Flora of North America species comparison

0.2–1.5(–2) 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.

usually palmate, sometimes ternate, 2–8 cm;

petiole 1–7 cm, long hairs common, spreading to ascending, 1.5–2.5 mm, weak to ± stiff, glands abundant;

leaflets (3–)5, central oblanceolate, 0.5–1.5(–2) × 0.4–0.8 cm, scarcely petiolulate, distal ± 3/4 of margins ± evenly incised 1/2–3/4 to midvein, teeth 2–3(–4) per side, surfaces green, long hairs sparse to common, 0.5–1.5 mm, glands abundant.

1–7-flowered.

0.5–1(–2) 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 ovate-elliptic, 1–2.5 × 1–1.5 mm;

hypanthium 2–3 mm diam.;

sepals 2.5–4 mm, apex obtuse;

petals ± paler abaxially, bright yellow adaxially, ± obcordate, 3–7 × 2.5–4 mm;

filaments 1.3–2 mm, anthers 0.5 mm;

carpels 5–12, styles 2–2.5 mm.

0.9–1.2 mm.

1.5–1.8 mm, smooth to lightly rugose.

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