Flora of North America species comparison

often sheathed with marcescent whole leaves.

0.2–1.6 dm, lengths 1/2–3(–4) times basal leaves.

ascending to nearly erect, 0.3–1.5 dm.

usually palmate to subpalmate, sometimes subpinnate, 1(–2) pair of leaflets separate from terminal leaflets, distal leaflets distinct, 2–10(–15) cm;

petiole 1–7(–10) cm, straight hairs ± abundant, ± appressed, 1–3 mm, stiff to weak, cottony hairs present, sometimes absent;

leaflets 5(–7), on tip or to distal 1/4 of leaf axis, separate to ± overlapping, proximal pair separated from others by 0–5(–10) mm of leaf axis, central leaflets narrowly oblanceolate to obovate, 1–3(–7) × 0.4–1.2 cm, petiolules 0–2(–4) mm, distal 1/4 to whole margin incised 1/4–3/4+ to midvein, teeth (1–)2–5(–10) per side, separate, 1–6 mm, surfaces strongly to ± dissimilar, abaxial grayish to white, straight hairs ± abundant, ± appressed, 0.5–2 mm, weak to stiff (especially on veins), cottony hairs ± dense, rarely sparse, glands sparse or obscured, adaxial green to grayish, straight hairs common to abundant, appressed, 0.5–2 mm, mostly stiff, sometimes weak or mixed, cottony hairs absent or sparse, rarely common, glands ± sparse.

often both ternate and palmate or subpalmate on same plant, 1–5 cm;

petiole 0.5–3 cm, long hairs sparse to dense, ± appressed to ascending, (1–)1.5–2.5 mm, soft to ± weak, smooth, short hairs absent or sparse, crisped(/cottony) hairs sparse to common, glands absent or sparse;

leaflets 3–5, proximalmost separated by 0–2 mm, central broadly elliptic to obovate, 0.5–2 × 0.3–1.4 cm, petiolules ± 1 mm, distal 2/3 to nearly whole margin incised 2/3–3/5+ to midvein, teeth (2–)3–4 per side, 3–5 mm, apical tufts 1–1.5 mm, abaxial surfaces grayish white to white, long hairs common to abundant, cottony(/crisped) hairs dense, short hairs and glands absent or obscured, adaxial grayish green to gray, long hairs abundant, 1–2 mm, soft (grading to cottony), short/crisped/cottony hairs common to abundant, glands sparse to common.

0–1.

(1–)2–12-flowered.

1–3(–4)-flowered, open, branch angle 20–40°.

1–2(–3) cm.

1–1.5 cm, proximal to 3 cm.

epicalyx bractlets lanceolate to narrowly ovate to linear-elliptic, sometimes doubled, (2–)2.5–5 × 1–1.5 mm;

hypanthium 3–6 mm diam.;

sepals 3.5–6 mm, apex acute;

petals (2.5–)4–9 × (2–)3–7 mm;

filaments 1–3 mm, anthers 0.5–1 mm;

carpels (7–)10–30, styles (1–)1.5–2 mm.

epicalyx bractlets lanceolate to ovate, 3–4 × 1–2 mm;

hypanthium 2.5–3.5 mm diam.;

sepals 3.5–5 mm, apex obtuse to subacute, glands sparse to common, often ± obscured;

petals pale yellow, often overlapping, 5–7 × 5–8(–9) mm, distinctly longer than sepals;

filaments 0.5–1.5 mm, anthers ± 0.5 mm;

carpels 30–60, styles 0.8–0.9 mm.

1.5–2.5 mm, smooth to lightly rugose.

1–1.3 mm.

= 70.