Flora of North America species comparison

1–5+, decumbent to erect, branched, herbaceous, often striate, leafy.

1–20+, prostrate to ascending, branched, ± woody, wiry or stout, often remotely leafy.

irregularly pinnate;

stipules glandlike, conic; petiolate or sessile;

rachis 2–3.5(–5.5) mm, not flattened;

leaflets 7–9(–12), blades usually elliptic to obovate, sometimes ovate, apex acute to obtuse, surfaces sparsely to densely puberulent or villosulous to strigillose.

irregularly subpalmate;

stipules glandlike;

sessile or subsessile to short-petiolate;

rachis 0–9 mm, sometimes flattened;

leaflets 3–5, blades obovate to oblanceolate, apex obtuse to acute, or mucronulate, surfaces ± strigillose.

3–9(–11)-flowered.

(1 or)2–8-flowered.

ascending or spreading, 10–80 mm, longer than leaves;

bract 1(–3)-foliolate, distal.

ascending, slender, sometimes secondarily branched, 1–25 mm, usually shorter, sometimes longer, than leaves;

bract absent or (when pedunculate) unifoliolate, distal.

12–25 mm;

calyx (4.5–)5.5–10 mm, tube villosulous, lobes subulate;

corolla greenish white, white or yellow, fading to rose or reddish, claws shorter than calyx tube, banner ascending 45–90°, wings longer than banner and keel;

style nearly straight or basally curved, glabrous.

6–8 mm;

calyx 3–5 mm, tube strigillose, lobes triangular to deltate;

corolla yellow, tinged red, fading orange, claws longer than calyx tube, banner implicate-ascending, wings shorter than keel (and other petals);

style gradually or abruptly upcurved, glabrous.

persistent, exserted, brown, linear-oblong, straight, turgid, sometimes slightly constricted, incompletely septate, 25–42(–70) × 2–3 mm, leathery, apex short hook-beaked, dehiscent, smooth, margins smooth, thickened, glabrate.

persistent, moderately to well exserted, ascending to divergent, tawny to brown, strongly arched, curved to 90°, sometimes nearly straight, turgid, not constricted, not septate, linear-oblong, 6–8 × 1–2 mm, leathery, apex beak recurved 80–360° or irregularly contorted, nearly as long as body, indehiscent, transversely ridged, margins keeled, rugose, strigillose or glabrous.

5–9, olive to reddish brown, mottled, broadly ovoid, smooth.

1 or 2, olive to reddish brown, mottled, elongate, curved, smooth.