Micranthes
saxifrage
15 species
1 subspecies and varieties
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Micranthes apetalaTiny swamp saxifrage, western swamp saxifrage
Distribution: East of the Cascades crest in Washington; Washington south to Oregon, east to Idaho and Montana.
Habitat: Vernally moist meadows at low to moderate elevations.
Origin: Native
Flowers: March-May
Micranthes ferruginearusty saxifrage
Distribution: In the Olympics and Cascades mountains in Washington; Alaska to south California, east to Idaho, Montana, and Wyoming.
Habitat: Open, moist, often rocky areas, low to mid-elevations in the mountains.
Origin: Native
Flowers: June-August
Micranthes fragosaClayton's saxifrage
Distribution: East of Cascades in Washington, south to Oregon and east to Idaho.
Habitat: Wet slopes and cliffs, often near watercourses.
Origin: Native
Flowers: April-June
Micranthes gormaniiGorman's saxifrage
Origin: Native
Micranthes idahoensisIdaho saxifrage
Distribution: Washington and Oregon, east to Montana and Idaho.
Habitat: Exposed areas, ledges, and open slopes.
Origin: Native
Flowers: April-July
Micranthes integrifoliaColumbian saxifrage, swamp saxifrage, Whole-leaf saxifrage
Distribution: Occurring on both sides of the Cascades in Washington; British Columbia south to California.
Habitat: Prairies, grassy slopes and vernally moist areas, sea level to subalpine.
Origin: Native
Flowers: March-July
Micranthes lyalliiLyall's saxifrage, red-stemmed saxifrage
Distribution: On both sides of the Cascades in Washington; Alaska south to the north Cascades of Washington, east to western Alberta, and south in the Rocky Mountains to Montana and Idaho.
Habitat: Wet, gravelly meadows and along streams and ponds at high elevations.
Origin: Native
Flowers: July-September
Micranthes nelsonianadotted saxifrage, Nelson's saxifrage
Distribution: Both sides of the Cascades in Washington; British Columbia to Oregon.
Habitat: Montane wet areas and streambanks from low to medium elevations.
Origin: Native
Flowers: May-July
var. cascadensis – dotted saxifrage, Nelson's saxifrage
Micranthes nidificaColumbia saxifrage, swamp saxifrage
Distribution: East of the crest of the Cascades, British Columbia south to northeast California, east to Idaho and Nevada.
Habitat: Prairies and wet banks to subalpine meadows.
Origin: Native
Flowers: April - July
Micranthes occidentalismountain 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
Micranthes odontolomabrook saxifrage, streambank saxifrage
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to California, east to the Rocky Mountains.
Habitat: Streambanks, lake shores and wet meadows from the lower mountains to the alpine.
Origin: Native
Flowers: June-September
Micranthes oreganabog saxifrage, Oregon saxifrage
Distribution: Both sides of the Cascades crest in Washington; Washington south 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
Micranthes rufidularusty-hair saxifrage
Distribution: Both sides of the Cascades in Washington; British Columbia south to California.
Habitat: Wet open areas, ledges, rock outcroppings from moderate to high elevations in the mountains.
Origin: Native
Flowers: May-August
Micranthes tischiiOlympic saxifrage
Distribution: Olympic Peninsula endemic
Habitat: Forested ledges and rock crevices where moist.
Origin: Native
Flowers: May-July
Micranthes tolmieialpine 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