Flora of North America species comparison

ascending to erect, 0.5–2(–3) dm, lengths 1.5–3 times basal leaves.

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.

2-ranked, usually palmate, sometimes ternate, 2–10(–15) cm;

stipules: apex obtuse to truncate, rarely acute;

petiole 0.5–6.5(–10) cm, long hairs usually ± sparse, usually ± ascending, sometimes spreading or appressed, 1–2.5 mm, weak to ± stiff, glands absent or sparse;

leaflets 3–5, central obovate, 1.5–3(–3.5) × 0.8–1.5(–2) cm, petiolule 0–1 mm, margins flat, not lobed, distal 1/2–2/3 evenly incised 1/3–1/2 to midvein, teeth 3–4(–5) per side, not secondarily toothed, surfaces similar, green, not glaucous, hairs absent or sparse, rarely common, 0.8–1.5 mm, glands absent or sparse to abundant (fewer adaxially).

(2–)3–8(–12)-flowered.

straight, 1–3(–4) cm in flower, to 6 cm in fruit.

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 ovate or narrowly ovate, (1.5–)2.5–4 × (0.8–)1–1.3 mm, margins flat;

hypanthium 3–4 mm diam.;

sepals (3–)4–5(–6) mm, apex broadly acute;

petals yellow, 4–7(–9) × 4–8 mm;

filaments 1.8–2.2 mm, anthers 0.3–0.6 mm;

carpels 30–40, styles columnar-filiform, not papillate-swollen proximally, 1–1.6 mm.

0.9–1.2 mm.

1.2 mm.

= 42; 28, 35, 49 (Europe).