Flora of North America species comparison

erect to prostrate, branched from base.

erect, branched distally.

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

involucres absent.

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

involucres absent.

1–1.5 cm.

0.5–2.5 cm.

reflexed, 0.2–0.5 mm;

bracteoles a fringe of red setae.

straight, to 0.5 mm;

bracteoles obtuse, to 0.1 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.

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, ellipsoid, 1.5–2 mm, short beaked.

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

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

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

= 16, 28, 32.

= 14.