Flora of North America species comparison

often sheathed with marcescent whole leaves.

initially ascending to erect, soon becoming prostrate, flagelliform, not branched, eventually rooting at some nodes, (0.3–)0.5–12 dm.

ascending to nearly erect, 0.3–1.5 dm.

± persistent, usually palmate, 2–9(–11) cm;

petiole 1–7(–8) cm, long hairs abundant to dense, appressed to spreading, 1.5–3 mm, mostly ± weak, glands absent or sparse;

leaflets (3–)5(–7), central mostly ± obovate to cuneate, sometimes narrowly so, (0.5–)1–4(–6) × (0.5–)0.8–2(–3) cm, distal 1/2 of margin incised 1/4–1/3 to midvein, teeth 2–7 per side, surfaces similar to ± dissimilar, abaxial green to silvery white, sparsely to densely hairy, adaxial green, sparsely to moderately hairy.

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 proximal to 1st flowering node, not fully expanded at anthesis, usually palmate, 2–7(–9) cm;

petiole (0.5–)1–6(–7.5) cm;

leaflets (3–)5, ± resembling those of basal leaves, apex rounded to obtuse.

0–1.

solitary flowers at stolon nodes.

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

(1–)2–5(–9) cm.

1–1.5 cm, proximal to 3 cm.

5-merous;

epicalyx bractlets linear to lanceolate-elliptic, (2–)3–5(–6) × 0.8–1.5 mm, slightly smaller than to ± equal to sepals;

hypanthium 2.5–5 mm diam.;

sepals (2–)3–5(–6) mm, apex acute;

petals 4–6(–8) × 3.5–6.5(–8) mm, apex rounded to slightly retuse;

stamens ca. 20, filaments 0.5–2 mm, anthers 0.4–1 mm;

carpels 20–40, styles 0.8–1.4 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.

1.2–1.4 mm, smooth.

1–1.3 mm.

erect, stout, 0.5–2 cm.

= 28.