crest in Washington; Great Lakes region and eastern North America.
Habitat: Freshwater and slightly brackish water habitats.
Origin: Native
Flowers: June-August
Najas flexilisslender naias, nodding water-nymph, slender water-nymph
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to Montana, Colorado, Utah, and Arizona, east across the northern Great Plains to the Great Lakes region and eastern North America.
Habitat: Fresh to slightly brackish water.
Origin: Native
Flowers: April-August
Growth Duration: annual
Najas guadalupensisGuadalupe water-nymph
Distribution: Occurring west of the Cascades crest in Washington; Washington to Baja California, east to the Atlantic Coast.
Habitat: Fresh water habitats.
Origin: Native
Flowers: June-August
Growth Duration: annual
ssp. guadalupensis – Guadalupe naias, common water-nymph, Guadalupe water-nymph
Nama densaleafy nama, matted nama
Distribution: Occurring east of the Cascades crest in Washington; Douglas County, Washington to California, east to Montana, Wyoming, Colorado, Nevada, and Arizona.
Habitat: Dry, sandy places in the deserts and foothills.
Origin: Native
Flowers: May-July
var. parviflora – matted nama
Nanozostera japonicadwarf eelgrass, narrow-bladed eelgrass
Distribution: Occurring in coastal counties in Washington; Alaska to California along the immediate coast.
Habitat: Coastal mudflats from high tide line to sub-tidal zone.
Origin: Introduced from Japan
Flowers: April-September
Narcissus ×incomparabilisnonesuch daffodil, hybrid daffofil
Distribution: Occurring west of the Cascades crest in lowland western Washington and in the Columbia River Gorge; southwestern British Columbia to southwestern Oregon
Habitat: Fields, roadsides, forest edge, and other disturbed areas at low elevation.
Origin: Introduced to gardens from Europe
Flowers: March-April
Growth Duration: perennial
Narcissus poeticuspheasant's eye narcissus, poet's narcissus
Distribution: Occurring west of the Cascades crest in lowland western Washington; northwestern Washington to southwestern Oregon.
Habitat: Roadsides, fields and waste places.
Origin: Introduced from Europe
Flowers: April-May
Growth Duration: perennial
Narcissus pseudonarcissusdaffofil
Distribution: Occurring west of the Cascades crest in lowland western Washington; Washington to California, east to Idaho; also in eastern North America.
Habitat: Roadsides, fields, pastures, forest edge, and waste places.
Origin: Introduced from Europe
Flowers: March-April
Growth Duration: perennial
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
Growth Duration: perennial
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
Growth Duration: annual
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
Growth Duration: annual
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
Growth Duration: annual
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
Growth Duration: annual
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
Growth Duration: annual
ssp. linearifolia – linear-leaved pincushion-plant
Navarretia propinquaGreat Basin navarretia
Distribution: Occurring east of the Cascades crest in Washington; south-central British Columbia to California, east to the Rocky Mountains.
Habitat: Seasonally moist sagebrush desert plains, ponderosa pine forest openings, and meadows at low to middle elevations.
Origin: Native
Flowers: June-August
Navarretia sinistraAlva Day's pincushion-plant
Distribution: Occurring east of the Cascades crest in central Washington; north-central Washington to California, east to southern Idaho, Utah, and Colorado.
Habitat: Meadows and open or lightly wooded slopes, from the foothills to middle elevations in the mountains.
Origin: Native
Flowers: May-July
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
Growth Duration: annual
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
Growth Duration: annual
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
Growth Duration: annual
Nemophila kirtleyiSnake Canyon baby-blue-eyes
Origin: Native
Flowers: April - May
Growth Duration: annual
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
Growth Duration: annual
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
Growth Duration: annual
var. menziesii – baby blue-eyes
Nemophila parviflorasmall-flowered nemophila
Distribution: Occurring on both sides of the Cascades crest in Washington, but more common west of the crest; British Columbia to California, east to Idaho and Utah.
Habitat: Shady, wooded slopes, forest openings and edge, from low to middle elevations in the mountains.
Origin: Native
Flowers: April-July
Growth Duration: annual
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
Growth Duration: annual
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
Growth Duration: annual
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
Growth Duration: annual
Neottia banksiananorthwestern twayblade
Distribution: Occurring on both sides of the Cascades crest 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: Occurring east of the Cascades crest in north-central and northeastern Washington; Alaska 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: Occurring on both sides of the Cascades crest in the forested and mountainous areas of Washington; Alaska to California, east to the Rocky Mountains, and from the Great Lakes region to northeastern North America.
Habitat: Moist forests and wet meadows, from low elevations to the subalpine.
Origin: Native
Flowers: June-August
Neottia cordataheart-leaf twayblade
Distribution: Occurring on both sides of the Cascades crest in Washington, but chiefly west of the crest; Alaska to California, east to the Rocky Mountains, further east across Canada to the Great Lakes region and northeastern North America.
Habitat: Humus-rich, often damp, forest understory, sometimes along streams, from low to middle elevations.
Origin: Native
Flowers: May-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
Growth Duration: perennial
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
Growth Duration: annual
Nestotus stenophyllusnarrowleaf goldenweed
Distribution: Occurring east of the Cascades crest in central Washington; Washington to California, east to Idaho and Nevada.
Habitat: Dry, rocky soil, often with sagebrush.
Origin: Native
Flowers: May-July
Growth Duration: perennial
Nicandra physalodesapple of Peru
Origin: Introduced
Nicotiana acuminatamanyflower
Origin: Introduced
Flowers: August - October
Growth Duration: annual
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
Growth Duration: annual
Nicotiana sylvestris
Origin: Introduced
Nigella damascenadevil-in-the-bush, love-in-a-mist
Distribution: Known sparingly in Washington from lowland areas west of Cascades crest; southwestern British Columbia to California, east across northern U.S. to eastern North America.
Habitat: Yard waste dump sites, disturbed open ground, and other sites were plants escape from cultivation.
Origin: Introduced from Eurasia
Flowers: May-September
Growth Duration: annual
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
Growth Duration: perennial
ssp. glauca – wild candytuft
Nothocalais alpestrisalpine lake agoseris
Distribution: Occurring on both sides of the Cascades crest in Washington, mostly from Mt. Rainier south; Washington to California.
Habitat: Open slopes and meadows from middle to high elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: perennial
Nothocalais troximoidesweevil prairie dandelion, false agoseris
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Montana, Wyoming and Utah.
Habitat: Dry, open areas from and foothills, especially in lithosol.
Origin: Native
Flowers: April-June
Growth Duration: perennial
Nothochelone nemorosawoodland beardtongue
Distribution: Occurring chiefly west of the Cascades crest and in the Olympic Mountains in Washington; southwestern British Columbia to California.
Habitat: Forest understory at middle elevations to moist forest edge and slopes in the subalpine.
Origin: Native
Flowers: June-August
Growth Duration: perennial
Nuphar polysepalayellow pond lily, spatterdock
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to Northwest Territory, Alberta, and the Rocky Mountain States.
Habitat: Ponds, shallow lakes, oxbows, and sluggish streams from low to middle elevations.
Origin: Native
Flowers: May-August
Growth Duration: perennial
Nuttallanthus canadensisCanada toadflax, old field toadflax
Distribution: Occurring west of the Cascades crest in Washington; southwestern British Columbia and Puget Trough islands to western Oregon and California.
Habitat: Prairies, balds, and other open areas at low elevations.
Origin: Native
Flowers: May-June
Growth Duration: annual
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
Growth Duration: annual
Nymphaea odorataAmerican water-lily, fragrant water-lily
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east to central and eastern North America, where native.
Habitat: Lowland ponds and lakes.
Origin: Introduced from central and eastern North America
Flowers: June-October
Growth Duration: perennial
Nymphaea tetragonapygmy water-lily
Origin: Native
Flowers: June - August
Growth Duration: perennial
Nymphoides peltatayellow floatingheart
Distribution: Occurring in scattered locations on both sides of the Cascades crest in Washington; southern British Columbia to California, also from Arizona and Texas northeastward to northeastern North America.
Habitat: Reservoirs, lakes, ponds, and slow-moving streams.
Origin: Introduced
Flowers: June-September
Growth Duration: perennial