Flora of North America species comparison

cespitose, branched, numerous short stems.

erect, branched.

palmate;

stipules lanceolate-linear, 1.5–2 cm, margins entire, apex acuminate;

petiole 0.6–3.5 cm;

petiolules to 0.5 mm;

leaflets 3, blades oblong-elliptic, oblanceolate, or obovate, sometimes folded, 0.6–3.2 × 0.2–0.6 cm, base cuneate, veins obscure, margins entire, apex acute, surfaces glabrous or hairy.

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.

axillary or terminal, 5–16-flowered, globose, 1.5–3.5 × 1.2–3.3 cm;

involucres formed of proximal bracteoles, bases sometimes connate.

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.

2–17 cm.

3–8 cm.

erect, 1.5–2 mm;

bracteoles linear-lanceolate, scarious, 2–6 mm, or scalelike.

reflexed in fruit, 1–3 mm;

bracteoles broadly triangular, membranous, to 0.5 mm.

12–16 mm;

calyx campanulate, 6–9 mm, pubescent, veins 10, tube 2–5 mm, lobes unequal, linear-subulate, orifice open;

corolla often bicolored cream and violet, sometimes all red-purple or violet, 1.2–1.6 mm, banner broadly elliptic-ovate, 11–15 × 4–5 mm, folded distally, apex rounded, apiculate;

ovaries pubescent distally.

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.

oblong, 4–6 mm.

stipitate, obovoid, 3–4 mm.

1–3, dark brown, ovoid-reniform, 2–2.5 mm, smooth.

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

= 16.

= 16.