Flora of North America species comparison

curved-ascending, branched.

prostrate, decumbent, or erect, branched.

palmate;

stipules lanceolate-ovate, 0.8–1.8 cm, margins entire, apex long-setaceous;

petiole 0.5–5 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate to oblong, 0.8–2.5 × 0.5–1.3 cm, base cuneate, veins prominent, closely-spaced, margins denticulate distally, apex rounded, surfaces densely spreading-hairy.

palmate;

stipules ovate, 0.4–1.2 cm, margins serrate-lacerate, apex acuminate;

petiole 1–4 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate, 0.5–1.5 × 0.4–1 cm, base cuneate, veins moderately prominent, margins denticulate, apex truncate, retuse, or mucronulate, surfaces glabrescent.

terminal on branches, 10–50-flowered, globose or ovoid, disarticulating in fruit, 1.5–2.5 × 1.5–2.5 cm;

involucres absent, involucrelike structures formed by enlarged stipules.

axillary or terminal, 2–15-flowered, subglobose, 1.5–1.8 × 0.5–1.5 cm;

involucres flattened or vase-shaped, 1–3 mm, when folded, not hiding flowers except proximally, incised 2/3–3/4 their length, lobes 5–15, linear-lanceolate, entire, acuminate.

absent.

1.5–4 cm.

absent;

bracteoles absent.

erect, 1.5 mm;

bracteoles absent.

10–17 mm;

calyx campanulate, 7–11 mm, pilose, veins 20, tube 2–5 mm, lobes subequal, abaxial slightly longer, orifice hairy, open;

corolla purplish red, 10–14 mm, banner lanceolate, 10–14 × 1–2 mm, apex acute-acuminate.

8–11 mm;

calyx campanulate-tubular, not slit between adaxial lobes, 6–9 mm, usually densely pubescent, rarely sparsely so, veins 10, tube 2.5–4.5 mm, lobes unequal, lanceolate-subulate, orifice open;

corolla light purple with darker purple keel petals, 6–10 mm, banner narrowly obovate, 4–5 × 1 mm, apex retuse.

ovoid, leathery distally, transversely dehiscent, 2–3 mm.

sessile, oblong, 5 mm.

1, tan or brown, globose-ellipsoid, 1.5–2 mm, smooth, glossy.

3–6(–9), pale brown, mottled purple, globose to mitten-shaped, 0.8–1 mm, smooth to slightly roughened, semiglossy.

= 10.