Flora of North America species comparison

0.2–2.5 dm.

3–7(–10) 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.

± subpalmate, sometimes palmate, (4–)6–15(–21) cm;

petiole (2–)4–10(–15) cm, long hairs sparse to abundant, spreading to weakly appressed, 0.5–2(–3) mm, weak to ± stiff, glands sparse to abundant;

leaflets (5–)7, on less than distal 1/10 (1–5[–10] mm) of leaf axis, central one 1–6(–7) × 1–2(–3) cm, petiolules 0(–6) mm, distal 1/2–3/4 (sometimes nearly whole), margin incised 1/5 or less to midvein, teeth 4–10(–15) per side, 1–2(–3) mm, teeth apex ± obtuse, surfaces ± similar, abaxial green, straight hairs sparse to abundant, especially on veins, 0.5–1.5 mm, cottony hairs absent, glands ± sparse or absent, adaxial slightly paler green, hairs shorter and sparser.

stipules usually entire.

1–20-flowered.

(4–)8–40(–70)-flowered.

0.5–1.5 cm.

0.3–2 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 lanceolate-elliptic, 3.5–8 × 1–1.5(–2) mm;

sepals 4–8(–10) mm, apex acuminate;

petals dark reddish proximally, reddish orange distally, (3.5–)5–9 × 5–10 mm;

filaments 1.5–2.5 mm, anthers 0.8 mm;

carpels 30–40, styles 2–3 mm.

1–1.5 mm, lightly rugose.

1.5–2 mm, lightly rugose.

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