Flora of North America species comparison

± erect, loosely cespitose, branched.

procumbent, ascending, or erect, branched.

basal and cauline, palmate;

stipules ovate-lanceolate, 0.5–2 cm, margins usually entire, sometimes lobed, apex acute to acuminate;

petiole 0.5–12 cm;

petiolules 1 mm;

leaflets 3, blades lanceolate or elliptic, 0.5–2 × 0.3–1.3 cm, base cuneate, veins prominent, margins serrate, apex acute, apiculate, surfaces glabrous.

palmate;

stipules obovate-lanceolate, 0.5–0.8 cm, margins entire, apex subulate or cuspidate;

petiole 4–10 cm;

petiolules 0.5 mm;

leaflets 3, blades obcordate or obovate, 0.6–1 × 0.4–0.6 cm, base cuneate, veins fine, margins finely serrate, apex truncate or emarginate, surfaces glabrous.

terminal or axillary, 15–30-flowered, ellipsoid or conic, 1.5–2 × 1–3 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally;

involucres absent.

axillary, 1–5-flowered, loose, oblong, 0.5–1.2 × 0.1–0.5 cm;

involucres absent or bracteoles shallow, cuplike, ± equaling pedicels.

2–13 cm, slightly twisted apically.

0.5–2 cm.

strongly reflexed in fruit, 0.5 mm;

bracteoles minute, lanceolate.

straight or slightly reflexed, 1–3 mm;

bracteoles lanceolate, 1 mm.

12–14 mm;

calyx pink to purple, campanulate, 3–3.5 mm, glabrous, veins 10 (5 sometimes faint), tube 1.5–1.7 mm, lobes subequal, triangular-subulate, orifice open;

corolla pink to deep purple, 12–14 mm, banner oblong, 12–14 × 4–5 mm, apex rounded or retuse.

5–10 mm;

calyx campanulate, 4–4.5 mm, glabrous, veins 10, tube 2.5–3 mm, lobes unequal, triangular, orifice open;

corolla pink or white, 5–9 mm, banner oblong, 5–9 × 2–3 mm, apex rounded.

obliquely ellipsoid, 5 mm.

stipitate, ellipsoid-oblong, 6–10 mm.

1 or 2, brown, often purple-mottled, flattened ovoid, 2–3 mm, smooth.

4–9, black or dark brown, ellipsoid-globose, 1–1.5 mm, smooth, glossy.

= 16.

= 16.