Micranthes
saxifrage
15 species
1 subspecies and varieties
1 subspecies and varieties
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Micranthes apetala – Tiny swamp saxifrage, western swamp saxifrage
Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho and Montana.
Habitat: Vernally moist meadows at low to middle elevations.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho and Montana.
Habitat: Vernally moist meadows at low to middle elevations.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
Micranthes ferruginea – rusty saxifrage
Distribution: Occurring in the Cascades and Olympic Mountains, and in the mountains of northeastern in Washington; Alaska to south California, east to Idaho, Montana, and Wyoming.
Habitat: Open, moist, often rocky areas, from low to middle elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring in the Cascades and Olympic Mountains, and in the mountains of northeastern in Washington; Alaska to south California, east to Idaho, Montana, and Wyoming.
Habitat: Open, moist, often rocky areas, from low to middle elevations in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Micranthes fragosa – Clayton's saxifrage
Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho.
Habitat: Wet slopes and cliffs, often near watercourses.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho.
Habitat: Wet slopes and cliffs, often near watercourses.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Micranthes gormanii – Gorman's saxifrage
Distribution: Occurring west of the Cascades crest in the Lower Columbia River Gorge; southwestern Washington to adjacent Oregon.
Habitat: Wet rocky ledges and slopes.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in the Lower Columbia River Gorge; southwestern Washington to adjacent Oregon.
Habitat: Wet rocky ledges and slopes.
Origin: Native
Flowers: May-June
Growth Duration: Perennial
Micranthes idahoensis – Idaho saxifrage
Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho and Montana.
Habitat: Exposed areas, ledges, and open slopes.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to Oregon, east to Idaho and Montana.
Habitat: Exposed areas, ledges, and open slopes.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Micranthes integrifolia – Columbian saxifrage, swamp saxifrage, whole-leaf saxifrage
Distribution: Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; British Columbia to California.
Habitat: Prairies, grassy slopes and vernally moist areas, sea level to subalpine.
Origin: Native
Flowers: March-July
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest and east in the Columbia River Gorge in Washington; British Columbia to California.
Habitat: Prairies, grassy slopes and vernally moist areas, sea level to subalpine.
Origin: Native
Flowers: March-July
Growth Duration: Perennial
Micranthes lyallii – Lyall's saxifrage, red-stemmed saxifrage
Distribution: Occurring on both sides of the Cascades crest in northern Washington; Alaska to Washington, east to Alberta, Idaho, and Montana.
Habitat: Wet, gravelly meadows and along streams and ponds at high elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in northern Washington; Alaska to Washington, east to Alberta, Idaho, and Montana.
Habitat: Wet, gravelly meadows and along streams and ponds at high elevations.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Micranthes nelsoniana – dotted saxifrage
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon, east to Nunavut and Alberta.
Habitat: Montane wet areas and streambanks from low to middle elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to Oregon, east to Nunavut and Alberta.
Habitat: Montane wet areas and streambanks from low to middle elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
• var. cascadensis – Cascades dotted saxifrage, Nelson's saxifrage
Micranthes nidifica – Columbia saxifrage, swamp saxifrage
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Montana and Wyoming.
Habitat: Prairies and wet banks to subalpine meadows.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Montana and Wyoming.
Habitat: Prairies and wet banks to subalpine meadows.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Micranthes occidentalis – mountain saxifrage, redwool saxifrage, western saxifrage
Distribution: Both sides of the Cascades in Washington; Alaska south to Oregon and Nevada, east to Saskatachewan and south to New Mexico.
Habitat: Dry to wet open areas, rock crevices, meadows, and streambanks from moderate to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Distribution: Both sides of the Cascades in Washington; Alaska south to Oregon and Nevada, east to Saskatachewan and south to New Mexico.
Habitat: Dry to wet open areas, rock crevices, meadows, and streambanks from moderate to high elevations in the mountains.
Origin: Native
Flowers: May-August
Growth Duration: Perennial
Micranthes odontoloma – brook saxifrage, streambank saxifrage
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Streambanks, lake shores and wet meadows from low elevations in the mountains to the alpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Streambanks, lake shores and wet meadows from low elevations in the mountains to the alpine.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Micranthes oregana – bog saxifrage, Oregon saxifrage
Distribution: Both sides of the Cascades crest in Washington; Washington to California, east to Alberta, Montana, Idaho, Nevada, and Colorado.
Habitat: Bogs, streambanks and wet meadows at mid-elevations in the mountains.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Distribution: Both sides of the Cascades crest in Washington; Washington to California, east to Alberta, Montana, Idaho, Nevada, and Colorado.
Habitat: Bogs, streambanks and wet meadows at mid-elevations in the mountains.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Micranthes rufidula – rusty-hair saxifrage
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California.
Habitat: Wet open areas, ledges, rock outcroppings from moderate to high elevations in the mountains.
Origin: Native
Flowers: February-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California.
Habitat: Wet open areas, ledges, rock outcroppings from moderate to high elevations in the mountains.
Origin: Native
Flowers: February-August
Growth Duration: Perennial
Micranthes tischii – Olympic saxifrage
Distribution: Endemic to Washington, where known from the Olympic Mountains and Washington Pass in Okanogan County.
Habitat: Forested ledges and rock crevices where moist.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Endemic to Washington, where known from the Olympic Mountains and Washington Pass in Okanogan County.
Habitat: Forested ledges and rock crevices where moist.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Micranthes tolmiei – alpine saxifrage, Tolmie's alpine saxifrage, Tolmie's saxifrage
Distribution: Occurring in the Olympic and Cascade mountains in Washington; Alaska south to California, east to Idaho, Montana, Nevada and Utah.
Habitat: Mountain meadows, scree, and rock crevices at moderate to high elevations.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
Distribution: Occurring in the Olympic and Cascade mountains in Washington; Alaska south to California, east to Idaho, Montana, Nevada and Utah.
Habitat: Mountain meadows, scree, and rock crevices at moderate to high elevations.
Origin: Native
Flowers: June-September
Growth Duration: Perennial
