Flora of North America species comparison

erect or decumbent, branched.

cespitose, matted, acaulescent.

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-lanceolate, 1–2 cm, margins entire, apex acuminate, sometimes forked;

petiole 0.3–2.5 cm;

petiolules to 0.2 mm;

leaflets 3, blades oblanceolate or obovate, 0.3–1.2 × 0.1–0.5 cm, base cuneate, veins ± thickened, margins toothed, apex acute or acuminate, 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.

terminal or axillary, 1–4-flowered, umbellate, 1.5–2 × 0.5–1 cm, rachis not prolonged beyond flowers;

involucres a narrow, membranous, dentate rim, 1 mm.

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

0.5–3 cm.

reflexed, to 0.3 mm;

bracteoles absent.

erect, 1 mm;

bracteoles cuplike, membranous, 0.5–1 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.

15–20 mm;

calyx campanulate, 4–7 mm, glabrous, veins 5–10, tube 3–4 mm, lobes equal, triangular-acuminate, orifice open;

corolla purple or violet, 15–20 mm, banner oblong, 15–20 × 7–9 mm, apex rounded, slightly retuse.

ovoid, 2–3.5 mm.

oblanceoloid, 9–11 mm.

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

4–6, tan or brown, mitten-shaped, 2–2.2 mm, smooth, dull.

= 16.