Potentilla subviscosa |
Potentilla newberryi |
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Mogollon cinquefoil, Navajo cinquefoil |
Newberry's cinquefoil |
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Stems | 0.2–1.5(–2) dm. |
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Basal leaves | palmate, rarely ternate, (1–)2–7(–18) cm; petiole (0.5–)1–5(–11) cm, long hairs sparse to abundant, ± spreading (to ascending), 1–3(–4) mm, ± weak, glands ± abundant; leaflets (3–)5(–7), central flabellate to obovate-cuneate or oblanceolate, (0.5–)1–3(–8) × 0.5–2 cm, not or ± petiolulate, distal 2/3–3/4 of margins evenly to unevenly incised 1/5–3/4 to midvein, sometimes deeply lobed as well, teeth 2–9 per side (some secondarily toothed as well), surfaces green, long hairs sparse to common, 1–2 mm (late-season leaves and adaxial surfaces sometimes nearly glabrate), glands sparse to abundant. |
petiole 1–3.5 cm, long hairs ± abundant, 0.5–1.5 mm, short hairs absent or sparse, rarely common; leaflets 0.2–1 cm, lobes oblanceolate to narrowly elliptic, (0.5–)1–2 mm wide, longs hairs ± abundant, short hairs absent or sparse, glands sparse to abundant. |
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Inflorescences | (1–)3–15-flowered. |
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Pedicels | 0.5–1.5(–2) cm. |
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Flowers | epicalyx bractlets lanceolate-elliptic, 1.5–3(–5) × 0.5–1.5 mm; hypanthium 2.5–4 mm diam.; sepals (2.5–)3–5(–6) mm, apex ± acute; petals nearly white abaxially, pale yellow adaxially, narrowly obcordate, 3–6(–8) × 2.5–5 mm; filaments 1.5–2.5 mm, anthers 0.5–1 mm; carpels 4–12, styles 2–3 mm. |
epicalyx bractlets broadly lanceolate to elliptic, 1.5–4(–5) × (0.4–)0.8–1.3 mm; sepals 2–4(–5) mm, apex ± acute; petals (3–)4–6 × (2–)3–5 mm; filaments 1–2(–2.5) mm, anthers 0.4–0.6 mm; carpels 20–50. |
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Achenes | 1.5–2 mm, ± rugose. |
0.9–1.2 mm. |
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Short | hairs well differentiated from long hairs, ± abundant to dense throughout. |
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Potentilla subviscosa |
Potentilla newberryi |
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Phenology | Flowering summer. | |||||
Habitat | Moist, sandy to clayey, more or less alkaline soil, especially where seasonally inundated near streams, ponds, and lakes | |||||
Elevation | 1300–1800 m (4300–5900 ft) | |||||
Distribution |
AZ; CO; NM
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CA; NV; OR; WA
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Discussion | Varieties 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Potentilla newberryi grows in valley bottoms in south-central Oregon, northeastern California, and northwestern Nevada. The only specimen supposedly collected in south-central Washington (W. N. Suksdorf 2718, WTU) was gathered in 1898. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 9, p. 184. | FNA vol. 9, p. 137. | ||||
Parent taxa | Rosaceae > subfam. Rosoideae > tribe Potentilleae > Potentilla > sect. Subviscosae | Rosaceae > subfam. Rosoideae > tribe Potentilleae > Potentilla > sect. Arenicolae | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Ivesia gracilis | |||||
Name authority | Greene: Bull. Torrey Bot. Club 8: 97. (1881) | A. Gray: Proc. Amer. Acad. Arts 6: 532. (1865) — not P. gracilis Douglas ex Hooker 1830 | ||||
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