Flora of North America species comparison

1–30+, ascending, branched (distal branches ± flexuous and herbaceous), stiff (± woody), remotely leafy.

1–20+, procumbent or decumbent, branched, herbaceous, leafy, proximally covered by small, persistent leaves.

irregularly pinnate or palmate;

stipules evanescent, glandlike, ovoid-deltoid; short-petiolate or sessile;

rachis 0–5 mm, not flattened;

leaflets 3–5, blades obovate to oblanceolate, apex obtuse to emarginate, surfaces strigose.

pinnate to subpalmate (distal);

stipules conic;

proximal short-petiolate or sessile, distal subsessile to short-petiolate;

rachis 0–4 mm, sometimes flattened;

leaflets (3 or)4 or 5(or 6), blades obovate to oblanceolate (proximal ± orbiculate), apex acute to rounded, surfaces villous to tomentose.

1–4(or 5)-flowered.

1–3(–5)-flowered.

ascending to erect, slender, often flexuous, 20–60(–130) mm, much longer than leaves;

bract absent or unifoliolate, subtending umbel.

ascending or reflexed, upturned, (5–)20–50 mm, longer than leaves;

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

12–20(–24) mm;

calyx 6.5–10 mm, tube ± densely strigillose, lobes subulate, abaxial pair sometimes connate behind banner;

corolla yellow, sometimes ± suffused with red or orange, banner often red-backed, claws ± equaling calyx tube, banner remaining implicate, ± ascending to 45°, wings longer than keel;

style corneously thickened and laterally grooved proximally, straight, glabrous.

(10–)13–22 mm;

calyx 4.3–7 mm, tube densely villous, lobes subulate;

corolla cream to orange-yellow, rose-tinted, claws shorter than calyx tube, banner obliquely ascending, wings longer than banner and keel, auriculate, spurred;

style ± straight, glabrous.

persistent, exserted, erect or divergent, yellow-brown to reddish, straight, turgid, not constricted, not septate, linear-oblong to oblong, 20–40(–45) × 3–5 mm, leathery, apex short-beaked, dehiscent, smooth, margins smooth, keeled, usually glabrate, rarely sparsely strigillose.

persistent, exserted, erect, reddish brown, straight, turgid, not constricted, imperfectly septate, linear-oblong, 15–30 × (2–)2.5–3 mm, ± leathery, apex short-beaked, dehiscent, smooth, margins smooth, strigillose.

18–30, light brown, ± mottled, subglobose, finely granulose or papillose.

5–8, olive green to brown, ± mottled, oblong, smooth.

= 14.

= 14.