Flora of North America species comparison

erect or ascending, cespitose, unbranched to sparsely branched distally.

erect, ascending, or decumbent, branched.

palmate;

stipules ovate to lanceolate, 1–5 cm, margins usually entire, sometimes slightly serrate proximally, apex acute or acuminate;

petiole 1–13 cm;

petiolules to 1 mm;

leaflets 3, blades linear, lanceolate to elliptic, or oblong, cauline sometimes ovate, 0.8–6 × 0.2–1.6 cm, base cuneate, veins slightly to very thickened, arching, margins entire or serrate, apex acute, surfaces glabrous abaxially, usually appressed-pubescent adaxially.

palmate;

stipules ovate to lanceolate, 1.5–2 cm, margins entire (proximal stipules) or lacerate (distal stipules), apex acute to acuminate;

petiole 1–11 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate to elliptic, 0.4–4.2 × 0.2–1.3 cm, base cuneate or rounded, veins fine or thickened distally, margins spinulose-serrate, apex usually acute to rounded, sometimes retuse or mucronate, surfaces glabrous.

terminal, 10–40-flowered, globose, ellipsoid, obconic, or subglobose, 1–3.5 × 1–3.2 cm;

involucres absent.

axillary or terminal, 20–50-flowered, subglobose or globose, 1.8–2.5 × 2–2.5 cm;

involucres broadly bowl-shaped, 12–20 mm, incised 1/3–1/2 their length, lobes 10+, sharply and acutely serrate, veins prominent.

1–30 cm.

1.5–11 cm.

erect or reflexed in fruit, 0.5–2 mm;

bracteoles scalelike, 0.5 mm.

straight, 1.5–2 mm;

bracteoles linear or ovate, 1–2 mm.

10–19 mm;

calyx tubular, 4–10 mm, hairy or glabrous, veins 5–10, tube 2.5–3 mm, lobes unequal, linear, shorter than or to 6 times tube, orifice open;

corolla white, cream, pink, lavender, or purple, sometimes pale with purple tips, 10–18 mm, petals not beaked except subsp. multipedunculatum, banner ovate to oblanceolate, 10–18 × 3–4 mm, apex usually not beaked, usually obtuse, acute, or acuminate, rarely emarginate;

ovaries pubescent distally.

12–14 mm, odor somewhat unpleasant;

calyx whitish, tubular, 5–6 mm, glabrous, veins 10, tube 2–3 mm, lobes green to purple, subequal, abaxial rarely longer than tube, orifice open;

corolla usually magenta to purple, rarely white or bicolored, 10–12 mm, banner ovate-oblong, 12–14 × 2–3 mm, apex truncate or rounded, slightly retuse.

oblong to ellipsoid, 4–5 mm.

oblong, 2–4 mm.

1–4, dark brown, flattened globose, 2–3 mm, smooth.

3 or 4, brown, sometimes mottled, subglobose or mitten-shaped, 1.5 mm, smooth.

= 16, 32.