Flora of North America species comparison

erect to ascending, branched.

ascending, cespitose, branched.

palmate;

stipules obliquely ovate, 0.4–1.2 cm, margins entire or slightly serrate, apex acuminate;

petiole 1–5 cm;

petiolules 0.5 mm;

leaflets 3, blades oblanceolate, obovate, or obcordate, 0.4–1.7 × 0.3–1.1 cm, base cuneate, veins fine or slightly thickened, margins setose, often dentate distally, apex usually retuse, rarely rounded, surfaces villous.

mostly basal, palmate;

stipules ovate, 1 cm, margins entire, apex blunt;

petiole 2–6 cm;

petiolules to 1 mm;

leaflets 3, blades obovate or rhombic, 0.6–1.3 × 0.6–1 cm, base cuneate, veins prominent, margins denticulate, apex rounded or retuse, apiculate, surfaces pale abaxially, glabrous.

axillary or terminal, 10–40-flowered, globose, 0.5–1.3 × 0.4–1.2 cm;

involucres flattened or bowl-shaped, 0.4–1 cm, when folded, nearly completely hiding calyces, villous, incised 1/2 their length, lobes 5–12, lanceolate-ovate, entire or slightly toothed proximally, acuminate.

terminal or axillary, 8–15-flowered, appearing turned to one side, obconic, 1.3–1.8 × 1.1–2.5 cm, rachis prolonged beyond flowers, undivided or forked, often bearing sterile flower buds distally;

involucres absent.

1–8 cm.

curved distally proximal to flowers, 3–9 cm.

absent;

bracteoles absent.

reflexed, 1–1.2 mm;

bracteoles minute.

4–6 mm;

calyx campanulate-tubular, 3–5.5 mm, pubescent, veins 10, tube 1.8–2.5 mm, lobes ± equal, triangular-aristate, margins hyaline, wavy, orifice open;

corolla white or pink to lavender, 4–6 mm, banner oblong, 3–6 × 1–2 mm, apex emarginate.

10–13 mm;

calyx purple, campanulate, 5–6 mm, glabrous, veins 10, tube 3.5 mm, lobes equal, subulate, 2 mm, orifice open;

corolla purple, often with white tips, 15 mm, banner obovate, 11–13 × 5–6 mm, apex flared.

broadly ellipsoid, 1.5–2 mm.

not seen.

1, yellow, reddish mottled, oblong, 1.5 mm, smooth.

not seen.

= 16.