Flora of North America species comparison

0.2–2.5 dm.

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.

petiole 1–4 cm, long hairs absent or sparse, 1.5–2 mm, crisped hairs absent or sparse;

leaflet lobes linear, 10–20 × 1–2 mm, surfaces with long hairs sparse or absent.

1–20-flowered.

0.5–1.5 cm.

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 oblong, ovate, or lanceolate, 2.5–4 × 0.4–1.3 mm;

sepals 3.5–5 mm, apex acute to apiculate;

petals 6–10 × 4–10 mm;

filaments 2.8–4 mm, anthers 0.6 mm;

carpels 15–25.

1–1.5 mm, lightly rugose.

1.5–2 mm.

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

= 14.