Flora of North America species comparison

soon becoming prostrate, ± flagelliform, usually openly branched, eventually rooting at some nodes, (0.3–)1.5–7+ dm.

± persistent, ternate or palmate, 2–10(–12) cm;

petiole 1–7(–8) cm, long hairs sparse to abundant, appressed, 0.5–1 mm, stiff, glands absent;

leaflets 3–5, central ± obovate to cuneate, 1–3(–3.5) × 0.8–2(–2.5) cm, distal ± 1/2 of margin incised 1/4–1/3(–1/2) to midvein, teeth 2–4 per side, surfaces similar, green, sparsely to moderately hairy.

petiole 1–4 cm, long hairs absent or sparse, 1.5–2 mm, crisped hairs absent or sparse;

leaflet lobes linear, 10–20 × 1–2 mm, surfaces with long hairs sparse or absent.

2–3(–4) proximal to 1st flowering or branching node, usually well expanded at anthesis, usually ternate, 2–6(–10) cm;

petiole 0.3–4(–8) cm;

leaflets (3–)5, ± resembling or narrower than those of basal leaves, narrowly cuneate, 1–2(–3.5) × 0.8–2(–2.5) cm, apex rounded to obtuse.

solitary flowers at stolon nodes.

(1–)3–10(–17) cm.

4(–5)-merous;

epicalyx bractlets narrowly elliptic to oblong or ovate, 3–4(–7) × 1–1.5 mm, smaller than to slightly larger than sepals;

hypanthium 2–4 mm diam.;

sepals (3–)4–6 mm, apex broadly acute or acuminate;

petals 6–9 × 5–9 mm, apex ± retuse;

stamens 15–20, filaments 0.8–1.2 mm, anthers 0.8–1.2 mm;

carpels 20–50, styles 0.9–1.5 mm.

epicalyx bractlets oblong, ovate, or lanceolate, 2.5–4 × 0.4–1.3 mm;

sepals 3.5–5 mm, apex acute to apiculate;

petals 6–10 × 4–10 mm;

filaments 2.8–4 mm, anthers 0.6 mm;

carpels 15–25.

1–1.5(–1.8) mm, ± smooth.

1.5–2 mm.

± erect, stout to slender, 1–4 cm.

= 28, 56 (Europe).

= 14.