Flora of North America species comparison

cespitose, spreading, branched proximally, sparsely branched distally.

erect or ascending, branched.

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 linear-lanceolate, 1–3.5 cm, margins entire, apex subulate or setaceous;

petiole 0.5–10 cm;

petiolules 1 mm;

leaflet 3, blades obovate to oblong, elliptic or lanceolate, 0.5–4 × 0.5–1.5 cm, base cuneate, veins prominent, thickened, margins spinulose-denticulate, apex apiculate, 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, 50–100+-flowered, globose, ovoid, or oblong, 3–6 × 2–3.5 cm;

involucres absent.

3–7 cm, surpassing subtending leaves.

1–12 cm.

erect, reflexed in proximalmost flowers, 1 mm;

bracteoles cuplike, 0.5 mm.

absent;

bracteoles lanceolate, 6–7 mm, acuminate.

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.

12–16 mm;

calyx urceolate, not bilabiate, inflated in fruit, 6–10 mm, glabrous, veins 20–36, connected by transverse veins in fruit, tube 3–5 mm, lobes reflexed, subequal, subulate, as long as tube, orifice constricted;

corolla white becoming pink, 12–15 mm, banner ovate, broadly clawed, striate, 12–15 × 2–4 mm, apex acute-acuminate.

ellipsoid, 4–5 mm.

ellipsoid, 2.5–2.5 mm, shorter than calyx.

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

2 or 3, brown, ovoid, 1–1.5 mm, roughened.

= 16.