Flora of North America species comparison

0.2–1.5(–2) dm.

0.2–2 dm.

palmate, rarely ternate, (1–)2–7(–18) cm;

petiole (0.5–)1–5(–11) cm, long hairs sparse to abundant, ± spreading (to ascending), 1–3(–4) mm, ± weak, glands ± abundant;

leaflets (3–)5(–7), central flabellate to obovate-cuneate or oblanceolate, (0.5–)1–3(–8) × 0.5–2 cm, not or ± petiolulate, distal 2/3–3/4 of margins evenly to unevenly incised 1/5–3/4 to midvein, sometimes deeply lobed as well, teeth 2–9 per side (some secondarily toothed as well), surfaces green, long hairs sparse to common, 1–2 mm (late-season leaves and adaxial surfaces sometimes nearly glabrate), glands sparse to abundant.

ternate, rarely palmate, 2–8(–11) cm;

petiole 1–6(–8) cm, long hairs abundant to dense, spreading to loosely appressed, 1–2(–3) mm, weak to ± stiff, glands ± abundant;

leaflets 3(–5), central obovate to broadly elliptic, 1–3 × 0.8–1.8 cm, often distinctly petiolulate, distal 1/2–2/3 of margins evenly incised ± 1/3 to midvein, teeth 2–3(–4) per side, surfaces green to gray-green, long hairs common to dense, 1 mm, glands abundant.

(1–)3–15-flowered.

1–10-flowered.

0.5–1.5(–2) cm.

0.5–1(–2) cm.

epicalyx bractlets lanceolate-elliptic, 1.5–3(–5) × 0.5–1.5 mm;

hypanthium 2.5–4 mm diam.;

sepals (2.5–)3–5(–6) mm, apex ± acute;

petals nearly white abaxially, pale yellow adaxially, narrowly obcordate, 3–6(–8) × 2.5–5 mm;

filaments 1.5–2.5 mm, anthers 0.5–1 mm;

carpels 4–12, styles 2–3 mm.

epicalyx bractlets lanceolate-elliptic, 2–4 × 1 mm;

hypanthium 3–5 mm diam.;

sepals 3–5 mm, apex acute;

petals ± paler abaxially, bright yellow adaxially, ± obcordate, 3–7 × 2–5 mm;

filaments 1.5–3 mm, anthers 0.6–1 mm;

carpels 5–15, styles 2–3 mm.

1.5–2 mm, ± rugose.

1.5–2 mm, smooth to lightly rugose.

hairs well differentiated from long hairs, ± abundant to dense throughout.

hairs not well differentiated from long hairs, absent or sparse throughout.