Flora of North America species comparison

erect or ascending, branched.

erect, ascending, or decumbent, unbranched or branched distally.

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-elliptic on basal leaves, triangular-ovate on distal leaves, 0.8–3 cm, margins entire, apex acute or acuminate;

petiole 1–15 cm;

petiolules 1 mm;

leaflets 3, blades ovate, rhombic, or lanceolate, 1–4.5 × 0.3–2.5 cm, thin, base cuneate, veins prominent, margins serrate, those of basal leaves setose and/or dentate, apex rounded or acute, surfaces glabrous.

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

involucres absent.

terminal or axillary, 20–40-flowered, ovoid or obovoid, 2–4 × 1.4–3.5 cm, rachis internodes between floral whorls elongated;

involucres absent.

1–12 cm.

4–15 cm.

absent;

bracteoles lanceolate, 6–7 mm, acuminate.

reflexed, to 1 mm;

bracteoles minute, blunt.

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.

14–17 mm;

calyx campanulate, 4–5.7 mm, sparsely hairy, veins 10, tube 2–3.5 mm, lobes unequal, shorter than tube, narrowly triangular, orifice open;

corolla violet or deep purple, 14–17 mm, banner ovate-oblong, 14–16 × 8–10 mm, apex rounded or slightly emarginate.

ellipsoid, 2.5–2.5 mm, shorter than calyx.

oblong or clavate, 4–5 mm.

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

1–3, brown, flattened ovoid, 2 mm, smooth or slightly roughened, dull.

= 16.