Flora of North America species comparison

erect or ascending, unbranched or branched.

erect or ascending, unbranched or densely dichotomously branched.

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.

palmate;

stipules ovate or lanceolate, 1–3 cm, margins entire or toothed, apex usually acuminate, sometimes 2-fid;

petiole 3–15 cm;

petiolules 1–1.5 mm;

leaflets 3, blades broadly obovate, orbiculate, or rhombic-obovate, 0.8–4 × 0.7–3 cm, base broadly cuneate, veins obscure, thickened near leaflet margin, margins remotely dentate to densely serrulate-dentate, apex rounded or slightly retuse, surfaces glabrous or glabrate.

terminal or axillary, 10–50-flowered, globose to subglobose, 1.5–4 × 2–4 cm;

bracteoles forming shallow, membranous cups, to 0.5 mm.

terminal or axillary, 10–30-flowered, subglobose or globose, 1–4 × 1–4 cm;

involucres broadly bowl-shaped, 4–15 mm, lobes 3–8, lanceolate, acuminate, undivided or 2- or 3-fid.

2–8 cm.

3–13 cm.

reflexed in fruit, 5–12 mm;

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

straight, 1 mm;

bracteoles distinct or connate, broadly ovate, 1 mm.

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.

10–27 mm;

calyx campanulate, 3–8 mm, glabrous, veins 10, tube 1.5–2.5 mm, lobes 5–10, unequal, undivided or 3-fid, long-acuminate, orifice open;

corolla creamy white to yellow, pink to purple in age, keel petals rarely dark purple, 10–27 mm, banner broadly ovate, inflated in fruit, not distally twisted, 10–27 × 6–15 mm, apex rounded, erose.

oblong, 4–5 mm.

stipitate, linear, 7–8 mm.

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

3–8, gray, mottled, globose, 1.6–2 mm, reticulate.

= 16.

= 16.