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.

"dm" is not declared as a valid unit of measurement for this property.

... more about "Potentilla elegans"
pale +  and dark green rarely grayish brownish or reddish +
green +  and dark green rarely brownish or reddish +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Reidar Elven +, Barbara Ertter +, David F. Murray +  and James L. Reveal +
Chamisso & Schlechtendal +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Aureae +
25 cm250 mm <br />0.25 m <br /> (30 cm300 mm <br />0.3 m <br />) +
less cordate or reniform +  and narrowly elliptic +
0.5 cm5 mm <br />0.005 m <br /> (25 cm250 mm <br />0.25 m <br />) +
reduced +
free +  and distinct +
hairy +  and glabrous +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
obtriangular +  and flabellate +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Elegant cinquefoil +
B.C. +, N.W.T. +, Yukon +, Alaska +  and e Asia (Russian Far East) +
not +  and aggregated +
100–1600 m +
0.2 cm2 mm <br />0.002 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
obovate +  and elliptic +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
5-merous +, solitary +  and open +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
unisexual +  and bisexual +
not +  and aggregated +
deciduous +
on style scar +, hairy +  and glabrous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.26 cm2.6 mm <br />0.0026 m <br />) +
Rock crevices, blocky scree, mountain summits, mostly on acidic bedrock +
stoloniferous +  and short-rhizomatous +
straight +
spreading to ascending +
crisped +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
not differentiated +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
crassinucellate +
bipinnate +, odd-pinnate +, subpalmate +, palmate +  and ternate +
opposite +  and alternate +
marcescent +
well-developed +
persistent +
cauline +  and basal +
reduced +
not +  and overlapping +
obtriangular +  and flabellate +
incised +
palmate +  and pinnate +
1/2 +  and 3/4 +
3-5-lobed +
inferior +  and superior +
clustered +, biseriate +  and superposed +
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
curved +  and straight +
0 cm0 mm <br />0 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
free +  and distinct +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
usually longer +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Flowering spring–summer. +
adnate +, free +, connate +  and distinct +
palmate +  and ternate +
12 cm120 mm <br />0.12 m <br /> (20 cm200 mm <br />0.2 m <br />) +
1 cm10 mm <br />0.01 m <br /> (12 cm120 mm <br />0.12 m <br />) +
usually not much longer +
not arillate +
persistent +
free +  and distinct +
erect +  and spreading +
lanceolate +  and broadly ovate or deltate +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Illustrated +
free +  and distinct +
not rooting +
reddish +  and green +
1-2 times leaves +
1 +  and many +
not flagelliform +
palmate +  and pinnate +
deciduous +
distinct +
subapical +
papillate-swollen +  and columnar +
rough-thickened +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
reddish +, brownish +  and green +
Potentilla ser. +  and Potentilla sect. Frigidae +
not fleshy-thickened +
Potentilla elegans +
Potentilla sect. Aureae +
species +
1 +  and 3 +
inconspicuous +
enlarged +
matted +  and cushion-forming +
biennial +, annual +  and perennial +
plant +  and cushion-forming +