Rootstocks ± erect, stout to slender, 1–4 cm. Stems soon becoming prostrate, ± flagelliform, usually openly branched, eventually rooting at some nodes, (0.3–)1.5–7+ dm. Basal leaves ± 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. Cauline leaves 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. Inflorescences solitary flowers at stolon nodes. Pedicels (1–)3–10(–17) cm. Flowers 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. Achenes 1–1.5(–1.8) mm, ± smooth. 2n = 28, 56 (Europe).
More
Procumbent perennial herb arising from a slender, stoloniferous stock; stolons up to 40-(80) cm long; stems brown or purplish, hairy, rooting at nodes. Lvs in persistent and open basal rosettes, and cauline; petiole 35-50-(85) mm long, sparsely hairy; blade reniform, palmate; leaflets 3-5, narrow-to broad-obovate, sessile, (5)-8-20-(35) × 3-16 mm, sparsely to moderately clothed in long, appressed hairs above and below (especially along veins on underside), serrate with (2)-3-5-(6) pairs of teeth in upper part; upper cauline lvs sometimes smaller with shorter petiole; stipules linear-lanceolate to narrow-elliptic, acute, usually entire, sometimes with 1-(2) teeth. Fls usually solitary in axils of lvs, rarely several fls together, 4-5-merous. Epicalyx segments lanceolate to narrow-elliptic, 3-6 mm long, acute, entire. Sepals ± ovate-triangular, ± = epicalyx, connate at base; segments pilose. Petals broadly obovate, 4-6-(8) mm long, pale yellow, shallowly emarginate. Style filiform. Achenes finely rugose, c. 1.5 mm long; wings 0 or very obscure.
Home
