Boechera
rockcress
19 species
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Boechera atrorubens – dark-red-flowered rockcress
Distribution: Occurring east of the Cascades crest in central Washington; Washington to north-central Oregon.
Habitat: Sagebrush desert to ponderosa pine forest openings and meadows, from low to middle elevations.
Origin: Native
Flowers: April-June
Growth Duration: Biennial, Perennial
Distribution: Occurring east of the Cascades crest in central Washington; Washington to north-central Oregon.
Habitat: Sagebrush desert to ponderosa pine forest openings and meadows, from low to middle elevations.
Origin: Native
Flowers: April-June
Growth Duration: Biennial, Perennial
Boechera calderi – Calder's rockcress
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the northern and central Rocky Mountains.
Habitat: Subalpine ridges and meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the northern and central Rocky Mountains.
Habitat: Subalpine ridges and meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Boechera cascadensis – Cascades rockcress
Distribution: Occurring east of the Cascades crest in central and southeastern Washington; also known from Baker County, Oregon.
Habitat: Rock outcroppings, often of volcanic origin.
Origin: Native
Flowers: May-June
Distribution: Occurring east of the Cascades crest in central and southeastern Washington; also known from Baker County, Oregon.
Habitat: Rock outcroppings, often of volcanic origin.
Origin: Native
Flowers: May-June
Boechera cusickii – Cusick's rockcress
Distribution: Occurring east of the Cascades crest in Washington; east-central Washington to Nevada, east to Idaho.
Habitat: Sagebrush flats to open Ponderosa pine forests, often on lithosol.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; east-central Washington to Nevada, east to Idaho.
Habitat: Sagebrush flats to open Ponderosa pine forests, often on lithosol.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
Boechera divaricarpa – spreading-pod rockcress
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: From middle elevations to subalpine areas in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Biennial, Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: From middle elevations to subalpine areas in the mountains.
Origin: Native
Flowers: June-August
Growth Duration: Biennial, Perennial
Boechera grahamii – Graham's rockcress
Distribution: Occurring east of the Cascades crest in northeastern Washington; Alaska to Washington, east across Canada and the northern U.S. to New England.
Habitat: Rocky and sandy soil, prairies to open forest.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in northeastern Washington; Alaska to Washington, east across Canada and the northern U.S. to New England.
Habitat: Rocky and sandy soil, prairies to open forest.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Boechera lemmonii – Lemmon's rockcress
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Alpine meadows, ridges and talus slopes.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains.
Habitat: Alpine meadows, ridges and talus slopes.
Origin: Native
Flowers: July-September
Growth Duration: Perennial
Boechera lyallii – Lyall's rockcress, murry's rockcress
Distribution: Widely distributed in the mountains throughout Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Subalpine to alpine ridges, cliffs, and drier meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Widely distributed in the mountains throughout Washington; British Columbia to California, east to the Rocky Mountains.
Habitat: Subalpine to alpine ridges, cliffs, and drier meadows.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Boechera microphylla – little-leaf rockcress, small-leaved rockcress
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to eastern Oregon, east to Montana and Wyoming.
Habitat: Low montane to subalpine.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to eastern Oregon, east to Montana and Wyoming.
Habitat: Low montane to subalpine.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Boechera paddoensis – Mt. Adams rockcress
Distribution: Occurring east of the Cascades crest from the Wenatchee Mountains to the Mt. Adams area; Washington to northeastern Oregon.
Habitat: Alpine slopes and talus.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest from the Wenatchee Mountains to the Mt. Adams area; Washington to northeastern Oregon.
Habitat: Alpine slopes and talus.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Boechera pauciflora – Columbia rockcress, few-flowered rockcress, small-flowered rockcress
Distribution: Occurring east of the Cascades crest in Washington; British Columbia o California, east to Montana and Utah.
Habitat: Sagebrush and ponderosa pine openings.
Origin: Native
Flowers: April-June
Growth Duration: Biennial, Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia o California, east to Montana and Utah.
Habitat: Sagebrush and ponderosa pine openings.
Origin: Native
Flowers: April-June
Growth Duration: Biennial, Perennial
Boechera paupercula – small-flowered rockcress
Distribution: Occurring west of the Cascades crest in the Olympic Mountains in Washington; Washington to California, east to Idaho and Wyoming.
Habitat: Rocky slopes and talus, subalpine to alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Distribution: Occurring west of the Cascades crest in the Olympic Mountains in Washington; Washington to California, east to Idaho and Wyoming.
Habitat: Rocky slopes and talus, subalpine to alpine.
Origin: Native
Flowers: June-August
Growth Duration: Perennial
Boechera pendulocarpa – dangle-pod rockcress
Distribution: Occurring chiefly east of the Cascades crest in Washington; Yukon Territory to California, east to Montana, Wyoming, and Utah.
Habitat: Sagebrush, ponderosa pine openings, and open slopes at middle elevations.
Origin: Native
Flowers: May-August
Growth Duration: Biennial, Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; Yukon Territory to California, east to Montana, Wyoming, and Utah.
Habitat: Sagebrush, ponderosa pine openings, and open slopes at middle elevations.
Origin: Native
Flowers: May-August
Growth Duration: Biennial, Perennial
Boechera polyantha – many-flowered rockcress
Distribution: Occurring east of the Cascades crest in Washington; south-central British Columbia to northeastern Oregon, east to western Montana and southwestern Idaho.
Habitat: Open, rocky or gravelly areas from low to middle elevations
Origin: Native
Flowers: May-June
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; south-central British Columbia to northeastern Oregon, east to western Montana and southwestern Idaho.
Habitat: Open, rocky or gravelly areas from low to middle elevations
Origin: Native
Flowers: May-June
Growth Duration: Perennial
Boechera puberula – Blue Mountain rockcress, hoary rockcress
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to southern Idaho and Utah.
Habitat: Rocky slopes and hillsides among sagebrush or open woodlands.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; Washington to California, east to southern Idaho and Utah.
Habitat: Rocky slopes and hillsides among sagebrush or open woodlands.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Boechera retrofracta – reflexed rockcress
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, and east across Canada to Ontario.
Habitat: Sagebrush desert to forest openings at middle elevations.
Origin: Native
Flowers: April-June
Growth Duration: Biennial, Perennial
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, and east across Canada to Ontario.
Habitat: Sagebrush desert to forest openings at middle elevations.
Origin: Native
Flowers: April-June
Growth Duration: Biennial, Perennial
Boechera sparsiflora – elegant rockcress, slender rockcress
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Nevada, and Utah.
Habitat: From sagebrush plains to forest openings and meadows at moderate elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to California, east to Idaho, Nevada, and Utah.
Habitat: From sagebrush plains to forest openings and meadows at moderate elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Boechera stricta – Canadian rockcress, Drummond's rockcress
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska o California, east to the Rocky Mountains, and east along the northern U.S. and southern Canada to the Atlantic Coast.
Habitat: Open areas in the forest from middle elevations to the subalpine.
Origin: Native
Flowers: May-July
Growth Duration: Biennial, Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska o California, east to the Rocky Mountains, and east along the northern U.S. and southern Canada to the Atlantic Coast.
Habitat: Open areas in the forest from middle elevations to the subalpine.
Origin: Native
Flowers: May-July
Growth Duration: Biennial, Perennial
Boechera suffrutescens – woody rockcress
Distribution: Occurring east of the Cascades crest in central and southeastern Washington; central Washington to California, east to central Idaho.
Habitat: Rocky slopes and dry ridges in ponderosa pine forest openings and sagebrush desert.
Origin: Native
Flowers: May-July
Growth Duration: Biennial, Perennial
Distribution: Occurring east of the Cascades crest in central and southeastern Washington; central Washington to California, east to central Idaho.
Habitat: Rocky slopes and dry ridges in ponderosa pine forest openings and sagebrush desert.
Origin: Native
Flowers: May-July
Growth Duration: Biennial, Perennial
