Tropicos | Name - Arabidopsis lyrata subsp. kamchatica (Fisch. ex DC.) O'Kane & Al-Shehbaz

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Arabidopsis lyrata subsp. kamchatica (Fisch. ex DC.) O'Kane & Al-Shehbaz

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6c. Arabidopsis lyrata (Linnaeus) O’Kane & Al-Shehbaz subsp. kamchatica (Fischer ex de Candolle) O’Kane & Al-Shehbaz, Novon 7: 326. 1997; Arabidopsis kamchatica (Fischer ex de Candolle) K. Shimizu & Kudoch, Acta Phytotax. Geobot. 56: 167. 2005; Arabis lyrata Linnaeus var. kamchatica Fischer ex de Candolle, Syst. Nat. 2: 231. 1821; Arabis kamchatica (Fischer ex de Candolle) Ledebour, Fl. Ross. 1: 121. 1842; A. lyrata subsp. kamchatica (Fischer ex de Candolle) Hultén, Fl. Aleut. Isl. 202. 1937; Cardaminopsis kamchatica (Fischer ex de Candolle) O. E. Schulz in Engler & Prantl, Nat. Pflanzenfam., ed. 2, 17B: 541. 1936. TYPE: Russia, Kamchatka, Fischer s.n. (holotype, LE).

Arabis ambigua de Candolle var. glabra de Candolle, Syst. Nat. 2: 231. 1821; A. kamchatica var. glabra (de Candolle) N. Busch, Fl. Sib. Orient. Est. 4: 468. 1926; A. lyrata Linnaeus var. glabra (de Candolle) M. Hopkins, Rhodora 39: 93. 1937. TYPE: “in Kamchatka et insulis Kurilensis” (holotype, G-DC).

Arabis ambigua de Candolle var. intermedia de Candolle, Syst. Nat. 2: 231. 1821; A. kamchatica (Fischer ex de Candolle) Ledebour var. intermedia (de Candolle) N. Busch, Fl. Sib. Orient. Est. 4: 468. 1926; A. lyrata Linnaeus var. intermedia (de Candolle) Farwell, Annual Rep. Michigan Acad. Sci. 19: 256. 1917. Type: “insulis Kurilensibus,” (holotype, G-DC).

Arabis kawasakiana Makino, Bot. Mag. (Tokyo) 27: 24. 1913; Arabidopsis kamchatica (Fischer ex de Candolle) K. Shimizu & Kudoch subsp. kawasakiana (Makino) K. Shimizu & Kudoh, Acta Phytotax. Geobot. 56: 170. 2005. TYPE: Japan. Prov. Ise: Yokkaichi, M. Kawasaki s. n. (holotype, MAK).

Arabis lyrata var. occidentalis S. Watson in A. Gray, Syn. Fl. N. Amer. 1: 159. 1895; A. occidentalis (S. Watson) A. Nelson, Univ. Wyoming Publ. 3: 111. 1937. Type: not designated.

Arabis morrisonensis Hayata, J. Coll. Sci. Imp. Univ. Tokyo 30(1): 29. 1911. TYPE: Taiwan, monte Morrison, 13,094 ft., Nov 1905, S. Nagasawa 680 (holotype, TI!).

Sisymbrium tilesii Ledebour, Mem. Acad. Imp. Sci. St. Pétersbourg Hist. Acad. 5: 548. 1815; Arabis tilesii (Ledebour) Karavaev ex V.N. Voroshilov, Byull. Glavn. Bot. Sada (Moscow) 134: 36. 1984. TYPE: Kamtschatka, 1806, Tilesius s.n. (holotype, LE?; isotype, MW).

Herbs, perennial, with slender or rarely branched caudex. Basal leaves lyrate-pinnatifid; petioles glabrous or rarely very sparsely pilose; lateral lobes 1–5 on each side, entire of few toothed; terminal lobe considerably larger than lateral lobes. Petals 4–5(–5.5) mm. Fruits (1–)1.2–1.5 mm wide; styles obsolete or distinct, stout, rarely to 0.5 mm long, distinctly wider than long. 2n = 32.

Flowering: Jun–Jul.

Habitats: gravelly slopes, forests, alpine regions, roadsides, flooded areas, scree, talus.

Elevation: 0–3500 m.

Distribution: Canada (Alberta, British Columbia, Northwest Territories, Saskatchewan, Yukon), N China, Japan, Korea, Russia (E Siberia, Far East), Taiwan, United States (Alaska).