Flora of North America species comparison

erect or decumbent, branched.

erect or ascending, unbranched or 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 broadly ovate, 1–2.5 cm, margins entire or denticulate, apex acute or acuminate;

petiole 1–10 cm (distalmost 0.3–3.5 cm);

petiolules 0.5–1.5 mm;

leaflets 3, blades ovate, obovate, oblong, or rhombic, 1–4.5 × 0.7–2 cm, base cuneate, veins fine, margins dentate to denticulate, apex broadly acute, rounded, or emarginate, surfaces pubescent or 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, 10–50-flowered, globose to subglobose, 1.5–4 × 2–4 cm;

bracteoles forming shallow, membranous cups, to 0.5 mm.

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

2–8 cm.

reflexed, to 0.3 mm;

bracteoles absent.

reflexed in fruit, 5–12 mm;

bracteoles broad-obovate, membranous, 0.5–1 mm, truncate to 2-fid.

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.

10–15 mm;

calyx campanulate, 6–9 mm, pilose or glabrous, veins 10, tube 1–1.5 mm, lobes equal, narrowly triangular to subulate, 3–7 mm, margins green, sinuses broad, orifice open;

corolla usually pink, magenta, or creamy white, sometimes bicolored, 9–14 mm, banner obovate-oblong, 9–14 × 5–8 mm, apex rounded or retuse, often erose-denticulate.

ovoid, 2–3.5 mm.

oblong, 4–5 mm.

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

1–6, yellow to brown, purple-mottled, globose, 1.2–1.5 mm, slightly rugose.

= 16.