Flora of North America species comparison

mostly absent.

(0.2–)1–2.5(–3.5) dm.

petiole 1–3.5 cm, long hairs ± abundant, 0.5–1.5 mm, short hairs absent or sparse, rarely common;

leaflets 0.2–1 cm, lobes oblanceolate to narrowly elliptic, (0.5–)1–2 mm wide, longs hairs ± abundant, short hairs absent or sparse, 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.

2–5-flowered.

1–3 cm (proximalmost to 6 cm).

epicalyx bractlets broadly lanceolate to elliptic, 1.5–4(–5) × (0.4–)0.8–1.3 mm;

sepals 2–4(–5) mm, apex ± acute;

petals (3–)4–6 × (2–)3–5 mm;

filaments 1–2(–2.5) mm, anthers 0.4–0.6 mm;

carpels 20–50.

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.

0.9–1.2 mm.

1.1–1.3 mm, smooth.

= 28 (Eurasia).