Flora of North America species comparison

erect to prostrate, branched from base.

cespitose, numerous, short, branched from woody crown.

pinnate;

stipules ovate, 0.3–0.5 cm, margins entire, apex acute;

petiole to 1.5 cm;

lateral leaflet petiolules to 0.5 mm, terminal leaflet stalk 1–1.5 mm;

leaflets 3, blades obovate to elliptic-lanceolate, 1–2 × 0.5–1.5 cm, base cuneate, lateral veins prominent, ± parallel, ascending, margins dentate distally, apex rounded or retuse, surfaces glabrous or sparsely hairy.

palmate;

stipules ovate to lanceolate, 0.5–1.5 cm, margins entire or irregularly dentate, apex acute to acuminate;

petiole 1.5–10 cm;

petiolules to 0.5 mm;

leaflets 3–5, blades ovate, obovate, oblong, or elliptic, 0.8–3 × 0.2–1.8 cm, base cuneate, veins thickened distally, margins spinose-dentate, apex rounded or acute, surfaces usually pubescent, sometimes glabrous adaxially.

axillary or terminal, 5–20-flowered, ovoid or globose, 0.5–0.9 × 0.6 cm;

involucres absent.

terminal, 6–15-flowered, subglobose, 1–2 × 1.3–2.4 cm;

involucres a narrow, membranous, dentate rim, 0.5 mm.

1–1.5 cm.

1–6.5 cm, ± surpassing leaves, not bent distally.

reflexed, 0.2–0.5 mm;

bracteoles a fringe of red setae.

erect, those of proximal flowers sometimes reflexed, 1–4 mm;

bracteoles ovate-triangular, to 0.8 mm.

2.8–3.5 mm;

calyx campanulate, 1.5–2 mm, glabrous, veins 5, tube 0.8–1 mm, lobes unequal, longer than tube, adaxial 2 shorter, orifice open;

corolla pale yellow becoming brown, 2.6–3.2 mm, not or slightly ribbed, banner persistent, spatulate, 2.6–3.2 × 2 mm, apex rounded to broadly acute.

7.5–13 mm;

calyx tubular-campanulate, 4–7.5 mm, strigose, veins 10, tube 2–3 mm, lobes subequal, narrowly triangular, orifice open;

corolla pink-purple, often with whitish tips, sometimes nearly wholly whitish, 7–12 mm, banner oblong, 7–14 × 5–7 mm, apex rounded, usually retuse.

stipitate, ellipsoid, 1.5–2 mm, short beaked.

ovoid, 4–5 mm.

1, yellow or pale brown, ellipsoid, 0.9–1 mm, smooth, glossy.

1, tan to brown, mitten-shaped, 3–4.5 mm, roughened.

= 16, 28, 32.