Flora of North America species comparison

erect or decumbent, branched.

erect, 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 ovate-oblong to lanceolate, 0.4–1.3 cm, sheathing proximally, margins entire or serrate, apex acuminate;

petiole 3–9 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate to oblanceolate, 1.2–3 × 0.3–1.4 cm, base cuneate, veins fine, margins serrate, apex rounded or truncate, surfaces glabrous.

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 or terminal, 5–15-flowered, ellipsoid, 1–1.8 × 1.3–1.5 cm;

involucres flattened, 3–4 mm, shallowly incised, lobes 5–8, elliptic, apex rounded to truncate and irregularly erose, not split.

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

3.5–6 cm.

reflexed, to 0.3 mm;

bracteoles absent.

erect, 1 mm;

bracteoles broadly ovate, to 0.5 mm.

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.

7–11 mm;

calyx campanulate-tubular, 2.5–5 mm, glabrous, veins 5, tube 1–2.5 mm, lobes unequal, lanceolate-subulate, orifice open;

corolla reddish purple, 7–9 mm, inflated in fruit, banner oblong, 7–9 × 3–4 mm, apex rounded, retuse.

ovoid, 2–3.5 mm.

stipitate, ovate-oblong, 4 mm.

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

1 or 2, red-brown, ovoid-ellipsoid, 2 mm, smooth or papillate.