Flora of North America species comparison

erect or ascending, branched.

erect, unbranched to sparsely branched.

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.

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.

terminal or axillary, 50–100+-flowered, globose, ovoid, or oblong, 3–6 × 2–3.5 cm;

involucres absent.

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

involucres absent.

1–12 cm.

1–2.2 cm.

absent;

bracteoles lanceolate, 6–7 mm, acuminate.

erect, 0.5 mm;

bracteoles absent.

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.

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.

ellipsoid, 2.5–2.5 mm, shorter than calyx.

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

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

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

= 16.

= 14, 16.