Flora of North America species comparison

erect, branched.

erect, branched distally.

palmate;

stipules ovate to lanceolate, 0.8–1.5 cm, margins entire or slightly serrate, apex acicular;

petiole 1–7 cm;

petiolules to 0.5 mm;

leaflets 3, blades narrowly obcordate, obovate, oblanceolate, or linear, 1–2.5 × 0.3–0.7 cm, base cuneate, veins moderately thickened, margins serrate distally or entire, apex rounded, truncate, shallowly to deeply retuse, or deeply 2-fid, surfaces glabrous or hairy abaxially along midvein.

palmate;

stipules linear-lanceolate to ovate-oblong, 0.5–0.8 cm, margins entire, apex filiform;

petiole 0.4–4.5 cm;

petiolules 1+ mm;

leaflets 3, blades linear-oblong to narrowly elliptic, 1–2 × 0.2–0.5 cm, base cuneate, veins fine, margins denticulate distally, apex mucronate, surfaces hairy.

axillary or terminal, 5–30-flowered, globose to subglobose, 0.8–1.5 × 0.8–1.5 cm, rachis prolonged beyond flowers;

involucres a very narrow rim, to 0.5 mm.

axillary or terminal, 30–100-flowered, ovoid or cylindric, elongate in fruit, 1–2.3 × 0.9–1.2 cm;

involucres absent.

3–8 cm.

0.5–2.5 cm.

reflexed in fruit, 1–3 mm;

bracteoles broadly triangular, membranous, to 0.5 mm.

straight, to 0.5 mm;

bracteoles obtuse, to 0.1 mm.

6–8 mm;

calyx campanulate, 3–3.6 mm, slightly hairy or glabrous, veins 10, tube 1–1.5 mm, lobes unequal, subulate, margins green or purple, orifice open;

corolla pink or purple, 5–7 mm, banner elliptic to oblong, 5–7 × 3–4 mm, apex rounded, apiculate.

5–8 mm;

calyx campanulate, 5–8 mm, villous, veins 10, tube 1.2–1.8 mm, lobes purple or pink, subequal, setacous, orifice open, hairy;

corolla white to pink, 3–6 mm, much shorter than calyx, banner narrowly ovate-elliptic, 5–5.5 × 1–1.5 mm, apex obtuse.

stipitate, obovoid, 3–4 mm.

ovoid, leathery distally, transversely dehiscent, 1.5–2 mm.

1 or 2, brown, mottled, oblong, 2–3 mm, smooth.

1, yellow, globose, 1 mm, smooth, glossy.

= 16.

= 14.