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Introduction
The Yukon lupine is endemic to northern BC, the Yukon and Alaska, with most plants found in southwestern Yukon and three disjunct locations found in northwest Alaska (BC Conservation Data Centre 2010). It is a densely silky hairy, perennial, blue (blue-purple) flowered species. The BC Species and Ecosystem Explorer Species Summary provides a comparison with similar species. This species shows preference for sandy and gravelly habitats, including sand dunes, river terraces, floodplains and sandy woods (BC Conservation Data Centre 2010).
References:
BC Conservation Data Centre. 2010. Species Summary: Lupinus kuschei. BC Ministry of Environment. Available Online.
Species Information
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General: Perennial herb from a woody stem-base; entire plant except the corollas densely silvery silky-hairy; stems decumbent to erect, few to several, tufted, 15-50 cm long/tall.
Leaves: Alternate, palmately compound, stalks of lower leaves 4-15 cm long, 2-3 times longer than the upper leaves; leaflets 5 to 9, elliptic-oblanceolate, pointed at the tip, 1.5-5 cm long.
Flowers: Inflorescence a dense, stalked, terminal raceme, 3-10 cm long, of whorled pea-like flowers; corollas blue to bluish purple, 10-13 mm long, the banner nearly circular with a yellow central patch; calyces 2-lipped, the upper lip 4-6 mm long, 2-lobed, the slender lower lip 5-7 mm long, 3-toothed.
Mesic to dry, sandy, gravelly or rocky openings, and open lodgepole pine forests in the montane zone, also alpine pumice fields (Mt. Edziza); rare in N BC; endemic to BC and YT.
The table below shows the species-specific information calculated from original data (BEC database) provided by the BC Ministry of Forests and Range. (Updated August, 2013)
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