Flora of North America species comparison

absent or inconspicuous, uncolored.

mostly ± ascending, 0.5–3(–4.5) dm.

soon becoming prostrate, flagelliform, not branched, rooting at some nodes, 1.5–10+ 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.

persistent, usually palmate, 3–12(–30) cm;

petiole 2–10(–25) cm, long hairs sparse to abundant, tightly to loosely appressed, 0.5–1.5 mm, usually stiff, sometimes weak, glands absent;

leaflets (3–)5(–7), central oblanceolate to obovate, (0.5–)2–4(–7) × 0.3–1.5(–2.5) cm, distal ± 3/4 of margin incised 1/4–1/3 to midvein, teeth (3–)4–12 per side, surfaces similar, green, sparsely to moderately hairy.

(0–)1–2(–3).

2–3(–4) proximal to 1st flowering node, usually well expanded at anthesis, usually palmate, 2–8(–20) cm;

petiole 0.5–6(–15) cm;

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

2–10(–20)-flowered.

solitary flowers at stolon nodes.

(0.5–)1–3(–6.5) cm.

(2.5–)4–12(–15) 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.

5(–10)-merous;

epicalyx bractlets elliptic or oblong to ovate, 4–10 × 1.5–3.5 mm, often much larger than sepals (especially in fruit);

hypanthium 4–7 mm diam.;

sepals (3–)5–7 mm, apex broadly acute to obtuse;

petals 7–9(–12) × 6–9(–11) mm, apex usually ± retuse;

stamens ca. 20, filaments (0.5–)1–2.5(–2.8) mm, anthers (1–)1.3–2 mm;

carpels 60–120, styles 0.6–1.3 mm.

1.2–1.6 mm.

1.3–1.6 mm, ± rugose.

erect, slender to stout, 2–6+ cm.

= 28 (Eurasia).