Flora of North America species comparison

decumbent to erect or ascending, solid, terete, pubescent, hairs basifixed;

from branching subterranean to superficial caudex.

decumbent to erect, (1.2–)2–9.5 dm.

alternate, odd-pinnate;

stipules present, slightly adnate to petiole base, ± connate-sheathing, often suffused with purple, lanceolate, simple or bidentate, scarious;

petiolate, petiole much shorter than or subequal to blade;

leaflets 5–27, opposite or alternate, petiolulate, blade margins entire, surfaces mostly pubescent, sometimes glabrous adaxially.

3.5–23 cm;

stipules 10–17 mm;

leaflets 9–19, blades lanceolate to ovate, elliptic, or oblong, 5–40 × 3–16 mm, veins conspicuous, surfaces usually pubescent, rarely glabrous adaxially.

10–50-flowered, axis 4–25 cm in fruit;

bracts 1–4 mm.

5–60-flowered, axillary, racemes, sometimes subcapitate;

bracts present, 1 per flower;

bracteoles usually 2.

(3–)6–15 cm.

1–3.5 mm.

papilionaceous;

calyx campanulate, lobes 5;

corolla usually pink, pink-purple, lavender-pink, red-purple, lilac, lilac-purple, or yellow, rarely white, keel much exceeding wings, somewhat longer than banner, broadly truncate, apex prominent, oblique;

stamens 10, diadelphous;

anthers dorsifixed;

ovary enclosed in staminal sheath;

style glabrous.

usually declined at anthesis;

calyx 3.5–11 mm;

tube 3–9 mm, puberulent;

lobes subulate to triangular, 0.5–2 mm, equal or nearly so;

corolla usually lavender-pink or lilac- to pink-purple, rarely white, 16–25 mm;

wing auricles connate, linear, nearly equal or equal to claw.

loments, stipitate, pendulous to spreading, compressed, straight, narrowly ellipsoid, indehiscent (breaking transversely), constricted into 1–8, 1-seeded segments, glabrous or pubescent, rarely with processes.

1 per segment, brown, flattened, reniform-ovoid, glossy.

segments (1 or)2–5, 7–14.5(–18) × 5.6–10.2(–11) mm, margins conspicuously winged, prominently reticulate, pubescent or glabrous.

= 7.