Flora of North America species comparison

erect, branched from base and distally, or unbranched.

curved-ascending, branched.

palmate;

stipules ovate-oblong, 0.5–1.8 cm, margins entire, toothed, or irregularly lobed, apex acuminate;

petiole 0.5–10 cm;

petiolules to 1 mm;

leaflets 3, blades broadly obovate or elliptic, 1.7–3.3 × 1.1–2 cm, base cuneate, veins fine, margins entire or denticulate, apex rounded, obtuse, or retuse, surfaces pilose, abaxial less so.

palmate;

stipules lanceolate-ovate, 0.8–1.8 cm, margins entire, apex long-setaceous;

petiole 0.5–5 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate to oblong, 0.8–2.5 × 0.5–1.3 cm, base cuneate, veins prominent, closely-spaced, margins denticulate distally, apex rounded, surfaces densely spreading-hairy.

terminal or axillary, 30–50-flowered, bluntly conic, ellipsoid, globose, or subglobose, 1.5–3 × 1.5–2.5 cm;

involucres absent.

terminal on branches, 10–50-flowered, globose or ovoid, disarticulating in fruit, 1.5–2.5 × 1.5–2.5 cm;

involucres absent, involucrelike structures formed by enlarged stipules.

5–15 cm.

absent.

absent;

bracteoles cuplike, to 0.5 mm.

absent;

bracteoles absent.

13–16 mm;

calyx tubular, 9–12 mm, pubescent, veins 20–30, tube 3 mm, lobes nearly equal, appearing rigidly erect, linear-setaceous, plumose, sinuses acute, orifice open;

corolla white to pink with purple tips, 12–16 mm, banner ovate-oblong, 12–15 × 4 mm, apex broadly rounded, emarginate.

10–17 mm;

calyx campanulate, 7–11 mm, pilose, veins 20, tube 2–5 mm, lobes subequal, abaxial slightly longer, orifice hairy, open;

corolla purplish red, 10–14 mm, banner lanceolate, 10–14 × 1–2 mm, apex acute-acuminate.

obovoid, 4 mm.

ovoid, leathery distally, transversely dehiscent, 2–3 mm.

1, dark brown, ellipsoid, 2–3 mm, smooth.

1, tan or brown, globose-ellipsoid, 1.5–2 mm, smooth, glossy.

= 10.