Flora of North America species comparison

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

1–20+, usually procumbent (when small, unbranched, erect or ascending), diffusely branched proximally, herbaceous, 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 pinnate;

stipules glandlike or absent; petiolate;

rachis 5–15 mm, flattened;

leaflets (3 or)4(or 5), usually 2 on one side and 2 terminal, blades elliptic to obovate (lateral sometimes asymmetric), apex usually obtuse, sometimes acute, surfaces sparsely long-ciliate, pubescent.

3–9(–11)-flowered.

1-flowered.

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

bract 1(–3)-foliolate, distal.

ascending, 0–2 mm, shorter than leaves;

bract absent.

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.

5–9 mm;

calyx 2.5–5 mm, tube pubescent to villous, lobes lanceolate;

corolla yellow, turning red, claws shorter than calyx tube, banner implicate-ascending, with irregular or inrolled margins, wings shorter than keel;

style ± curved, 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, exserted, erect or spreading, tawny to brown, straight, compressed, slightly constricted, ± septate, oblong, 10–18 × 2.2–3 mm, thinly leathery, apex abruptly downward angled and curved, dehiscent, smooth, margins smooth, thin, pubescent (to glabrate).

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

3–7, olive green to brown, not mottled, asymmetric-reniform, smooth.

= 12.