Flora of North America species comparison

1(–5), decumbent to erect, apically or basally coarse-branched, herbaceous, leafy.

1–20+, procumbent or the central ascending, branched, herbaceous, leafy.

subpinnate, pinnate, or palmate;

stipules glandlike or absent; petiolate;

rachis 5–12 mm, flattened;

leaflets 2–4, often 1 or 2 on one side and 2 terminal, blades elliptic to obovate (lateral sometimes asymmetric), margins denticulate or entire, apex acute to obtuse, surfaces hirsute.

pinnate to subpalmate;

stipules glandlike; short-petiolate;

rachis 2–5 mm, flattened;

leaflets 3–5, blades obovate to oblanceolate or broadly obovate to obcordate, apex usually obtuse to acute, sometimes mucronulate, or retuse to cordate, surfaces gray-puberulent.

1 or 2-flowered.

(1 or)2–7-flowered.

± sessile;

bract absent.

curved to erect, 25–75(–95) mm, longer than leaves;

bract absent or 1(–3)-foliolate, distal.

5–8 mm;

calyx 3–5 mm, tube hirsute or glabrous, lobes subulate, ± denticulate;

corolla cream-white to pale yellow, banner purple-tinged, keel tip yellowish, claws shorter to slightly longer than calyx tube, banner ascending, wings ± equaling keel, with deep, triangular auricle;

style curved, glabrous.

12–20 mm;

calyx 3.5–5 mm, tube puberulent, lobes narrow lanceolate;

corolla yellow to cream, often suffused with red, claws shorter than calyx tube, banner ascending 45–90°, wings ± equaling to longer than keel;

style nearly straight, glabrous.

persistent, solitary or paired, exserted, erect or spreading, tawny, straight, compressed, slightly constricted, not septate, widely oblong, 8–20 × 3 mm, leathery, apex abruptly downward angled and curved, dehiscent, smooth, margins often undulate-verrucose, strigose or glabrous.

subpersistent, exserted, erect to ascending, tawny to brown, straight, turgid, not constricted, ± septate, oblong, 15–35(–40) × 3–7 mm, leathery, apex short-beaked, dehiscent, smooth, margins smooth, thickened, strigillose.

(2 or)3(or 4), gray, faintly mottled, asymmetrically ± angular-obovoid, flattened, smooth.

3–6, brown, ± mottled, oblong, ± rugose to smooth.

= 12.