Flora of North America species comparison

erect, ascending, or prostrate, branched.

erect, ascending, or decumbent, branched from base.

palmate;

stipules ovate to oblong, 0.6–1 cm, margins entire, apex acuminate to cuspidate;

petiole 0.5–6 cm;

petiolules to 0.5 mm;

leaflets 3, blades obovate, oblanceolate, or elliptic, 0.6–1.6 × 0.3–1.2 cm, base cuneate, veins obscure or slightly thickened, margins subentire to serrate, apex rounded, retuse, surfaces pubescent.

palmate;

stipules lanceolate-ovate, 0.9–1.1 cm, margins entire, apex acute-acuminate, setaceous, ciliate;

petiole 0.5–5 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate to oblong, 0.9–1.6 × 0.4–1 cm, base cuneate, veins fine, margins denticulate, apex obtuse, obcordate, or emarginate, surfaces hairy.

terminal or subterminal, usually paired, sometimes one head slightly stalked, partially hidden by terminal leaves and stipules, 10–40-flowered, ovoid or subglobose, 0.8–2.5 × 0.5–2 cm;

involucres absent, involucrelike structure formed from terminal leaves and stipules.

axillary or terminal, solitary or paired, 20–60-flowered, ovoid or oblong, 0.8–1.6 × 0.6–1 cm;

involucres absent.

0–0.2 cm.

0–1 cm.

absent;

bracteoles broadly ovate to linear, 1–2 mm.

absent;

bracteoles absent.

5.5–7.5 mm;

calyx tubular, 4–5 mm, pubescent, veins 5–10, tube 1.5–2 mm, lobes subequal, subulate, orifice open;

corolla usually purple or pink, rarely white, 5–7 mm, banner obovate-oblong, 6–7 × 2–3 mm, apex rounded, slightly denticulate.

5–7 mm;

calyx ellipsoid to urceolate, 3–4 mm, hairy, veins 10, tube 2–3 mm, lobes erect or spreading, unequal, abaxial longest and equal to tube, subulate, orifice open;

corolla pink, 25–35 mm, banner oblong, 2.5–3.5 × 1.5–2 mm, apex retuse.

oblong, 2.5–3 mm.

ovoid, leathery distally, transversely dehiscent, 2–2.5 mm.

1, yellow, mottled, ellipsoid, 1.6–2 mm, smooth.

1, tan or reddish brown, globose to ovoid, 1–1.5 mm, smooth, glossy.

= 16.

= 14.