Overview

Comprehensive Description

General Description

Shrubs erect, usually many branched. Branches covered with reddish brown or gray, peeling bark, villous when young. Stipules broad, thinly membranous, abaxially villous or glabrescent; petiole sericeous or pilose; leaf blade pinnate with 2 pairs of leaflets, rarely 3-foliolate; leaflets oblong, obovate, or ovate-lanceolate, 7-20 mm long, 4-10 mm wide, abaxially sparsely pilose or subglabrous, adaxially sparsely pilose, sericeous, or subglabrous, inconspicuously elevated reticulate veined, margin flat, base cuneate, decurrent and adnate to rachis in apical pair of leaflets, margin entire, flat. Inflorescence terminal, laxly racemose or corymbiform, 1- to several flowered. Flowers 2.3-3 cm in diameter. Sepals ovate, apex acute to shortly acuminate; epicalyx segments lanceolate to obovate-lanceolate, nearly equaling sepals, sparsely sericeous-villous, apex acute to acuminate. Petals yellow, broadly obovate, nearly equaling sepals, apex rounded. Style sub-basal, clavate, thin proximally, constricted at base of dilated stigma. Achenes brown, subovate, ca. 1.5 mm, abaxially villous.
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Distribution

Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Shaanxi, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan [Asia, Europe, North America].
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Potentilla fruticosa is occurring in Gansu, Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol, Shaanxi, Shanxi, Sichuan, Xinjiang, Xizang, Yunnan of China, Asia, Europe, North America.
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© Wen, Jun

Source: Plants of Tibet

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Physical Description

Morphology

Description

Shrubs erect or sometimes prostrate, usually many branched. Branches covered with reddish brown or gray, peeling bark, villous when young. Stipules broad, thinly membranous, abaxially villous or glabrescent; petiole sericeous or pilose; leaf blade pinnate with 2 pairs of leaflets, rarely 3-foliolate; leaflets oblong, obovate-oblong, or ovate-lanceolate, 0.3–2 × 0.3–1 cm, abaxially ± densely hairy, sometimes sparsely so or glabrescent, adaxially sparsely or rather densely appressed hairy, base cuneate, decurrent and adnate to rachis in apical pair of leaflets, margin entire, flat or often ± revolute, apex usually acute. Inflorescence terminal, laxly racemose or corymbiform, small, 1- to several flowered. Flowers 1–3 cm in diam. Sepals ovate, apex acute to shortly acuminate; epicalyx segments lanceolate to obovate-lanceolate, nearly equaling sepals, sparsely sericeous-villous, apex acute to acuminate. Petals yellow, broadly obovate, nearly equaling sepals, apex rounded. Style sub-basal, clavate, thin proximally, constricted at base of dilated stigma. Achenes brown, subovate, ca. 1.5 mm, abaxially villous. Fl. and fr. Jun–Sep.
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© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

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Diagnostic Description

Potentilla fruticosa var. fruticosa is close relative of Potentilla fruticosa var. arbuscula, but differs from the latter in its leaflets abaxially sparsely pilose or subglabrous (vs. densely appressed white villous), adaxially inconspicuously elevated reticulate veined (vs. prominently elevated reticulate veined), margin flat (vs. strongly revolute).
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Source: Plants of Tibet

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Ecology

Habitat

Rocks in forests, forest margins, thickets, alpine meadows, dry and grassy mountain slopes, talus slopes; 400--5000 m.
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Growing in dry forest margins, thickets, grassy mountain slopes, talus slopes; 1000-4000 m.
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© Wen, Jun

Source: Plants of Tibet

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Associations

Foodplant / sap sucker
Macrosiphum rosae sucks sap of live Potentilla fruticosa

In Great Britain and/or Ireland:
Foodplant / parasite
Podosphaera aphanis parasitises live Potentilla fruticosa

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Life History and Behavior

Cyclicity

Flowering and fruiting from June to September.
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Source: Plants of Tibet

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Evolution and Systematics

Evolution

Phylogeny of Potentilla and associated genera were inferred from nuclear ribosomal internal transcribed spacer (ITS) DNA sequences (Eriksson et al., 1998). Most parsimonious tree strongly implies that Potentilla is not monophyletic. Several morphological features appear to have evolved several times independently, including the swollen receptacle and ternate leaves.
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Source: Plants of Tibet

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Molecular Biology and Genetics

Genetics

The chromosomal number of Potentilla fruticosa is 2n = 14 (Guinochet and Lefranc, 1981).
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Molecular Biology

Statistics of barcoding coverage: Potentilla fruticosa

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 2
Specimens with Barcodes: 4
Species With Barcodes: 1
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Source: Barcode of Life Data Systems (BOLD)

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Conservation

Management

These species are introduced in Switzerland.
  • Aeschimann, D. & C. Heitz. 2005. Synonymie-Index der Schweizer Flora und der angrenzenden Gebiete (SISF). 2te Auflage. Documenta Floristicae Helvetiae N° 2. Genève.   http://www.crsf.ch/ External link.
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© Info Flora (CRSF/ZDSF) & Autoren 2005

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