Arabidopsis lyrata subsp. kamchatica

(Fischer ex de Candolle) O’Kane & Al-Shehbaz

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
Treatment appears in FNA Volume 7. Treatment on page 450. Mentioned on page 449.

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


V7 684-distribution-map.gif

Alta., B.C., N.W.T., Sask., Yukon, Alaska, Wash., ne Asia.


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


Lower Taxa

Ihsan A. Al-Shehbaz +
(Fischer ex de Candolle) O’Kane & Al-Shehbaz +
Arabis lyrata var. kamchatica +
Alta. +, B.C. +, N.W.T. +, Sask. +, Yukon +, Alaska +, Wash. +  and ne Asia. +
50-2000 m +
Gravelly slopes, forests, gravel bars, high-elevation scree and talus, roadsides +
Flowering Jun–Jul. +
Arabis ambigua var. glabra +, Arabis ambigua var. intermedia +, Arabis kamchatica +, Arabis lyrata var. glabra +, Arabis lyrata var. intermedia +, Arabis lyrata subsp. kamchatica +, Arabis lyrata var. occidentalis +, Arabis occidentalis +  and Cardaminopsis kamchatica +
Arabidopsis lyrata subsp. kamchatica +
Arabidopsis lyrata +
subspecies +