Flora of North America species comparison

erect or decumbent, branched.

erect to decumbent, branched.

palmate;

stipules lanceolate or ovate, 1–5 cm, margins entire or denticulate, apex acuminate or acute;

petiole 1–15 cm;

petiolules 1 mm;

leaflets 3, blades linear, linear-elliptic, elliptic, lanceolate, lanceolate-oblong, or obovate, 1–5 × 0.4–1.2 cm, base cuneate, veins fine or ± thickened, margins denticulate or serrulate, apex acuminate or acute, surfaces appressed-pubescent abaxially, glabrous, densely villous, or sparsely or densely pilose adaxially.

palmate;

stipules oblong, 0.5–1.9 cm, margins entire, apex lanceolate-subulate;

petiole 0.3–5 cm;

petiolules 1 mm;

leaflets 3, blades ovate to obovate, 0.5–1.5 × 0.3–2 cm, base cuneate, veins fine, margins denticulate to dentate, apex rounded, truncate, or emarginate, surfaces hirsute.

terminal or axillary, 25–70-flowered, inverted or horizontal, ellipsoid or globose to subglobose, 2–3 × 1–3 cm, rachis prolonged beyond flowers;

involucres absent.

terminal, 40–60-flowered, globose or ovoid, burlike, not disarticulating at maturity, 1–1.4 × 1.8–2 cm;

involucres absent.

bent distally, proximal to flowers, 3–18 cm.

0.1–0.7 cm.

reflexed, to 0.3 mm;

bracteoles absent.

straight, 0.5 mm;

bracteoles absent.

9–18 mm;

calyx campanulate, curved in fruit, 4–11 mm, villous, veins 10, tube 1.5–2.5 mm, lobes unequal, 2–3 times tube, subulate, often strongly curved and twisted, plumose, orifice open;

corolla white, cream, or purple, 8–16 mm, banner oblanceolate, 8–16 × 3–5 mm, apex rounded or retuse, recurved;

ovaries pubescent distally.

7–9 mm;

calyx campanulate, 7–9 mm, glabrous, veins 20, tube 3 mm, lobes equal, longer than tube, setaceous becoming spinose, orifice hairy, open;

corolla pinkish white, 6–10 mm, banner elliptic, 6–9 × 1.5–2 mm, apex emarginate.

ovoid, 2–3.5 mm.

ovoid, leathery distally, transversely dehiscent, 1.5 mm, long-beaked.

(1 or)2–4, yellow-brown to brown, mitten-shaped or subglobose, 1.2–2 mm, smooth.

1, light brown, reddish, or yellow with reddish spots, ovoid, 1 mm, smooth, shiny.

= 16.