Arabidopsis
mouse-ear cress, thale cress
2 species
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Arabidopsis kamchaticalyreleaved cress, kamchatka rockcress, lyre-leaved rockcress, western rockcress
Distribution: Occurring only in northwestern Washington; Alaska to Washington, east to Northwest Territory and Sasketchewan.
Habitat: Subalpine and alpine scree and talus slopes.
Origin: Native
Flowers: July-September
Arabidopsis thalianamouse-ear cress, thalecress
Distribution: Widely distributed througout Washington; widely distributed throughout North America.
Habitat: Disturbed areas, particularly near cities and towns.
Origin: Introduced from Eurasia
Flowers: March-May