Potentilla villosula Jurtzev

Species

Angiosperms > Rosales > Rosaceae > Potentilla

Characteristics

Plants densely tufted. Caudex branches stout, sometimes ± columnar, not sheathed with marcescent whole leaves. Stems ascending to erect, 0.2–1.5(–2) dm, lengths 1.5–3(–4) times basal leaves. Basal leaves 1–5.5(–7) cm; petiole 0.5–3.5(–5) cm, long hairs common to dense, ascending to spreading, loosely appressed, sometimes retrorse, 1–2(–3) mm, soft, smooth, crisped/short-cottony hairs usually sparse, sometimes common, glands absent or sparse to common or obscured; leaflets overlapping, central broadly obovate to obtriangular, 0.8–2.5 × 0.6–2 cm, sessile to subsessile, base broadly cuneate, margins revolute, distal 1/2–2/3(–3/4) incised ± 1/2 to midvein, teeth 2–3(–4) per side, ± approximate to ± distant, surfaces ± dissimilar, abaxial grayish to white or yellowish white, long hairs 1.5–2.5 mm, cottony-crisped hairs ± dense, adaxial grayish green, long hairs abundant to dense, crisped hairs absent, sparse, or obscured. Cauline leaves (0–)1–2(–3). Inflorescences (1–)2–3(–4)-flowered. Pedicels 0.5–3(–5) cm in flower, to 4(–6) cm in fruit. Flowers: epicalyx bractlets broadly lanceolate to narrowly ovate, 3–7(–8) × 1.5–3(–3.5) mm, 2/3 to as wide as sepals, margins ± revolute, red glands absent; hypanthium (3–)4–6 mm diam.; sepals 4–7(–8) mm, apex acute or rarely acuminate; petals 5–10 × 6–12 mm, significantly longer than sepals; filaments 1.1–1.4 mm, anthers 0.5–0.8 mm; carpels 40–70, apical hairs absent or sparse (straight), styles narrowly columnar to conic-tapered, papillate-swollen in proximal 1/5 or less, 1–1.2 mm. Achenes 0.9–2 mm. 2n = 28 (Russian Far East).
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Growth form herb
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Foliage retention deciduous
Sexuality hermaphrodite
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Hardiness (USDA) 4-9

Usage

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Cultivation

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Germination duration (days) 14 - 30
Germination temperacture (C°) 18 - 21
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Distribution

Potentilla villosula world distribution map, present in Canada

Identifiers

LSID urn:lsid:ipni.org:names:987455-1
WFO ID wfo-0001131701
COL ID 4M698
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Potentilla villosula