Flora of North America species comparison

1–20+, procumbent or decumbent to ascending, branched basally, herbaceous, slender, leafy.

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

irregularly pinnate;

stipules glandlike;

subsessile;

rachis 3–20 mm, flattened;

leaflets 4–10, blades unequal, obovate to oblanceolate to linear-oblong or oblong, apex acute to obtuse or truncate, surfaces ± densely tomentose to glabrate.

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.

1–3-flowered.

1–5-flowered.

ascending or reflexed, upturned, 3–25 mm, shorter to longer than leaves (often elongated in fruit);

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

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–)6–10(–12) mm;

calyx 3–5.5 mm, tube ± sparsely strigillose or glabrous, lobes subulate;

corolla yellow (sometimes banner orangish abaxially), turning orange or reddish, claws ± equaling calyx tube, banner implicate-ascending or remaining closely implicate, wings longer than keel;

style corneously thickened, marked by color, straight, puberulent or 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, exserted, erect or divergent, brown, straight to ± curved distally, compressed, not or slightly constricted, incompletely septate, linear-oblong, 10–35 × 2–3 mm, thinly leathery, apex initially short-beaked, dehiscent, smooth, margins smooth, thin, glabrous or ± strigose.

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.

5–10, greenish to brown, ± mottled, ovoid to cuboid or globose, rugulose or granular.

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