Astragalus lentiginosus Douglas ex Hook.
freckled milk-vetch (freckled milkvetch)
Fabaceae (Pea family)

Introduction to Vascular Plants

Photograph

© Jim Riley     (Photo ID #65884)


Map

E-Flora BC Static Map

Distribution of Astragalus lentiginosus
Click here to view the full interactive map and legend

SUBTAXA PRESENT IN BC

Astragalus lentiginosus var. lentiginosus

Species Information

General:
Perennial herb from a stout taproot and much-branched stem-base; stems spreading to erect, 10-40 cm long/tall, mostly unbranched, glabrous.
Leaves:
Alternate, stalked, pinnately compound, somewhat fleshy; leaflets 9 to 19, oblanceolate to egg-shaped, 5-15 mm long, glabrous at least above; stipules lanceolate, not joined, 2-5 mm long.
Flowers:
Inflorescence a compact, axillary raceme of 8 to 25 spreading-ascending, pea-like flowers, the racemes to 3 cm long, on stalks shorter than the leaves; corollas white to pinkish, 8-18 mm long, the banner longer than the wings and keel; calyces hairy, 3-7 mm long, the awl-shaped teeth 1/2 as long as the tube.
Fruits:
Pods, egg- to lance-shaped, tapering to a beak, unstalked, inflated, glabrous to short-hairy, membranous to leathery, curved, 1-3 cm long, not flattened, 2-chambered.
Notes:
Barneby (1964) treats this species as a complex of 34 variants. We do not know enough about the range of variation in BC material to partition it among infraspecific taxa, even if a practical taxonomy existed. Therefore we are treating this entity in the broad sense.

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.

USDA Species Characteristics

Flower Colour:
Yellow
Blooming Period:
Late Spring
Fruit/Seed characteristics:
Colour: Black
Present over the Summer
Source:  The USDA

Ecology

Ecological Framework for Astragalus lentiginosus

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)
704 400 808
Slope Gradient (%)
42 20 75

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

186 144 260
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
2 2 4
Modal Nutrient Regime
Class
C
# of field plots
 species was recorded in:
5
Modal BEC Zone Class
BG

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

BG(4), PP(1)

Habitat and Range

Dry grasslands and shrublands in the steppe and montane zones; rare in SC BC; S to ID, WA and OR.

SourceThe Illustrated Flora of British Columbia

Synonyms

Synonyms and Alternate Names:
Astragalus lentiginosus var. salinus (Howell) Barneby