UW Burke Herbarium species comparison

Leaves trifoliate, the petioles considerable longer than the stipules;

leaflets oblong-elliptic to oblanceolate, 1-3 cm. long, serrulate 2/3 their length;

petiole of the terminal leaflet at least twice as long as those of the lateral leaflets;

stipules ovate, 4-9 mm. long, attached to the petiole over half their length, the free tip about the same length as the width of the attached portion.

Leaves trifoliate, leaflets ovate to obovate or obcordate, 1-3 cm. long, serrulate;

stipules 5-20 mm. long, tapering.

Inflorescence of 30- to 100-flowered heads, up to 12 mm. thick, on axillary peduncles longer than the leaves;

flowers 4-6 mm. long, yellow, pea-like;

calyx glabrous, half the length of the corolla, the upper 2 teeth about half as long as the lower 3, the latter slightly longer than the calyx tube;

banner flared and spreading, much longer than the wings and keel.

Inflorescence of many-flowered heads, 1.5-2.5 cm. broad and long, on axillary peduncles shorter to several times longer than the leaves;

flowers pea-like, white to reddish, 5-9 mm. long, reflexed, the pedicels 1-5 mm. long;

calyx less than half as long as the corolla, mostly glabrous, the 5 teeth awl-shaped, equal to the tube;

banner nearly erect.

Pod 1- or 2-seeded, much longer than the attached style.

Pod 1-3 seeded.