Flora of North America species comparison

erect, branched.

ascending, cespitose, branched.

palmate;

stipules ovate-lanceolate, 1–1.5 cm, margins entire, sometimes ciliate, apex acuminate;

petiole 1–13 cm;

petiolules 0.5 mm;

leaflets 3, blades elliptic to oblong or obovate, 0.8–3.5 × 0.5–1.5 cm, base cuneate, veins thickened, margins serrate proximally, obscurely denticulate distally, apex usually rounded or retuse, rarely acute, surfaces glabrous.

palmate;

stipules ovate or lanceolate, 0.6–1.5 cm, margins entire, apex acute;

petiole 1–7 cm;

petiolules to 1 mm;

leaflets 3, blades obcordate, obovate, or elliptic, 1–1.9 × 0.5–1.1 cm, base cuneate, veins fine to slightly thickened, margins setose, apex obtuse, rounded, or emarginate, apiculate, surfaces glabrous.

axillary or terminal, 10–30-flowered, ovoid to subglobose, 0.7–2.2 × 0.5–2 cm;

involucres a narrow rim, 0.5 mm, membranous, dentate.

terminal, 12–30-flowered, ovoid, 1–2 × 1.5–3 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally;

involucres absent.

2.5–12 cm.

slender, bent distally, just below flowers, 5–20 cm.

erect becoming reflexed, 0.5–6 mm;

bracteoles linear or cup-shaped, to 1 mm.

strongly reflexed, 1–1.2 mm;

bracteoles minute, cuplike.

6–13 mm;

calyx broadly campanulate, 5–11 mm, glabrous, veins 10, tube 1–5 mm, lobes unequal, elliptic to linear, margins hyaline, dentate or pectinate, ciliate, sinuses narrow, orifice open;

corolla white, pink, or purple, 5–13 mm, banner broadly ovate, 6–13 × 4–7 mm, apex rounded, apiculate.

12–14 mm;

calyx deep violet, campanulate, gibbous, 3–5 mm, glabrous, veins 5, tube 1.5–2 mm, lobes unequal, triangular-subulate, orifice open;

corolla lavender to purplish, 11–12 mm, banner curved, oblanceolate, 10–12 × 3–4 mm, apex narrow, rounded, slightly emarginate.

short-stipitate, ovoid, 5–10 mm.

ellipsoid, 3–4 mm.

1 or 2, brown, mottled, ovoid, 2.5–3 mm, smooth.

1 or 2, brown, ellipsoid, 1.2–1.5 mm, smooth.

= 16.