Flora of North America species comparison

erect to prostrate, branched from base.

decumbent to ascending, much-branched.

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, 0.3–1.2 cm, margins entire, serrate, or slightly lacerate, apex acute to acuminate;

petiole 1–4.5 cm;

petiolules 0.1–0.5 mm;

leaflets 3, blades obovate, oblanceolate, or elliptic, 0.3–2 × 0.2–0.5 cm, base cuneate, veins prominent, margins ± dentate, serrate, or setose, apex acute, rounded, or retuse, surfaces glabrous or slightly villous.

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

involucres absent.

axillary or terminal, 1–9-flowered, solitary or subglobose, 1–1.6 × 0.3–1.2 cm;

involucres campanulate, 2–5 mm, incised nearly to base, lobes 2–8, lanceolate.

1–1.5 cm.

0.5–2 cm.

reflexed, 0.2–0.5 mm;

bracteoles a fringe of red setae.

erect, 1 mm;

bracteoles absent.

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.

10–16 mm;

calyx tubular, 2–10 mm, glabrous or pubescent, veins 10, tube 4–7 mm, lobes equal, triangular-subulate, orifice open;

corolla white, pink, or lavender, keel petals usually purple-spotted, 8–16 mm, banner oblong, 8–13 × 2–5 mm, apex emarginate.

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

oblong, 2–4 mm.

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

1 or 2, brown, mottled, mitten-shaped, 1–2 mm, dull.

= 16, 28, 32.

= 16.