Flora of North America species comparison

0.2–2.5 dm.

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

palmate, 1.5–9.5 cm;

petiole 1–7 cm, long hairs abundant to dense, spreading to appressed, 1–2 mm, weak to stiff, glands ± abundant;

leaflets 5, central cuneate-elliptic to obovate, 0.5–2.5 × 0.3–1.5 cm, scarcely to distinctly petiolulate, distal 1/3 of margins evenly incised ± 1/4 to midvein, teeth 2–4(–5) per side, surfaces gray-green, long hairs abundant to dense, 1–1.5 mm, glands ± abundant, sometimes obscured.

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).

1–20-flowered.

(2–)3–8(–12)-flowered.

0.5–1.5 cm.

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

epicalyx bractlets lanceolate to ovate-elliptic, 1–3.5 × 1–1.5 mm;

hypanthium 2–4 mm diam.;

sepals 2–5 mm, apex ± acute;

petals ± paler abaxially, bright yellow adaxially, ± obcordate, 3–6 × 2–5 mm;

filaments 1–2 mm, anthers 0.5 mm;

carpels ca. 20, styles (1.2–)1.5–2 mm.

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.

1–1.5 mm, lightly rugose.

1.2 mm.

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

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