Astragalus vexilliflexus Sheldon
bent-flowered milk-vetch (bentflower milkvetch)
Fabaceae (Pea family)
Introduction to Vascular Plants
bent-flowered milk-vetch (bentflower milkvetch)
Fabaceae (Pea family)
Introduction to Vascular Plants
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SUBTAXA PRESENT IN BC
Astragalus vexilliflexus var. vexilliflexus
Species Information
General:
Perennial herb from a woody taproot and branching stem-base; stems several, slender, tufted, branched, prostrate to ascending, often mat-forming, 10-30 cm long, with short, stiff, appressed, unbranched hairs.
Leaves:
Alternate, pinnately compound, 1.5-3 cm long; leaflets 7 to 13, narrowly elliptic to oblanceolate, pointy-tipped, 5-12 mm long, densely short-appressed-hairy, at least on the lower surface; stipules lanceolate, 2-4 mm long, fused half their length.
Flowers:
Inflorescence a loose, axillary raceme of 3 to 10 spreading, pea-like flowers, the racemes on stalks equalling or shorter than the leaves; corollas yellowish-white to purplish, 5-8 mm long, the banner much longer than the wings and keel; calyces about 1/2 as long as the corollas, the linear-lanceolate teeth about 2/3 as long as the tube.
Fruits:
Pods, oblong-elliptic, nodding, unstalked, 6-11 mm long, membranous, flattened, short-appressed-hairy, 1-chambered.
Ecology
Ecological Framework for Astragalus vexilliflexus
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)
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) |
2272 | 1770 | 2661 |
| Slope
Gradient (%) |
56 | 30 | 81 |
|
Aspect (degrees) |
195 | 79 | 300 |
| Soil
Moisture Regime (SMR) [0 - very xeric; 4 - mesic; 8 - hydric] |
1 | 0 | 3 |
| Modal
Nutrient Regime
Class |
B | ||
| #
of field plots species was recorded in: |
23 | ||
| Modal
BEC Zone Class |
ESSF | ||
|
All BEC Zones (# of stations/zone) species was recorded in |
BAFA(1), ESSF(16), IMA(6) | ||
|
Source:
Klinkenberg 2013
|
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