Potentilla glaucophylla |
Potentilla demotica |
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blue-leaf cinquefoil, different-leaf cinquefoil, diverse-leaf cinquefoil, mountain meadow cinquefoil, vari-leaf cinquefoil |
Hualapai cinquefoil |
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| Glands | absent or inconspicuous, uncolored. |
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| Stems | mostly ± ascending, 0.5–3(–4.5) dm. |
0.2–1.5(–2) dm. |
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| Basal leaves | often 2-ranked, palmate, sometimes subpalmate, 2–20 cm; petiole (0.5–)1–8(–14) cm, long hairs often absent, sometimes sparse to abundant, usually appressed, 1–2 mm, weak to ± stiff, short, crisped, and cottony hairs absent, glands absent or sparse; leaflets 5–6(–7), sometimes with 1–2(–4) additional, smaller, entire leaflets, on tip or to distal 1/10(–1/4) of leaf axis, separate, largest ones oblanceolate or cuneate to obovate, 1–4(–6) × 0.5–1.5(–2) cm, margins flat, distal 1/3–1/2(–2/3) ± evenly incised 1/2 or nearly to midvein, undivided medial blade 1.5–7(–10) mm wide, teeth 1–3(–5) per side, broadly lanceolate or linear to narrowly oblong, 1–5(–8) mm, surfaces similar adaxial ± less hairy, ± blue-green, usually glaucous, long hairs sparse to abundant (often restricted to veins, distal teeth, and margins), short, crisped, and cottony hairs absent, glands absent or sparse. |
usually palmate, sometimes ternate, 2–8 cm; petiole 1–7 cm, long hairs common, spreading to ascending, 1.5–2.5 mm, weak to ± stiff, glands abundant; leaflets (3–)5, central oblanceolate, 0.5–1.5(–2) × 0.4–0.8 cm, scarcely petiolulate, distal ± 3/4 of margins ± evenly incised 1/2–3/4 to midvein, teeth 2–3(–4) per side, surfaces green, long hairs sparse to common, 0.5–1.5 mm, glands abundant. |
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| Cauline leaves | (0–)1–2(–3). |
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| Inflorescences | 2–10(–20)-flowered. |
1–7-flowered. |
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| Pedicels | (0.5–)1–3(–6.5) cm. |
0.5–1(–2) cm. |
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| Flowers | epicalyx bractlets lanceolate to elliptic, 2–5 × 0.8–1.2(–1.6) mm, hairs sparse to common, rarely abundant, ± ascending, glands absent or inconspicuous; hypanthium 3.5–5 mm diam.; sepals (2–)2.5–4.5(–5) mm, apex acute to short acuminate; petals (4–)5–10(–12) × 4–9(–10) mm; filaments 1.5–2.5(–3) mm, anthers 0.4–0.7(–0.9) mm; carpels 25–40, styles filiform above papillate-swollen base, 1.5–2.5(–3) mm. |
epicalyx bractlets ovate-elliptic, 1–2.5 × 1–1.5 mm; hypanthium 2–3 mm diam.; sepals 2.5–4 mm, apex obtuse; petals ± paler abaxially, bright yellow adaxially, ± obcordate, 3–7 × 2.5–4 mm; filaments 1.3–2 mm, anthers 0.5 mm; carpels 5–12, styles 2–2.5 mm. |
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| Achenes | 1.2–1.6 mm. |
1.5–1.8 mm, smooth to lightly rugose. |
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| Short | hairs not well differentiated from long hairs, absent or sparse throughout. |
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Potentilla glaucophylla |
Potentilla demotica |
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| Phenology | Flowering May–Jun. | |||||
| Habitat | Crevices on granitic outcrops, in Yellow pine forests | |||||
| Elevation | 2300–2400 m [7500–7900 ft] | |||||
| Distribution |
AK; CA; CO; ID; MT; NV; OR; UT; WA; WY; AB; BC; NL; NT; SK; YT
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AZ |
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| Discussion | Varieties 2 (2 in the flora). Potentilla glaucophylla replaces P. diversifolia; an examination of the lectotype of the latter confirms J. Soják’s (1996) conclusion that P. diversifolia applies to a hybrid involving P. glaucophylla and P. hippiana. Historically, this species was often termed P. dissecta Pursh, a misapplied name that has been rejected (B. Ertter et al. 2008). In addition to the nomenclatural change, the circumscription of Potentilla glaucophylla is here restricted to plants with usually glaucous, blue-green, distally toothed leaflets that are usually glabrate (at least in var. glaucophylla). Plants from the Colorado Plateau and southern Rocky Mountains formerly included in this species and having dark green leaves, more leaflet teeth, and larger anthers are transferred either to P. townsendii or to a currently undescribed entity. The two-ranked leaves of Potentilla glaucophylla suggest a possible connection to P. crantzii in sect. Aureae. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Of conservation concern. Potentilla demotica is known from a single granitic knoll in the Hualapai Mountains, Mohave County. The species was reported as a western range extension of P. subviscosa by M. Butterwick et al. (1991); it differs in rock-dwelling habit, petal color, and epicalyx, among other characters. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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| Key |
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| Synonyms | P. diversifolia var. glaucophylla | |||||
| Name authority | Lehmann: Index Seminum (Hamburg) 1836: 7. (1836) | Ertter: J. Bot. Res. Inst. Texas 1: 53, fig. 2. (2007) | ||||
| Source | FNA vol. 9, p. 152. | FNA vol. 9, p. 185. | ||||
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