Flora of North America species comparison

erect, branched.

erect, branched.

palmate;

stipules lanceolate or ovate, 1–2 cm, margins dentate or lacerate, apex acuminate;

petiole 1–8 cm;

petiolules 0.5 mm;

leaflets 3, blades linear, lanceolate, or elliptic, 1–5 × 0.2–1.5 cm, base cuneate, veins fine, margins serrate, apex acute, blunt, or retuse, surfaces glabrous.

palmate;

stipules lanceolate, 1–2 cm, margins denticulate distally, plumose-ciliate, apex caudate;

petiole 1–8 cm;

petiolules 1+ mm;

leaflets 3, blades broadly elliptic to oblong, 1–5 × 0.5–1.5 cm, base cuneate, veins fine, margins denticulate, apex usually mucronate, sometimes retuse, surfaces hairy.

axillary or terminal, 10–50-flowered, globose or ovoid, 1–3.5 × 1–3 cm;

involucres flattened or bowl-shaped, 3–9 mm, when folded, not hiding flowers except proximally, incised 1/4–1/3 their length.

terminal, 25–100-flowered, ovoid, elongate in fruit, 1–2.5 × 1–1.5 cm;

involucres minute or absent.

2–15 cm.

0.5–9 cm.

erect, 0.5 mm;

bracteoles absent.

absent;

bracteoles absent.

12–20 mm;

calyx tubular-campanulate, slit between adaxial lobes, 6–9 mm, glabrous, veins 10–15, tube 3–7 mm, lobes unequal, triangular or subulate, usually 3-fid or shouldered below apex, orifice open;

corolla usually white with purple spot, sometimes lavender or pink or all white, 10–18 mm, banner narrowly oblong, 12–20 × 3–4 mm, apex obtuse or retuse.

13–16 mm;

calyx cylindric (campanulate in fruit), 6–8 mm, appressed-hairy, veins 10, tube 1–2 mm, lobes erect to slightly spreading, equal or abaxial 2 slightly longer, narrowly triangular, orifice open, hairy;

corolla cream or yellowish white, 13–16 mm, banner narrowly spatulate, 13–16 × 3–4 mm, apex obtuse.

ellipsoid, 3 mm.

ellipsoid, leathery distally, transversely dehiscent, 2.2–2.5 mm.

1 or 2, yellow, mottled, globose-ellipsoid, 1.5–2.5 mm, smooth.

1, yellow, ovoid, 2–2.2 mm, smooth, glossy.

= 16.

= 16.