Flora of North America species comparison

absent or inconspicuous, uncolored.

mostly ± ascending, 0.5–3(–4.5) dm.

decumbent to nearly erect, (0.2–)0.5–2.6 dm.

often 2-ranked, palmate, sometimes subpalmate, 2–20 cm;

petiole (0.5–)1–8(–14) cm, long hairs often absent, sometimes sparse to abundant, usually appressed, 1–2 mm, weak to ± stiff, short, crisped, and cottony hairs absent, glands absent or sparse;

leaflets 5–6(–7), sometimes with 1–2(–4) additional, smaller, entire leaflets, on tip or to distal 1/10(–1/4) of leaf axis, separate, largest ones oblanceolate or cuneate to obovate, 1–4(–6) × 0.5–1.5(–2) cm, margins flat, distal 1/3–1/2(–2/3) ± evenly incised 1/2 or nearly to midvein, undivided medial blade 1.5–7(–10) mm wide, teeth 1–3(–5) per side, broadly lanceolate or linear to narrowly oblong, 1–5(–8) mm, surfaces similar adaxial ± less hairy, ± blue-green, usually glaucous, long hairs sparse to abundant (often restricted to veins, distal teeth, and margins), short, crisped, and cottony hairs absent, glands absent or sparse.

subpinnate to subpalmate, 1.5–10(–17) cm;

petiole 0.5–4(–8) cm, long hairs ± abundant, spreading to loosely appressed, 0.5–2 mm, weak to stiff, short hairs absent or sparse, cottony or crisped hairs absent, glands sparse to abundant;

leaflets (1–)2–3 per side, on distal 1/6–1/3(–1/2) of leaf axis, separate to slightly overlapping, terminal ones oblanceolate-elliptic to narrowly obovate, (0.5–)1–2.5(–3.5) × 0.4–1(–1.3) cm, margins strongly revolute, incised 3/4+ to midvein, undivided medial blade 1.5–3(–5) mm wide, teeth (2–)3–5(–6) per side, ± linear-elliptic to rarely ovate or oblanceolate, surfaces ± dissimilar, abaxial ± grayish, rarely white, long hairs ± abundant especially on veins, 1 mm, weak, short hairs absent or sparse, cottony hairs absent, crisped hairs sparse to abundant, glands ± abundant, sometimes obscured, adaxial green to gray-green, long hairs sparse to abundant, loosely appressed, 0.5–1(–2) mm, short hairs absent or sparse, cottony and crisped hairs absent, glands ± abundant.

(0–)1–2(–3).

1–2.

2–10(–20)-flowered.

(1–)3–12(–20)-flowered, congested, scarcely opening in fruit.

(0.5–)1–3(–6.5) cm.

0.2–0.5 cm (proximal to 1.2 cm).

epicalyx bractlets lanceolate to elliptic, 2–5 × 0.8–1.2(–1.6) mm, hairs sparse to common, rarely abundant, ± ascending, glands absent or inconspicuous;

hypanthium 3.5–5 mm diam.;

sepals (2–)2.5–4.5(–5) mm, apex acute to short acuminate;

petals (4–)5–10(–12) × 4–9(–10) mm;

filaments 1.5–2.5(–3) mm, anthers 0.4–0.7(–0.9) mm;

carpels 25–40, styles filiform above papillate-swollen base, 1.5–2.5(–3) mm.

epicalyx bractlets elliptic to linear, 1.5–3 × (0.3–)0.5–1.2 mm, lengths 1/2–3/4 times sepals, margins flat;

hypanthium 2.5–5 mm diam.;

sepals 2–5 mm, apex usually ± acute to obtuse, rarely acuminate, abaxial surfaces: venation faint, glands abundant, evident;

petals pale yellow, 2–5 × 2–4 mm, lengths ± equal to sepals;

filaments 0.5–2 mm, anthers 0.3–0.7 mm;

carpels 20–60, styles papillate-swollen in proximal 1/2–3/4+, 0.8–1.2 mm.

1.2–1.6 mm.

1 mm, smooth to faintly rugose.