Boechera
rockcress
20 species
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Boechera atrorubensblack-flowered rockcress
Distribution: East of the Cascades crest in Washington; Washington south to Oregon.
Habitat: Sagebrush and ponderosa pine country.
Origin: Native
Flowers: April-June
Boechera calderiCalder's rockcress
Origin: Native
Boechera cascadensisCascades rockcress
Origin: Native
Boechera cusickiiCusick's rockcress
Distribution: East of the Cascades in Washington; east-central Washington south to Nevada, east to central Idaho.
Habitat: Sagebrush flats to open Ponderosa pine forests, often on lithosol.
Origin: Native
Flowers: March-May
Boechera divaricarpaspreadingpod rockcress
Distribution: Occurring on both sides of the Cascades crest in Washington, and in the Olympic Mountains; Alaska south to California, east to the Rocky Mountains.
Habitat: From middle elevations to subalpine areas in the mountains.
Origin: Native
Flowers: June-August
Boechera drepanoloba
Origin: Native
Boechera grahamiiGraham's rockcress
Origin: Native
Boechera lemmoniiLemmon's rockcress
Distribution: Occurring in the Olympic Mountains and East Cascades in Washington; Alaska south to California, east to the Rocky Mountains.
Habitat: Alpine meadows, ridges and talus slopes.
Origin: Native
Flowers: July-September
Boechera lyalliiLyall'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
Boechera microphyllalittleleaf rockcress, small-leaved rockcress
Distribution: Occurring in Washington east of the Cacades crest; British Columbia south to eastern Oregon, east to Montana and Wyoming.
Habitat: Low montane to subalpine.
Origin: Native
Flowers: April-July
Boechera paddoensisMt. Adams rockcress
Distribution: Occurring east of the Cascades crest in the Mt. Adams area; Washington south to northeastern Oregon.
Habitat: Alpine slopes and talus.
Origin: Native
Flowers: July-August
Boechera paucifloraColumbia rockcress, few-flowered rockcress, small-flowered rockcress
Distribution: East of the Cascades crest in Washington; British Columbia south to California, east to Montana and Utah.
Habitat: Sagebrush and ponderosa pine country.
Origin: Native
Flowers: April-June
Boechera paupercula
Origin: Native
Boechera pendulocarpadanglepod rockcress
Distribution: Chiefly east of the Cascades crest in Washington; Yukon Territory south to California, east to Montana, Wyoming, and Utah.
Habitat: From sagebrush and ponderosa pine slopes to well up in the mountains.
Origin: Native
Flowers: May-August
Boechera polyantha
Origin: Native
Boechera puberulaBlue Mountain rockcress, hoary rockcress
Origin: Native
Boechera retrofracta
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska south to California, east to the Rocky Mountains, and east across Canada to Ontario.
Habitat: Sagebrush-steppe to forest openings at middle elevations.
Origin: Native
Flowers: April-June
Boechera sparsifloraelegant rockcress, slender rockcress
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south 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
Boechera strictaCanadian rockcress, Drummond's rockcress
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska south to 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 at mid-elevations to sub-alpine meadows.
Origin: Native
Flowers: May-July
Boechera suffrutescenswoody rockcress
Origin: Native