Flora of North America species comparison

not sheathed with marcescent whole leaves.

0.2–2.5 dm.

ascending to nearly erect, (0.3–)0.5–2 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.

usually both ternate and palmate on same plant, rarely subpalmate, 1–9 cm;

petiole 0.5–6 cm, long hairs common to abundant, ± appressed to ascending-spreading, (0.5–)1–1.5(–2) mm, usually stiff, rarely weak, verrucose, short-crisped hairs sparse to common, cottony hairs absent, glands ± sparse;

leaflets 3–5, proximalmost separated by 0(–1) mm, central oblanceolate to obovate, 0.5–2.5 × 0.4–1.2 cm, petiolules 0–1 mm, distal ± 3/4 of margin incised 1/2–3/4, rarely +, to midvein, teeth 2–6 per side, 1–5 mm, apical tufts 0.5–1 mm, abaxial surfaces grayish white to white, long hairs common to abundant, cottony-crisped hairs usually dense, short hairs and glands absent or obscured, adaxial green to grayish green, long hairs sparse to common, 0.5–1.5 mm, usually stiff, short and/or crisped hairs sparse to common, cottony hairs absent, glands sparse to common.

1–2.

1–20-flowered.

1–6(–8)-flowered, open, branch angle 20–50°.

0.5–1.5 cm.

(0.5–)1–2 cm, proximal to 3 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 linear to oblong-lanceolate, 2–3 × 0.7–1.3 mm;

hypanthium 3–4 mm diam.;

sepals 3–5 mm, apex subacute, glands ± common, not obscured;

petals yellow, ± overlapping, 3–6(–7) × 4–5 mm, usually longer than sepals;

filaments 0.5–1.5 mm, anthers 0.3–0.5 mm;

carpels 30–50, styles 0.8–1.2 mm.

1–1.5 mm, lightly rugose.

1–1.3 mm.

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