Potentilla anachoretica

Soják

Preslia 46: 70, fig. [p. 71]. 1974.

Treatment appears in FNA Volume 9. Treatment on page 218. Mentioned on page 213.

Stems erect, 1–3 dm. Basal leaves pinnate, (4–) 5–10 (–14) cm; petiole 3–7 (–10) cm, long hairs abundant, subappresssed to appressed, 0.5–2 mm, ± weak, short hairs absent, crisped or cottony hairs absent or sparse, glands absent or sparse; leaflets 2–3 per side, on distal 1/3–1/2 of leaf axis, separate, terminal ones elliptic to obovate, (1.8–) 2–2.5 (–3) × 0.8–1.3 cm, margins revolute, incised nearly to midvein, undivided medial blade 1–2 mm wide, teeth (4–) 5–7 per side, linear, surfaces ± dissimilar, abaxial grayish to white, long hairs ± abundant especially on veins, 1–1.5 mm, weak, short hairs absent, crisped hairs abundant to dense, glands absent or obscured, adaxial greenish gray, long hairs common, appressed, 0.5–1 mm, short hairs absent, crisped hairs absent or sparse, glands absent or obscured. Cauline leaves 1–2. Inflorescences 2–5-flowered, very open. Pedicels 2–4 cm. Flowers: epicalyx bractlets narrowly elliptic to linear, 3–4 × 0.5–0.8 (–1) mm, lengths 2/3–3/4 times sepals, margins flat; hypanthium 2.5–3 mm diam.; sepals 3.5–5 mm, apex subacute, abaxial surfaces: venation indistinct, glands sparse to common, often obscured; petals yellow, 7.5–10 (–10.5) × 7.5–9 (–10) mm, much exceeding sepals; filaments 1–2 mm, anthers 0.5–0.7 mm; carpels 50–60, styles papillate-swollen at very base, if at all, 0.8–0.9 mm. Achenes 1.4–1.6 mm, smooth to faintly rugose. 2n = 28 (14, 42, 56) (Russian Far East).


Phenology: Flowering summer.
Habitat: Dry ridges, rocky outcrops, south-facing slopes, mainly on basic substrates
Elevation: 500 m

Distribution

V9 328-distribution-map.jpg

Alaska, e Asia (Russian Far East)

Discussion

Potentilla anachoretica is isolated in sect. Pensylvanicae. B. A. Jurtzev (1993, pers. comm.) claimed indirect support for the presence of P. anachoretica in Alaska and Yukon by the presence of three hybrid species presumably involving P. anachoretica in their parentage: P. borealis Soják, P. murrayi Jurtzev, and P. petrovskyi Soják (sect. Rubricaules; discussed by B. Ertter et al. 2013). Potentilla anachoretica is confirmed from at least two sites in Brooks Range, northern Alaska.

Selected References

None.

Lower Taxa

None.

No values specified."dm" is not declared as a valid unit of measurement for this property.

... more about "Potentilla anachoretica"
56] +, 42 +, [14 +  and 28 +
grayish +  and white +
smooth +  and faintly rugose +
1.4mm +  and 1.6mm +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Barbara Ertter +  and Reidar Elven +
Soják +
compound +  and simple +
opposite +  and alternate +
10 cm100 mm <br />0.1 m <br /> (14 cm140 mm <br />0.14 m <br />) +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
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 +
Alaska +  and e Asia (Russian Far East) +
not +  and aggregated +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
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 />) +
crisped +
Dry ridges, rocky outcrops, south-facing slopes, mainly on basic substrates +
stoloniferous +  and short-rhizomatous +
straight +
spreading +  and appressed +
sparse +, common +  and abundant +
crisped +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
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 /> (0.3 cm3 mm <br />0.003 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 />) +
open +  and 2-5-flowered +
crassinucellate +
bipinnate +, odd-pinnate +, subpalmate +, palmate +  and ternate +
opposite +  and alternate +
marcescent +
well-developed +
persistent +
cauline +  and basal +
reduced +
2.5 cm25 mm <br />0.025 m <br /> (3 cm30 mm <br />0.03 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
elliptic +  and obovate +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 1.3 cm13 mm <br />0.013 m <br /> (?) +
linear +  and oblanceolate +
palmate +  and pinnate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
inferior +  and superior +
clustered +, biseriate +  and superposed +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
2 cm20 mm <br />0.02 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.05 cm10.5 mm <br />0.0105 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.05 cm10.5 mm <br />0.0105 m <br />) +
0.9 cm9 mm <br />0.009 m <br /> (1 cm10 mm <br />0.01 m <br />) +
free +  and distinct +
0.75 cm7.5 mm <br />0.0075 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.75 cm7.5 mm <br />0.0075 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
7 cm70 mm <br />0.07 m <br /> (10 cm100 mm <br />0.1 m <br />) +
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Flowering summer. +
adnate +, free +, connate +  and distinct +
pinnate +  and subpinnate or subpalmate +
25 cm250 mm <br />0.25 m <br /> (30 cm300 mm <br />0.3 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (25 cm250 mm <br />0.25 m <br />) +
often significantly longer +
not arillate +
persistent +
free +  and distinct +
erect +  and spreading +
lanceolate +  and broadly ovate or deltate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
free +  and distinct +
not rooting +
reddish +  and green +
(1-)1.5-3(-4) times basal leaves +
1 +  and many +
not flagelliform +
palmate +  and pinnate +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
deciduous +
distinct +
subapical +
papillate-swollen +
rough-thickened +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
Multifidae +, Potentilla sect. Multifidae +  and Potentilla ser. +
not fleshy-thickened +
Potentilla anachoretica +
Potentilla sect. Pensylvanicae +
species +
5 +  and 7 +
inconspicuous +
enlarged +
biennial +, annual +  and perennial +
herb +  and matted +