Potentilla hyparctica subsp. hyparctica

Treatment appears in FNA Volume 9. Treatment on page 193.

Plants: hairs common to dense. Stems 0.2–1.2 dm. Central leaflets obovate, petiolule 0–2 mm, base cuneate, teeth narrowly triangular to oblong, tooth apex subacute to obtuse. Inflorescences 1 (–3) -flowered. Flowers: epicalyx bractlets narrowly to ± oblong or ovate, 1.5–2 mm wide; sepals: apex subacute to obtuse. 2n = 42.


Phenology: Flowering late spring–summer.
Habitat: Polar deserts, moist tundra, meadows, boulder and gravel fields, rocky outcrops, talus, mainly acidic bedrock
Elevation: 0–1500 m

Distribution

V9 292-distribution-map.jpg

Greenland, N.W.T., Nunavut, Que., Yukon, Alaska, Europe, Asia

Discussion

Selected References

None.

Lower Taxa

None.

"thin" is not a number."wide" is not a number."dm" is not declared as a valid unit of measurement for this property."-3(-4)timesbasalleaves" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property."dm" is not declared as a valid unit of measurement for this property.

grayish +  and pale green +
pale +  and dark green rarely grayish brownish or reddish +
1.1mm +  and 1.3mm +
green +  and dark green rarely brownish or reddish +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
subacute;obtuse +
Reidar Elven +, Barbara Ertter +, David F. Murray +  and James L. Reveal +
8 cm80 mm <br />0.08 m <br /> (10 cm100 mm <br />0.1 m <br />) +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
cuneate +
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 />) +
coriaceous +
reduced +
free +  and distinct +
hairy +  and glabrous +
slender +, short +  and elongate +
2.5 cm25 mm <br />0.025 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Greenland +, N.W.T. +, Nunavut +, Que. +, Yukon +, Alaska +, Europe +  and Asia +
not +  and aggregated +
0–1500 m +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
ovate +  and oblong +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 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 />) +
sparse;common +
Polar deserts, moist tundra, meadows, boulder and gravel fields, rocky outcrops, talus, mainly acidic bedrock +
stoloniferous +  and short-rhizomatous +
straight +
weak +  and more or less stiff +
spreading +  and subappressed +
crisped +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.17 cm1.7 mm <br />0.0017 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 />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.5mm;2.5mm +
turbinate +, patelliform +  and cupulate +
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 +
linear +  and oblanceolate +
palmate +  and pinnate +
1/2 (?) +  and 2/3-3/4 (?) +
incised +, not lobed +, revolute +  and flat +
inferior +  and superior +
clustered +, biseriate +  and superposed +
3 cm30 mm <br />0.03 m <br /> (9 cm90 mm <br />0.09 m <br />) +
0 cm0 mm <br />0 m <br /> (9 cm90 mm <br />0.09 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
bright-yellow +  and pale +
free +  and distinct +
usually longer +
obcordate +
0.3 cm3 mm <br />0.003 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
6.5 cm65 mm <br />0.065 m <br /> (8.5 cm85 mm <br />0.085 m <br />) +
1 cm10 mm <br />0.01 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Flowering late 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 +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Illustrated +
free +  and distinct +
not rooting +
reddish +  and green +
ascending +  and erect +
1 +  and many +
not flagelliform +
palmate +  and pinnate +
linear;ovate +
deciduous +
distinct +
subapical +
papillate-swollen +  and columnar +
rough-thickened +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
Potentilla robbinsiana subsp. hyparctica +
not fleshy-thickened +
Potentilla hyparctica subsp. hyparctica +
Potentilla hyparctica +
subspecies +
3 (?) +  and 5 (?) +
narrowly triangular +  and oblong +
inconspicuous +
enlarged +
matted +  and cushion-forming +
biennial +, annual +  and perennial +