Flora of North America species comparison

± erect, loosely cespitose, branched.

prostrate or creeping, branched, rooting at nodes.

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 linear or lanceolate, dilated proximally, 1.3–2 cm, margins entire, apex subulate or acuminate;

petiole 1–9 cm;

petiolules 1 mm;

leaflets 3, blades ovate, obovate, or elliptic, 0.5–3 × 0.3–1.5 cm, base cuneate, veins prominent, thickened, curved, margins spinulose-denticulate, apex obtuse, often retuse, surfaces hairy abaxially, glabrous adaxially.

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, erect or ascending, 10–30-flowered, globose, 0.8–2 × 0.8–2 cm;

involucres cup-shaped, composed of bracteoles, bracteoles lanceolate-oblong, 3–6 mm, distinct or connate proximally.

2–13 cm, slightly twisted apically.

3–17 cm.

strongly reflexed in fruit, 0.5 mm;

bracteoles minute, lanceolate.

straight, to 0.5 mm;

bracteoles linear or lanceolate, 2–3 mm, acuminate or 2-fid.

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.

6–8 mm;

calyx tubular, inflated in fruit, markedly asymmetric-bilabiate, 2.5–7 mm, usually pilose to woolly, sometimes glabrescent, veins 5–10, connected by reticulating lateral veins, tube 2–7 mm, lobes unequal, abaxial equal to or longer than tube, straight, adaxial spreading in fruit, shorter than tube, very unequal in fruit, orifice open;

corolla white to pink, 5–8 mm, banner oblong-lancelate, 5–8 × 2 mm, apex emarginate to crenulate.

obliquely ellipsoid, 5 mm.

ovoid, 2.5–3 mm, long-beaked.

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

1 or 2, tan or brown-spotted, globose-reniform, 1–1.4 mm, smooth, dull.

= 16.

= 16.