Flora of North America species comparison

erect or decumbent, sparsely branched.

palmate;

stipules lanceolate to narrowly ovate, 1.5–2 cm, margins toothed or lacerate, apex acuminate;

petiole 1–3.5 cm;

petiolules to 0.5 mm;

leaflet blades linear, elliptic, or obovate, 0.8–2.5 × 0.1–0.3 cm, base cuneate, veins thickened, margins entire or finely serrate to setose-spinulose, apex acute or apiculate, surfaces glabrous.

terminal or axillary, 8–20-flowered, subglobose to globose, 1.5–2 × 1.5–4 cm;

involucres broadly campanulate, 10–22 mm, incised to 3/4 their length, lobes 10+, triaristate to lacerate.

4–6 cm.

straight, 0.5 mm;

bracteoles subulate or broadly wavy-margined, 2–3 mm.

12–20 mm;

calyx tubular-conic, 5–7 mm, glabrous, veins 10, tube 2–2.5 mm, lobes ± equal, 6–8 mm, abaxial lobe longer than tube, orifice open;

corolla white, lavender, or purple, sometimes with different colors within inflorescence, 11–13 mm, banner narrowly oblong [broadly obovate-oblong], 11–13 × 4 mm, apex rounded.

oblong, 3–6 mm.

2–4, olive, reniform, 1.3–1.5 mm, smooth.

= 16.