Vascular Plants

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Scientific names beginning with N:
21 genera
44 species, 13 subspecies and varieties
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Najas canadensisCanadian water nymph
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.
Najas guadalupensis
Distribution: Oregon south to Baja California, east to the Atlantic Coast.
Habitat: Fresh water.
ssp. guadalupensis – Guadalupe naias, common water nymph, Guadalupe nymph
Nama densum
Distribution: Adams County, Washington, south to California and east to Idaho and Nevada.
Habitat: Dry, sandy places in the deserts and foothills.
var. parviflorum – matted nama
Nanozostera japonicadwarf eelgrass, narrow-bladed eelgrass
Narcissus ×incomparabilishybrid daffofil
Narcissus incomparabilisnonesuch daffodil
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.
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.
Nasturtium officinalewatercress
Distribution: Distributed on both sides of the Cascades in Washington; widely distributed throughout North America.
Habitat: Riparian zones and other wet areas.
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
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.
ssp. divaricata – mountain navarretia
Navarretia intertexta
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.
ssp. intertexta – needleleaf navarretia
ssp. propinqua – Great Basin navarretia
Navarretia leucocephala
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.
ssp. diffusa – diffuse navarretia
ssp. minima – IMF4], least navarretia [H&C
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.
ssp. linearifolia – smooth-leaved gilia, linear-leaved pincushion-plant, smooth-leaved gilia [H&C], miniature gily-flower [KZ]
Navarretia sinistraAlva Day’s pincushion-plant
Navarretia squarrosaskunkweed [H&C]
Distribution: West of the Cascades, from southern Vancouver Island, British Columbia, to California.
Habitat: Open places, mostly at low elevations.
Navarretia tagetinamarigold navarretia, northern navarretia, marigold pincushion-plant
Distribution: Klickitat County, Washington, south to California.
Habitat: Dry, open places at low elevations.
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.
Nemophila kirtleyiSnake Canyon baby-blue-eyes
Nemophila maculatafive-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.
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.
var. menziesii – baby blue-eyes
Nemophila parviflora
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.
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.
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.
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.
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.
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.
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.
Nicotiana acuminatamanyflower, wild tobacco
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.
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.
Noccaea fendleri
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.
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.
Nothocalais troximoidesfalse agoseris, weevil prairie dandelion
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.
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
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.
Nuttallanthus canadensisCanada toadflax, old field toadflax
Distribution: Occurring in scattered locations in Washington; Washington south to Oregon; widely distributed in eastern half of North America.
Habitat: Disturbed areas including roadsides, wastelots, and fields.
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.
Nymphaea odorata
Distribution: Widely distributed west of the Cascades in Washington, with scattered localities east of the Cascades; widely distributed throughdout central and eastern North America where native.
Habitat: Lowland ponds and lakes.
ssp. odorata – American water lily, white water lily
Nymphaea tetragonapygmy water-lily
Nymphoides peltatayellow floatingheart
Distribution: Introduced as an ornamental, occasionally escaping in the Pacific Northswest.
Habitat: Ponds or sluggish streams.