Flora of North America species comparison

prostrate to ascending, branched.

erect, branched from base.

palmate;

stipules ovate, 0.5–3 cm, margins entire or slightly toothed, ciliate, apex acute to acuminate;

petiole 1–20 cm;

petiolules 1 mm;

leaflets 3, blades broadly obcordate, 0.8–2.8 × 1–3 cm, base cuneate, veins delicate, widely spaced, margins mostly entire, slightly dentate distally, apex emarginate, surfaces appressed-sericeous.

palmate;

stipules elliptic-ovate, 0.6–1 cm, margins entire, toothed, or remotely lobed, ciliate, apex acuminate;

petiole 0.5–7 cm;

petiolules 1 mm;

leaflets 3, blades obovate or elliptic, 0.5–2 × 0.2–1 cm, base cuneate, veins obscure or slightly thickened, margins serrate, apex acute or obtuse, often retuse, surfaces pubescent.

axillary, elongate and reflexed, pushing into substrate after anthesis, fertile flowers 2–7, sterile flowers 0–80, globose or cylindric, 0.5–1.5 × 0.8–1.5 cm;

involucres absent.

axillary or terminal, 25–50-flowered, ovoid-ellipsoid, 1–1.8 × 0.8–1.5 cm;

involucres absent.

2–6.5 cm.

0.5–10 cm.

reflexed after anthesis, 0.2–0.4 mm;

bracteoles absent.

absent;

bracteoles absent.

fertile ones 7–15 mm;

calyx tubular, 5–6 mm, glabrous or hairy, veins indistinct, tube 3–4 mm, lobes subequal, pubescent or glabrous, spreading, orifice open;

corolla white, pink, or pink-striped, 7–10 mm, banner ovate-elliptic, 7–10 × 1.5–2 mm, apex rounded;

sterile flowers 4–7 mm;

calyx teeth linear;

corolla absent.

6–9 mm;

calyx campanulate, 6–8 mm, densely pubescent, veins 10 (additional faint veins sometimes present), tube 1–2 mm, lobes unequal, narrowly triangular, subulate, sinuses rounded, lobes divergent, orifice open;

corolla white with purple tips, 4–6 mm, banner narrowly elliptic, 6–7 × 2 mm, apex acute, slightly erose.

subterranean, obovoid, 3–4 mm.

broadly ellipsoid, 2.8–3.2 mm.

1, purplish black, ellipsoid, 2.6–3 mm, smooth, dull.

1 (or 2), yellow or brown, often red-mottled, ellipsoid, 2–2.6 mm, smooth, glossy.

= 16.

= 16.