Flora of North America species comparison

erect, dichotomously branched.

palmate;

stipules lanceolate, 0.4–1.2 cm, margins lacerate, apex subulate;

petiole 0.5–4 cm;

petiolules to 0.5 mm;

leaflets 3, blades linear, oblong, oblanceolate, or elliptic, 0.5–2.5 × 0.1–0.5 cm, base cuneate, veins fine or moderately thickened, margins entire, spinulose, or dentate, apex rounded or truncate, mucronate, surfaces glabrous.

axillary or terminal, 3–15-flowered, obconic, 0.3–1.2 × 0.3–0.8 cm;

involucres flattened to bowl-shaped, 1–2 mm, when folded, not hiding flowers except proximally, incised 4/5–9/10 their length, lobes lanceolate-subulate.

2.5–7.5 cm.

erect, 0.5–2 mm;

bracteoles absent.

11–16 mm;

calyx campanulate, slit between adaxial lobes, 4–5 mm, glabrous, veins 10, tube 2.5–5.2 mm, lobes triangular-subulate, 3-fid or shouldered below apex, orifice open;

corolla lavender with white tips, keel petals purple, 6–8 mm, banner narrowly ovate-oblong, 6–8 × 2 mm, apex narrowly rounded, erose.

sessile, oblong, 2.1–3.2 mm.

1 or 2 (or 3), reddish brown, mottled, lenticular or reniform, 1.2–1.3 mm, smooth.

= 16.