Flora of North America species comparison

erect, ascending, or prostrate, branched.

erect, branched distally.

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 linear-lanceolate to ovate-oblong, 0.5–0.8 cm, margins entire, apex filiform;

petiole 0.4–4.5 cm;

petiolules 1+ mm;

leaflets 3, blades linear-oblong to narrowly elliptic, 1–2 × 0.2–0.5 cm, base cuneate, veins fine, margins denticulate distally, apex mucronate, 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, 30–100-flowered, ovoid or cylindric, elongate in fruit, 1–2.3 × 0.9–1.2 cm;

involucres absent.

0–0.2 cm.

0.5–2.5 cm.

absent;

bracteoles broadly ovate to linear, 1–2 mm.

straight, to 0.5 mm;

bracteoles obtuse, to 0.1 mm.

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.

5–8 mm;

calyx campanulate, 5–8 mm, villous, veins 10, tube 1.2–1.8 mm, lobes purple or pink, subequal, setacous, orifice open, hairy;

corolla white to pink, 3–6 mm, much shorter than calyx, banner narrowly ovate-elliptic, 5–5.5 × 1–1.5 mm, apex obtuse.

oblong, 2.5–3 mm.

ovoid, leathery distally, transversely dehiscent, 1.5–2 mm.

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

1, yellow, globose, 1 mm, smooth, glossy.

= 16.

= 14.