Oxytropis maydelliana Trautv.
Maydell's locoweed (Maydell's oxytrope)
Fabaceae (Pea family)

Introduction to Vascular Plants

Photograph

© Ryan Batten     (Photo ID #23896)


Map

E-Flora BC Static Map

Distribution of Oxytropis maydelliana
Click here to view the full interactive map and legend

Species Information

General:
Perennial herb from a branching stem-base densely covered with old, brownish leaf-stalks and stipules; tufted, to 15 cm tall.
Leaves:
Basal, odd-pinnately compound, 3-14 cm long; leaflets 9 to 21, egg-shaped to lance-oblong, 3-15 mm long, sparsely soft-hairy; stipules 12-20 mm long, long-tailed at the tip, becoming brown with age, fused and joined to the leaf-stalk below, the free margins fringed with long hairs.
Flowers:
Inflorescence a somewhat head-like raceme of 5 to 12 pea-like flowers, the racemes 1-4 cm long on erect to ascending stalks 4-15 cm long; corollas yellow to whitish, 13-17 mm long; calyces short-cylindric, woolly with dark and light hairs, the tube 5-6 mm long, the teeth 1.5-3 mm long.
Fruits:
Pods, egg-shaped to ellipsoid, abruptly beaked, 1.5-2.5 cm long, soft-hairy, incompletely 2-chambered.

SourceThe Illustrated Flora of British Columbia

Illustration

If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.

Ecology

Ecological Framework for Oxytropis maydelliana

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

Avg

Min

Max

Elevation (metres)
1615 1505 1700
Slope Gradient (%)
23 2 49

Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]

291 0 340
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 1 3
Modal Nutrient Regime
Class
C
# of field plots
 species was recorded in:
5
Modal BEC Zone Class
BAFA

All BEC Zones (# of stations/zone) species was recorded in

BAFA(3), SWB(2)

Habitat and Range

Moist to mesic meadows, turfy tundra, rocky ridges and slopes in the montane to alpine zones; rare in N BC; amphiberingian, N to AK, YT and NT and E to N PQ; E Asia.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Oxytropis campestris subsp. melanocephala Hook.
Oxytropis campestris var. glabrata Hook.
Oxytropis glabrata (Hook.) A. Nels.
Oxytropis maydelliana subsp. melanocephala (Hook.) Porsild