Flora of North America species comparison

erect or ascending, branched.

ascending, cespitose, 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.

mostly basal, palmate;

stipules ovate, 1 cm, margins entire, apex blunt;

petiole 2–6 cm;

petiolules to 1 mm;

leaflets 3, blades obovate or rhombic, 0.6–1.3 × 0.6–1 cm, base cuneate, veins prominent, margins denticulate, apex rounded or retuse, apiculate, surfaces pale abaxially, glabrous.

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

involucres absent.

terminal or axillary, 8–15-flowered, appearing turned to one side, obconic, 1.3–1.8 × 1.1–2.5 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally;

involucres absent.

1–12 cm.

curved distally proximal to flowers, 3–9 cm.

absent;

bracteoles lanceolate, 6–7 mm, acuminate.

reflexed, 1–1.2 mm;

bracteoles minute.

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 purple, campanulate, 5–6 mm, glabrous, veins 10, tube 3.5 mm, lobes equal, subulate, 2 mm, orifice open;

corolla purple, often with white tips, 15 mm, banner obovate, 11–13 × 5–6 mm, apex flared.

ellipsoid, 2.5–2.5 mm, shorter than calyx.

not seen.

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

not seen.

= 16.