Flora of North America species comparison

erect, unbranched to sparsely branched.

erect or ascending, branched from root stock.

palmate;

stipules lanceolate to linear, 0.5–2.2 cm, margins entire, apex lanceolate-linear;

petiole 2–3 cm;

petiolules 1+ mm;

leaflets 3, blades linear-lanceolate, 3–5 × 0.2–0.4 cm, base cuneate, veins fine, margins entire, apex acute, surfaces hairy.

palmate;

stipules lanceolate, 0.8–3 cm, margins entire, apex acuminate;

petiole 0.8–15 cm;

petiolules 1 mm;

leaflets 3, blades ovate, elliptic, or lanceolate, 0.5–8 × 0.4–2.6 cm, basal blades thick, base cuneate, veins prominent, margins sharply serrate, those of basal leaves entire, sometimes shortly setose, apex acute, obtuse, or obcordate, surfaces glabrous.

terminal, 25–75-flowered, spicate, cylindric or conic, 3–8 × 1.5–2 cm;

involucres absent.

terminal or axillary, 20–35-flowered, inverted or horizontal, depressed-globose or obovoid, 1.5–3.2 × 1.5–3 cm, rachis internodes not especially elongated;

involucres absent.

1–2.2 cm.

curved apically, 3–14 cm.

erect, 0.5 mm;

bracteoles absent.

reflexed, 0.5 mm;

bracteoles broadly ovate, blunt, minute.

10–13 mm;

calyx tubular, 8–13 mm, tuberculate with appressed, stiff hairs, veins 10, tube 3–5 mm, lobes unequal, abaxial lobes longest, subulate-setaceous, spreading stellate in fruit, orifice closed by bilabiate callosities, hairy;

corolla usually pale pink or purple, rarely white, 9–12 mm, banner ovate-elliptic, 9–12 × 2–2.5 mm, apex notched.

12–16 mm;

calyx campanulate, 5–6 mm, usually sparsely pubescent, sometimes glabrate, veins 5, tube 2–3.5 mm, lobes equal, 1–1.5 times tube, subulate, curved, orifice open;

corolla usually pink-purple, rarely white, 13–15 mm, banner lanceolate-ovate, 15–18 × 4–5 mm, apex rounded;

ovaries glabrous.

ovoid, leathery distally, transversely dehiscent, 2.2–2.5 mm.

flattened, ellipsoid, 3–4 mm.

1, light brown or yellow, ovoid, 1.6–2 mm, smooth, glossy.

1–3, brown, flattened ovoid, 2–2.2 mm, smooth.

= 14, 16.

= 16.