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
50 species, 12 subspecies and varieties
50 species, 12 subspecies and varieties
Show only taxa with photos
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Index to genera:
Nabalus, Najas, Nama, Nanozostera, Narcissus, Nassella, Nasturtium, Navarretia, Nemophila, Neoholmgrenia, Neottia, Nepeta, Nephrophyllidium, Neslia, Nestotus, Nicandra, Nicotiana, Nigella, Noccaea, Nothocalais, Nothochelone, Nuphar, Nuttallanthus, Nymphaea, NymphoidesNabalus hastatus – western white lettuce, western rattlesnake-root
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
Growth Duration: Perennial
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
Growth Duration: Perennial
Najas canadensis – Canadian water-nymph
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Washington, east to Idaho, also in the Great Lakes region and eastern North America.
Habitat: Freshwater and slightly brackish water habitats.
Origin: Native
Flowers: June-August
Growth Duration: Annual
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Washington, east to Idaho, also in the Great Lakes region and eastern North America.
Habitat: Freshwater and slightly brackish water habitats.
Origin: Native
Flowers: June-August
Growth Duration: Annual
Najas flexilis – nodding water-nymph, slender water-nymph, wavy 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
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 guadalupensis – Guadalupe 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
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 densa – leafy 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
Growth Duration: Annual
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
Growth Duration: Annual
• var. parviflora – matted nama
Nanozostera japonica – dwarf eelgrass, narrow-bladed eelgrass
Distribution: Occurring west of the Cascades crest 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
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest 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
Growth Duration: Perennial
Narcissus ×incomparabilis – hybrid daffodil, nonesuch daffodil
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
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 poeticus – pheasant'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
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 pseudonarcissus – daffodil
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
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 microphyllum – onerow watercress
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to Oregon, east to Idaho, Montana, and Wyoming; also in the northeastern U.S.
Habitat: Shallow water, ditches, and marshy areas.
Origin: Introduced from Europe
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to Oregon, east to Idaho, Montana, and Wyoming; also in the northeastern U.S.
Habitat: Shallow water, ditches, and marshy areas.
Origin: Introduced from Europe
Flowers: May-July
Growth Duration: Annual
Nasturtium officinale – watercress
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Riparian zones and other wet areas.
Origin: Introduced from Europe
Flowers: May-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across North America to the Atlantic Coast.
Habitat: Riparian zones and other wet areas.
Origin: Introduced from Europe
Flowers: May-September
Growth Duration: Perennial
Navarretia breweri – Brewer's navarretia, yellow-flowered navarretia, yellow pincushion-plant
Distribution: Occurring east of the Cascades crest in Washington; central Washington to California, east to Wyoming and Arizona.
Habitat: Dry, open areas and meadows, from the foothills to middle elevations in the mountains
Origin: Native
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington; central Washington to California, east to Wyoming and Arizona.
Habitat: Dry, open areas and meadows, from the foothills to middle elevations in the mountains
Origin: Native
Flowers: May-July
Growth Duration: Annual
Navarretia divaricata – divaricate navarretia, mountain navarretia, divaricate pincushion-plant, mountain pincushion-plant
Distribution: Occurring east of the Cascades crest in Washington; British Columbia 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
Distribution: Occurring east of the Cascades crest in Washington; British Columbia 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 intertexta – needle-leaf navarretia
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Washington, east to Idaho.
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
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to Washington, east to Idaho.
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 leucocephala – least navarretia
Distribution: Occurring east of the Cascades crest in Washington; central Washington to California, east to Idaho, Utah, and Nevada.
Habitat: Moist meadows and vernal pools, and other moist, open places in the foothills and lowlands.
Origin: Native
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington; central Washington to California, east to Idaho, Utah, and Nevada.
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 – linear-leaved navarretia
Distribution: Occurring east of the Cascades crest in Washington in the southeastern corner; southeastern Washington to California, east to Nevada.
Habitat: Open, dry, seasonally moist soils at low to moderate elevations.
Origin: Native
Flowers: April-June
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington in the southeastern corner; southeastern Washington to California, east to Nevada.
Habitat: Open, dry, seasonally moist soils at low to moderate elevations.
Origin: Native
Flowers: April-June
Growth Duration: Annual
• ssp. linearifolia – linear-leaved navarretia, linear-leaved pincushion-plant
Navarretia propinqua – Great Basin navarretia, near 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
Growth Duration: Annual
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
Growth Duration: Annual
Navarretia sinistra – Alva Day's pincushion-plant
Distribution: Occurring east of the Cascades crest in central Washington; 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
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in central Washington; 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
Growth Duration: Annual
Navarretia squarrosa – skunkweed
Distribution: Occurring west of the Cascades crest in Washington; southern Vancouver Island and southwestern British Columbia to California.
Habitat: Open, seasonally moist places, mostly at low elevations.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Distribution: Occurring west of the Cascades crest in Washington; southern Vancouver Island and southwestern British Columbia to California.
Habitat: Open, seasonally moist places, mostly at low elevations.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Navarretia tagetina – marigold navarretia, northern navarretia, marigold pincushion-plant
Distribution: Occurring east of the Cascades crest in Washington in Klickitat County; south-central Washington to California.
Habitat: Dry, open places at low elevations.
Origin: Native
Flowers: May-June
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington in Klickitat County; south-central Washington to California.
Habitat: Dry, open places at low elevations.
Origin: Native
Flowers: May-June
Growth Duration: Annual
Nemophila breviflora – Great Basin baby-blue-eyes
Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to California, east to Montana and Colorado.
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
Distribution: Occurring chiefly east of the Cascades crest in Washington; southern British Columbia to California, east to Montana and Colorado.
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 kirtleyi – Snake Canyon baby-blue-eyes
Distribution: Occurring east of the Cascades crest in southeastern Washington; southeastern Washington to southeastern Oregon, east to central Idaho.
Habitat: Rocky slopes, generally in partial shade, at low elevations.
Origin: Native
Flowers: April - May
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in southeastern Washington; southeastern Washington to southeastern Oregon, east to central Idaho.
Habitat: Rocky slopes, generally in partial shade, at low elevations.
Origin: Native
Flowers: April - May
Growth Duration: Annual
Nemophila maculata – baby blue eyes, five-spot
Distribution: Occurring occasionally as an escape on both sides of the Cascades crest in Washington; 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
Flowers: May-June
Growth Duration: Annual
Distribution: Occurring occasionally as an escape on both sides of the Cascades crest in Washington; 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
Flowers: May-June
Growth Duration: Annual
Nemophila menziesii – baby blue-eyes
Distribution: Occurring chiefly west of the Cascades crest in Washington, where largely known as a garden escape; native from 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
Distribution: Occurring chiefly west of the Cascades crest in Washington, where largely known as a garden escape; native from 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 parviflora – small-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
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 pedunculata – meadow baby-blue-eyes, spreading nemophila
Distribution: Occurring chiefly west of the Cascades crest in Washington; southern Vancouver Island, British Columbia to Baja California, east to Idaho and Nevada.
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
Distribution: Occurring chiefly west of the Cascades crest in Washington; southern Vancouver Island, British Columbia to Baja California, east to Idaho and Nevada.
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 andina – blackfoot river suncup, obscure suncup
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, and Utah.
Habitat: Dry hillsides and sagebrush scablands to the ponderosa pine forests of the foothills.
Origin: Native
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, Wyoming, 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 hilgardii – Hilgard's suncup
Distribution: Occurring east of the Cascades crest in Washington; Okanogan County to Klickitat County, Washington, and historic (1919) in Multanomah County, Oregon.
Habitat: Sagebrush deserts.
Origin: Native
Flowers: May-July
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington; Okanogan County to Klickitat County, Washington, and historic (1919) in Multanomah County, Oregon.
Habitat: Sagebrush deserts.
Origin: Native
Flowers: May-July
Growth Duration: Annual
Neottia banksiana – northwestern 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
Growth Duration: Perennial
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
Growth Duration: Perennial
Neottia borealis – northern 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
Growth Duration: Perennial
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
Growth Duration: Perennial
Neottia convallarioides – broad-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
Growth Duration: Perennial
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
Growth Duration: Perennial
Neottia cordata – heart-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
Growth Duration: Perennial
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
Growth Duration: Perennial
Nepeta cataria – catnip
Distribution: Occurring chiefly east of the Cascades crest in Washington; 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
Distribution: Occurring chiefly east of the Cascades crest in Washington; 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-galli – deer cabbage, deer-cabbage
Distribution: Occurring west of the Cascades crest along the coast in Washington; Alaska to Oregon; Japan.
Habitat: Bogs, swamps, and wet meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest along the coast in Washington; Alaska to Oregon; Japan.
Habitat: Bogs, swamps, and wet meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
• ssp. crista-galli – deer cabbage
Neslia paniculata – ball mustard
Distribution: Occurring east of the Cascades crest in Washington; Alaska 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
Distribution: Occurring east of the Cascades crest in Washington; Alaska 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 stenophyllus – narrowleaf 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
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
Nicotiana acuminata – manyflower
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada.
Habitat: Sandy or gravelly stream banks.
Origin: Introduced from South America
Flowers: August-October
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to Nevada.
Habitat: Sandy or gravelly stream banks.
Origin: Introduced from South America
Flowers: August-October
Growth Duration: Annual
• var. acuminata – wild tobacco
Nicotiana attenuata – coyote tobacco
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to the Rocky Mountains and Texas.
Habitat: Dry, open plance, especially dry, sandy bottom lands.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in Washington; southern British Columbia to California, east to the Rocky Mountains and Texas.
Habitat: Dry, open plance, especially dry, sandy bottom lands.
Origin: Native
Flowers: June-September
Growth Duration: Annual
Nigella damascena – devil-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
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 fendleri – wild candytuft, Fendler's pennycress
Distribution: Occurring on both sides of the Cascades crest in Washington; Washington to California, east to the Rocky Mountains and Texas.
Habitat: Common in open, rocky areas from middle elevations to the subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Washington to California, east to the Rocky Mountains and Texas.
Habitat: Common in open, rocky areas from middle elevations to the subalpine.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
• ssp. glauca – wild candytuft
Noccaea perfoliata
Distribution: Occurring east of the Cascades crest in southeastern Washington; southeastern Washington and western Idaho, also in the central and eastern U.S.
Habitat: Roadsides, pastures, and other open, disturbed ground.
Origin: Introduced from Europe
Flowers: March-May
Growth Duration: Annual
Distribution: Occurring east of the Cascades crest in southeastern Washington; southeastern Washington and western Idaho, also in the central and eastern U.S.
Habitat: Roadsides, pastures, and other open, disturbed ground.
Origin: Introduced from Europe
Flowers: March-May
Growth Duration: Annual
Nothocalais alpestris – alpine 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
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 troximoides – weevil 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
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 nemorosa – woodland beardtongue
Distribution: Occurring on both sides 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
Distribution: Occurring on both sides 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 polysepala – yellow 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
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 canadensis – Canada 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
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 texanus – blue toadflax, Texas toadflax
Distribution: Occurring west of the Cascades crest in Washington; British Columbia 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
Distribution: Occurring west of the Cascades crest in Washington; British Columbia 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 odorata – American 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
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 tetragona – pygmy water-lily
Distribution: Known historically in Washington from west of the Cascades crest in Whatcom County; Alaska to British Columbia, east to Northwest Territories, Alberta, Montana, and Manitoba.
Habitat: Pond and lake margins, where emergent.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Known historically in Washington from west of the Cascades crest in Whatcom County; Alaska to British Columbia, east to Northwest Territories, Alberta, Montana, and Manitoba.
Habitat: Pond and lake margins, where emergent.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Nymphoides peltata – yellow 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
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
