Flora of North America species comparison

ascending, cespitose, short-branched.

erect or ascending, cespitose, much-branched.

mostly basal, palmate;

stipules lanceolate, 0.4–0.8 cm, margins entire or lobed, apex acute or acuminate;

petiole 1–6 cm;

petiolules to 0.5 mm;

leaflets 3, blades broadly ovate, 0.4–2 × 0.3–1.5 cm, base cuneate, veins thickened distally, ± straight, sometimes arching distally, 0.5+ mm apart, 5–10 pairs of primary veins, margins sharply antrorse-serrate, apex acute, short-apiculate, surfaces glabrous.

palmate;

stipules oblanceolate, 0.5–1.4 cm, margins entire, apex acute-acuminate;

petiole 0.5–4 cm;

petiolules to 0.1 mm;

leaflets 3, blades oblanceolate, often folded, 0.4–1.5 × 0.2–0.4 cm, base cuneate, veins obscure, margins subentire to denticulate distally, apex acute, mucronulate, surfaces villous.

terminal, 5–20-flowered, erect, globose or subglobose, 0.5–1.5 × 0.8–2.5 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally;

involucres a narrow, membranous, dentate rim, 0.5 mm.

terminal, usually formed of 2 sessile heads, 15–25-flowered, globose, 0.8–2 × 0.6–1.5 cm;

involucres absent, distal stipules and leaves sometimes forming involucrelike structure.

straight distally, proximal to inflorescence, 5–8 cm.

between distal leaves or involucrelike structure and inflorescences 0.5–6 cm.

strongly reflexed, 1.5 mm;

bracteoles broadly ovate, truncate, membranous, to 0.5 mm.

straight, (0–)1–2 mm;

bracteoles broadly ovate, truncate, membranous, to 0.5 mm.

13–17 mm;

calyx campanulate, 4.5–6.5 mm, glabrous, veins 10 (5 sometimes faint), tube 2–3 mm, lobes subequal, narrowly triangular-subulate, equaling tube, orifice open;

corolla salmon, buff-pink, or pink, with white or cream tips, 13–17 mm, banner broadly elliptic-oblong, 13–17 × 6–8 mm, apex rounded, retuse or slightly apiculate.

10–15 mm;

calyx tubular-campanulate, 6–9 mm, rough-hairy or glabrous, veins 10, tube 3–6 mm, lobes subequal, subulate, orifice open;

corolla light purple, 10–15 mm, banner oblong, 9–13 × 3–4 mm, apex rounded or truncate;

ovaries pubescent distally.

stipitate, obovoid-oblong, 6–7 mm.

ellipsoid, 4–5 mm.

1–4, brown, lenticular-ovoid, 2.5–3 mm, smooth.

1 or 2, brown, ovoid, 1.5–2 mm, smooth.

= 16.