Flora of North America species comparison

erect or decumbent, branched.

erect or ascending, 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 lanceolate to narrowly ovate, 0.3–1 cm, margins entire, apex long-acuminate;

petiole 0.3–4 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate to obcordate, 0.3–1.5 × 0.3–1.2 cm, base cuneate, veins thickened, recurved, margins dentate, apex obtuse or emarginate, surfaces sparsely hairy abaxially, glabrous adaxially.

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.

axillary, 5–25-flowered, globose, 1.3–1.5 × 1.3–1.5 cm;

involucres absent.

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

geniculate proximal to flowers, inflorescence appearing inverted, 3–5 cm.

reflexed, to 0.3 mm;

bracteoles absent.

strongly reflexed in fruit, 2–3 mm;

bracteoles minute.

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.

11–13 mm;

calyx tubular, 6–8 mm, pilose or glabrous, veins 10, tube 1.5–2 mm, lobes subequal, subulate, orifice open;

corolla rose-pink or creamy white, 6–10 mm, banner ovate-oblong, 6–10 × 3 mm, equaling wing and keel petals, apex rounded or emarginate.

ovoid, 2–3.5 mm.

short-stipitate, ovoid-ellipsoid, 7–10 mm.

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

1 or 2, brown, ovoid-ellipsoid, 2.5–3 mm, smooth.

= 16.