Flora of North America species comparison

erect, branched from base and distally, or unbranched.

erect, 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 ovate, 0.5–1.5 cm, margins toothed or lacerate, apex acute-acuminate;

petiole 1–15 cm;

petiolules 1 mm;

leaflets 3, blades elliptic, oblanceolate, or obovate, 2–2.5 × 1–1.5 cm, base cuneate, veins fine, margins dentate-serrate to crenulate, teeth shortly aristate, apex obtuse or broadly acute, surfaces pubescent or glabrate.

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

involucres absent.

axillary or terminal, 5–30-flowered, subglobose or globose, 1.8–3 × 2–3 cm;

involucres bowl-shaped, 10–25 mm, lobes 6–16, sharply setaceous-toothed, sinuses shallow.

5–15 cm.

2–15 cm.

absent;

bracteoles cuplike, to 0.5 mm.

straight, 0.5 mm;

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, 6–13 mm, pubescent, veins 5, tube 3–5 mm, lobes unequal, setaceous, abaxial inconspicuously 2- or 3-fid, adaxial unbranched, segments plumose, orifice open;

corolla usually lavender or purple, sometimes purple with white tips, 8–16 mm, banner oblong, proximally inflated in fruit, distally narrowed into twisted tip, 3–5 × 10–13 mm, apex obtuse, truncate, or emarginate.

obovoid, 4 mm.

stipitate, ovoid-ellipsoid, 2.5–4 mm.

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

1 or 2, pale brown, mottled, ellipsoid to mitten-shaped, 1.6–2 mm, rugose.