Flora of North America species comparison

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

0.4–1.5(–1.7) dm, lengths 2–3 times basal leaves.

± 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.

pinnate, usually at least 2 pairs of leaflets separate from terminal leaflets, distal leaflets usually distinct, 2–6 cm;

petiole 0.2–1.5 cm, straight hairs abundant, ± appressed, 1–1.5 mm, stiff, cottony hairs absent, glands absent or sparse;

leaflets 5–9, on distal (1/4–)1/2–3/4+ of leaf axis, overlapping, proximal pair separated from others by 2–10 mm of leaf axis, central leaflets oblanceolate to narrowly obovate, (0.5–)1–2(–2.5) × 0.5–1.2 cm, petiolules 0–1 mm, distal 3/4 of margins incised 3/4 to midvein (sometimes medially cleft as well), teeth 3–4 per side, separate to slightly overlapping, (1–)2–5 mm, surfaces ± to strongly dissimilar, abaxial grayish to white, straight hairs ± abundant, ± appressed, 1 mm, weak to stiff (especially on veins), cottony hairs abundant to dense, glands absent or obscured, adaxial greenish to grayish, straight hairs ± abundant, appressed, 0.5–1.5 mm, stiff, cottony hairs absent, rarely sparse, glands sparse.

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.

solitary flowers at stolon nodes.

3–15-flowered.

(1–)2–5(–9) cm.

1–2.5(–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 ± ovate-elliptic, 2–4 × 0.8–2 mm;

hypanthium 2.5–5 mm diam.;

sepals 3.5–5 mm, apex ± acute;

petals 4–6 × 3–5 mm;

filaments 1–2 mm, anthers 0.5–1 mm;

carpels 15–20, styles 2 mm.

1.2–1.4 mm, smooth.

1.5–2 mm, smooth to faintly rugose.

erect, stout, 0.5–2 cm.

= 28.