E-Flora BC: Electronic Atlas of the Flora of British Columbia

Oxytropis huddelsonii A.E. Porsild
Huddelson's locoweed (Huddelson's oxytrope)
Fabaceae (Pea family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #66465)

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Distribution of Oxytropis huddelsonii
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Species Information

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Perennial herb from a stout taproot and branching stem-base covered with persistent stipules, tufted or cushion-forming, to 4 cm tall.
Basal, odd-pinnately compound, 1.5-5 cm long, the leaf axis purple, white soft- hairy; leaflets 7 to 13, lanceolate to elliptic or oblong, 3-6 mm long, soft-hairy on the upper surface, nearly glabrous below, the leaf margins rolled under; stipules straw-coloured, firm, with blunt, triangular free parts, glabrous or nearly so except the margins, which are fringed with long hairs and lack club-shaped structures.
Inflorescence of 1 to 2 pea-like flowers on a 1- to 4-cm long stalk; corollas pink-purple, 11-15 mm long; calyces bell-shaped, appressed dark-stiff-hairy, the tube 4-6 mm long, the triangular teeth 1-2 mm long.
Pods, 1-2 cm long, ellipsoid with hooked beak, unstalked or nearly so, glabrous or minutely dark stiff-hairy, 1-chambered, lying on the ground when mature.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to dry ridgecrests, meadows, heath, tundra and solifluction slopes in the alpine zone; infrequent in NW BC; N to AK and YT.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Oxytropis huddelsonii

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)

Site Information
Value / Class




Elevation (metres) 1669 1733 1850
Slope Gradient (%) 3 11 18
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
50 49 270
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 2 4
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: BAFA(3)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Taxonomic and Nomenclatural Links

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General References