Flora of North America species comparison

usually not sheathed with marcescent whole leaves.

0.2–2.5 dm.

ascending to erect, (0.5–)1–3 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.

often both ternate and palmate on same plant, sometimes subpalmate, 4–10 cm;

petiole 2.5–8 cm, long hairs common to abundant, loosely appressed to ascending-spreading, 1–2 mm, weak to ± stiff, ± verrucose, short and/or crisped hairs sparse to abundant, cottony hairs absent, glands sparse to common;

leaflets 3–5, proximalmost separated by 0(–2) mm, central oblong to obovate, 1.4–2.5(–5) × 0.6–1.3(–2) cm, petiolules 1–3(–5) mm, distal 2/3–3/4 of margin incised 1/2–3/4+ to midvein, teeth 3–5 per side, 3.5–6 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(–1.5) mm, ± stiff, short and/or crisped hairs sparse to common, sometimes abundant, cottony hairs absent, glands sparse to abundant.

1–3.

1–20-flowered.

7–12(–20)-flowered, ± open, branch angle 5–30(–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 narrowly lanceolate, 2–3.5 × 0.6–1 mm;

hypanthium 2.5–3.5 mm diam.;

sepals 2.5–4 mm, apex subacute to acute, glands ± common, usually not obscured;

petals pale yellow, not overlapping, 3–5(–6) × 3–4(–5) mm, slightly longer than sepals;

filaments 0.8–1.8 mm, anthers 0.4 mm;

carpels 30–60, styles 0.7–0.9 mm.

1–1.5 mm, lightly rugose.

1.2 mm.

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