familyBrassicaceae
genusArabidopsis
speciesArabidopsis lyrata
subspeciesArabidopsis lyrata subsp. kamchatica
Arabidopsis lyrata subsp. kamchatica
Novon 7: 326. 1997.
Basionym: Arabis lyrata var. kamchatica Fischer ex de Candolle Syst. Nat. 2: 231. 1821
Synonyms: Arabis ambigua var. glabra de Candolle Arabis ambigua var. intermedia de Candolle Arabis kamchatica (S. Watson) A. Nelson Arabis lyrata var. glabra (de Candolle) M. Hopkins Arabis lyrata var. intermedia (de Candolle) Farwell Arabis lyrata subsp. kamchatica (Fischer ex de Candolle) Hultén Arabis lyrata var. occidentalis S. Watson Arabis occidentalis Cardaminopsis kamchatica
Biennials or perennials; caudex unbranched or with a root crown, often slender. Basal leaves: (petiole often glabrous); blade margins lyrate or lyrate-pinnatifid, terminal lobes distinct, (surfaces glabrous or sparsely pubescent). Petals (4–)5–5.5(–6) mm. Fruits 1.2–1.5(–1.8) mm wide; style 0–0.5 mm. 2n = 16, 32.
Phenology: Flowering Jun–Jul.
Habitat: Gravelly slopes, forests, gravel bars, high-elevation scree and talus, roadsides
Elevation: 50-2000 m
Distribution
Alta., B.C., N.W.T., Sask., Yukon, Alaska, Wash., ne Asia.
Discussion
G. A. Mulligan (1996) treated subsp. kamchatica as a species of Arabis; R. C. Rollins (1993) treated it as a variety of A. lyrata.
Selected References
None.
Lower Taxa
None.