Flora of North America species comparison

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

1–20, procumbent to ascending, branched basally, 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.

irregularly pinnate;

stipules glandlike;

sessile or subsessile to short-petiolate;

rachis 8–20(–35) mm, flattened;

leaflets (3–)5–7, blades unequal, obovate to ± orbiculate, apex obtuse, surfaces glabrous or ± strigillose.

1 or 2-flowered.

1–5-flowered.

± sessile;

bract absent.

erect then spreading or declined, 3–15 mm, shorter to longer than leaves, sometimes branched, slender;

bract absent or 1–3-foliolate, subtending umbel.

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.

2.5–8(–11) mm;

calyx 1.2–4.5 mm, tube strigose to villous, lobes lanceolate;

corolla bright yellow or orange-yellow, claws shorter than to equaling calyx tube, banner implicate-ascending, wings symmetric, equaling or shorter than keel;

style curved, 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.

persistent, exserted, ascending or spreading, tawny to brown, straight or curved, ± compressed, scarcely or distinctly constricted, not septate, narrowly oblong, 10–30 × 3–4 mm, leathery, apex short hook-beaked, dehiscent, margins smooth, thin, glabrous or sparsely strigillose.

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

5–9, brown to dark olive green, not mottled, oblong-ovoid, smooth.

= 12.