Flora of North America species comparison

erect, ascending, or decumbent, branched from base.

ascending, branched from slender, rhizomatous crown.

palmate;

stipules lanceolate-ovate, 0.9–1.1 cm, margins entire, apex acute-acuminate, setaceous, ciliate;

petiole 0.5–5 cm;

petiolules 0.5 mm;

leaflets 3, blades obovate to oblong, 0.9–1.6 × 0.4–1 cm, base cuneate, veins fine, margins denticulate, apex obtuse, obcordate, or emarginate, surfaces hairy.

palmate;

stipules ovate or lanceolate, 0.5–2 cm, margins entire proximally, 1–3-toothed distally, apex acuminate or acute;

petiole 1.5–10 cm;

petiolules to 1 mm;

leaflets 3, blades obovate or elliptic, 0.5–4.2 × 0.3–2.5 cm, base cuneate, veins fine or slightly thickened, margins serrulate, apex acute, rounded, or retuse, apiculate, surfaces appressed-pubescent.

axillary or terminal, solitary or paired, 20–60-flowered, ovoid or oblong, 0.8–1.6 × 0.6–1 cm;

involucres absent.

terminal, 6–30-flowered, globose, 2.3–3.1 × 2–3 cm, rachis prolonged beyond flowers;

involucres absent.

0–1 cm.

bent proximal to flowers, inflorescence appearing inverted, 2.5–12 cm.

absent;

bracteoles absent.

reflexed in fruit, 1.5–2 mm;

bracteoles minute, scalelike, membranous, to 0.3 mm.

5–7 mm;

calyx ellipsoid to urceolate, 3–4 mm, hairy, veins 10, tube 2–3 mm, lobes erect or spreading, unequal, abaxial longest and equal to tube, subulate, orifice open;

corolla pink, 25–35 mm, banner oblong, 2.5–3.5 × 1.5–2 mm, apex retuse.

13–17 mm, sweetly fragrant;

calyx campanulate, 4.5–5 mm, appressed-pubescent, veins 5, tube 2 mm, lobes subequal, linear, orifice open;

corolla white, sometimes with purplish or buff-pink veins, 12–15 mm, banner elliptic, 12–15 × 4 mm, longer than wing and keel petals, apex tapered, sometimes retuse.

ovoid, leathery distally, transversely dehiscent, 2–2.5 mm.

oblong to subglobose, 5 mm.

1, tan or reddish brown, globose to ovoid, 1–1.5 mm, smooth, glossy.

1 or 2, dark brown, ± globose, 1.2 mm, smooth.

= 14.

= 16, 32.