Flora of North America species comparison

erect, branched from base and distally, or unbranched.

prostrate, ascending, or erect, branched.

palmate;

stipules ovate, 0.4–1.2 cm, margins entire, ciliate, apex often purple, acuminate, setaceous;

petiole 0.5–8 cm;

petiolules 0.5–1 mm;

leaflets 3, blades obovate or elliptic, 0.5–3 × 0.3–1.2 cm, base cuneate, veins obscure or slightly thickened, margins dentate, apex rounded or emarginate, surfaces pilose.

palmate;

stipules ovate, 0.6–1 cm, margins entire or serrate, apex acuminate;

petiole 2–5 cm;

petiolules 1 mm;

leaflets 3, blades obovate, 0.6–1.4 × 0.3–1.1 cm, base cuneate, veins moderately thickened, margins denticulate, apex rounded, sometimes retuse, surfaces glabrous except on veins abaxially.

terminal or axillary, 25–50-flowered, ovoid-ellipsoid, 1–2.5 × 1.2–2.5 cm;

involucres absent.

axillary or terminal, 5–40-flowered, globose, 1–2 × 1–2 cm;

involucres minute.

3–11 cm.

± geniculate proximal to flowers, inflorescence appearing sideways or inverted, 3.5–10 cm.

absent;

bracteoles cuplike, to 0.5 mm.

reflexed, 2–3 mm;

bracteoles ovate or lanceolate, 0.5 mm.

6–10 mm;

calyx tubular, 8–14 mm, densely pubescent, veins 20–30, tube 1–2 mm, lobes nearly equal, appearing rigidly erect, linear-setaceous, plumose, sinuses acute, orifice open;

corolla sometimes absent, red-violet, often with white tips, 4–6 mm, banner ovate-oblong, 7–8 × 2–3 mm, apex broadly rounded, apiculate.

4.5–7 mm;

calyx usually pink to magenta, campanulate, bilabiate, 3–4 mm, pilose, veins 5, slightly branched in lobes, tube 0.8–1 mm, lobes unequal, abaxial 3 lanceolate or linear, 0.8–1 mm, villous, adaxial 2 broadly triangular, 2.5–3 mm, orifice open;

corolla creamy white, often pink-tinged, darkening in age, 4–4.5 mm, banner broadly ovate-rhombic, 4–4.5 × 3.8–4 mm, apex rounded, slightly erose.

obovoid, 3–3.5 mm.

oblong, 3–4 mm.

1, yellow-brown, ellipsoid, 2–2.5 mm, smooth.

2–4, yellow-brown to brown, globose to mitten-shaped, 1.1–1.6 mm, rugose.

= 16.