Flora of North America species comparison

cespitose, spreading, branched proximally, sparsely branched distally.

erect, fistulose, unbranched or branched distally.

palmate;

stipules broadly obovate, 1–2 cm, fused at base, margins slightly lobed, apex acute;

petiole 2–6 cm;

petiolules 1–1.5 mm;

leaflets 3, blades ovate, obovate, or orbiculate, slightly overlapping, 1–2 × 0.7–2.3 cm, base truncate to rounded, veins prominent, margins sparsely dentate, apex rounded, emarginate, surfaces glabrous.

palmate;

stipules ovate, 1.5–4.5 cm, margins usually entire, sometimes lobed, apex acuminate;

petiole 0.5–20 cm;

petiolules 1–1.5 mm;

leaflets 3, blades ovate, elliptic, or rhombic, 3.5–9.5 × 2.3–5 cm, base cuneate, veins obscure, margins ± serrate, apex acute, rounded, or obtuse, surfaces glabrous.

terminal, 20–30-flowered, globose, usually formed of 2 sessile heads, 2.5–5 × 2.5–5 cm;

involucres absent.

terminal or axillary, 20–70-flowered, globose or ellipsoid, 2.5–4 × 2–2.5 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally;

involucres absent.

3–7 cm, surpassing subtending leaves.

3–11 cm.

erect, reflexed in proximalmost flowers, 1 mm;

bracteoles cuplike, 0.5 mm.

strongly reflexed in fruit, 1 mm;

bracteoles minute, blunt or acute, membranous.

15–21 mm;

calyx tubular-campanulate, 9–12 mm, pilose, veins 10, tube 4.5–6 mm, lobes subequal, abaxialmost longest, subulate, orifice open;

corolla deep pink or magenta, 20–23 mm, banner tubular for most their length, 18–22 × 5–7 mm, apex flared.

10–14 mm;

calyx campanulate, gibbous, 4–5.5 mm, glabrous, veins 10, tube 2–2.5 mm, lobes subequal, linear-lanceolate, orifice open;

corolla white, lemon yellow, or greenish yellow, 11–12 mm, banner elliptic-oblong, 11–12 × 4–5 mm, apex obtuse.

ellipsoid, 4–5 mm.

oblong or clavate, 4–5 mm.

1 or 2, yellow-mottled, mitten-shaped, 2–3 mm, smooth.

1–3, reddish black or brown, angular, mitten-shaped, 2.5 mm, smooth or slightly roughened, dull.