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

Acmispon parviflorus
small-flowered birds-foot trefoil
Fabaceae (Pea family)

Introduction to Vascular Plants

© Virginia Skilton  Email the photographer   (Photo ID #13119)

E-Flora BC Static Map
Distribution of Acmispon parviflorus
Click here to view our interactive map and legend
Details about map content are available here
Click on the map dots to view record details.

Species Information

Click on the image below to view an expanded illustration for this species.

Annual herb; stems prostrate to erect, 10-30 cm long/tall, slender, glabrous or sparsely appressed-hairy.
Alternate, pinnately compound; leaflets 3 to 6, oblong to elliptic, blunt-tipped, 4-12 mm long, often glaucous; stipules tiny, gland-like.
Inflorescence of single, pea-like flowers on stalks from the leaf axils, the stalks 3-20 mm long, with a 2- to 3-parted bract just below the flower; corollas pale yellow or salmon, reddish-tinged, quickly fading, 4-6 mm long; calyces 2 mm long, hairy, the linear-lanceolate lobes shorter than the tube.
Pods, oblong, 1.5-3 cm long, hairless, wavy-margined, constricted between the 4 to 9 seeds.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Moist to mesic meadows, grassy bluffs, rocky slopes and sandy clearings in the lowland zone; locally frequent in extreme SW BC; S to CA.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Acmispon parviflorus

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) 31 177 382
Slope Gradient (%) 0 35 210
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
23 183 360
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
0 1 3
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: CDF(21), CWH(2)

Synonyms and Alternate Names

Lotus micranthus Benth.

Taxonomic and Nomenclatural Links

Additional Photo Sources

General References