Potentilla elegans

Chamisso & Schlechtendal

Linnaea 2: 22. 1827.

Common names: Elegant cinquefoil
Illustrated
Treatment appears in FNA Volume 9. Treatment on page 194. Mentioned on page 188, 189, 195.

Plants densely tufted to cushion-forming; caudex branches usually short, stout, sometimes embedded in old leaves. Stems erect, 0.1–0.5 dm, lengths 1–2 times leaves. Basal leaves not in ranks, ternate, 0.5–2.5(–4) cm; stipules: apex acute to obtuse; petiole 0.2–1.8(–2.5) cm, long hairs ± sparse, ± spreading, 0.2–1 mm, weak, glands sparse to abundant; leaflets 3, central obtriangular to flabellate, 0.5–0.7(–1) × 0.5–0.7 cm, petiolule 0–0.5 mm, margins flat, distal 3/4+ deeply 3–5-lobed (sinuses extending 2/3–3/4 to midvein), lobes unevenly incised 1/4–1/2 to midvein, teeth 1–3(–5) per lobe, surfaces similar, green, brownish, or reddish, hairs absent or sparse, 0.2–0.5 mm, glands sparse to common (also densely punctate-glandular). Inflorescences 1-flowered. Pedicels straight or ± curved, 0–0.5(–2) cm in flower, to 5 cm in fruit. Flowers: epicalyx bractlets linear, elliptic, or obovate, 2–2.2 × 0.8–1.1 mm, margins flat; hypanthium 2.5–3.5 mm diam.; sepals 2.2–2.5 mm, apex broadly acute to obtuse; petals pale yellow, 3–3.5 × 3–3.5 mm; filaments 1–1.5 mm, anthers 0.3–0.4 mm; carpels 20–25, styles ± columnar, not papillate-swollen proximally, 0.7–0.9 mm. Achenes 1.2 mm. 2n = 14, 28 (Russian Far East).


Phenology: Flowering spring–summer.
Habitat: Rock crevices, blocky scree, mountain summits, mostly on acidic bedrock
Elevation: 100–1600 m

Distribution

V9 295-distribution-map.jpg

B.C., N.W.T., Yukon, Alaska, e Asia (Russian Far East).

Discussion

For present purposes, Potentilla elegans is treated in sect. Aureae, as was done by B. C. Johnston (1985), largely on the basis of pragmatism. J. Soják (1994) places the species instead in sect. Dumosae Soják, which otherwise comprises several Himalayan species.

Selected References

None.

Lower Taxa

None.
... more about "Potentilla elegans"
Reidar Elven +, Barbara Ertter +, David F. Murray +  and James L. Reveal +
Chamisso & Schlechtendal +
Aureae +
Elegant cinquefoil +
B.C. +, N.W.T. +, Yukon +, Alaska +  and e Asia (Russian Far East). +
100–1600 m +
Rock crevices, blocky scree, mountain summits, mostly on acidic bedrock +
Flowering spring–summer. +
Illustrated +
Potentilla ser. +  and Potentilla sect. Frigidae +
Potentilla elegans +
Potentilla sect. Aureae +
species +