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 oblong to ovate, 0.8–1 cm, margins slightly denticulate or entire, apex acute to acuminate;

petiole 1–5 cm;

petiolules to 1 mm;

leaflets 3, blades obovate, 0.7–1.4 × 0.3–0.8 cm, base broadly cuneate, veins thickened, recurved, margins slightly denticulate, apex rounded or retuse, surfaces pubescent abaxially, glabrous adaxially.

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

involucres absent.

axillary or terminal, 5–15-flowered, globose or subglobose, 1–2 × 1.5–2 cm;

involucres floral bracts forming a small, scarious involucre.

3–7 cm, surpassing subtending leaves.

geniculate proximal to flowers, inflorescence appearing inverted, 2.5–11 cm.

erect, reflexed in proximalmost flowers, 1 mm;

bracteoles cuplike, 0.5 mm.

curved, 3–4 mm;

bracteoles broadly rhombic, membranous, to 0.5 mm, margins dentate.

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.

7–9 mm;

calyx campanulate, markedly bilabiate, venation strongly reticulate, 5–6 mm, sparsely pilose marginally, veins 5, reticulate in lobes, tube 0.7–1 mm, lobes unequal, abaxial 3 triangular-ovate, 2–3 mm, central abaxial lobe nearly linear, pubescent only along margins, adaxial 2 obovate, 5 mm, orifice open;

corolla white, tinged with pink or lavender, darkening in age, 6–8 mm, banner broadly ovate, 6–8 × 5–6 mm, apex rounded, denticulate.

ellipsoid, 4–5 mm.

oblong-ovoid, 3–4 mm.

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

2–6, yellow, globose to mitten-shaped, 1.1–1.6 mm, rugose.

= 16.