Flora of North America species comparison

mostly absent.

0.2–1.5(–2) dm.

(0.2–)1–2.5(–3.5) 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.

3–7(–10) cm;

petiole 2–5(–7.5) cm, hairs absent or sparse, appressed to spreading, 0.5–0.8 mm, stiff, glands absent or nearly so;

leaflets 7–11, central one oblanceolate-elliptic, 1–2(–3) × 0.3–0.8 cm, distal 1/4 or less of margin incised less than 1/10(–1/4) to midvein, teeth 1–2(–5) per side, surfaces similar, abaxial pale green to reddish, often glaucous, hairs absent or sparse to common on primary veins, appressed to ascending, 0.6–1 mm, stiff, adaxial green or reddish, glabrous or nearly so.

1–3;

stipules fused with all or most of petiole, free portion shorter than fused portion.

(1–)3–15-flowered.

2–5-flowered.

0.5–1.5(–2) cm.

1–3 cm (proximalmost to 6 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 to narrowly lanceolate, 3–5 × 0.7–1(–1.5) mm;

hypanthium 2.5–3 mm diam.;

sepals 4–6 mm, apex acute;

petals (4–)6–8 × 4–6 mm;

filaments 1.6–2 mm, anthers 0.4–0.6 mm;

carpels 40–50, styles 0.7–0.9 mm.

1.5–2 mm, ± rugose.

1.1–1.3 mm, smooth.

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

= 28 (Eurasia).