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Brewer's cinquefoil

Habit Perennial from a sparingly branched crown and often a short rhizome, grayish-sericeous but not glandular, the stems 1-2.5 dm. tall.
Leaves

Basal leaves pinnate, the leaflets 9-11, crowded, broadly obovate with a wedge-shaped base, 1-2 cm. long, cleft more that halfway to the midvein into linear divisions;

stipules ovate, 0.5-1.5 cm. long;

cauline leaves 2-3, greatly reduced.

Flowers

Inflorescence an open, several-flowered cyme;

calyx sericeous, cup-shaped, up to 1.5 cm. broad in fruit, the 5 lobes lanceolate, interspersed with 5 linear, smaller bracteoles;

petals 5, yellow, obcordate, exceeding the sepals;

stamens 20;

pistils numerous;

style slender, sub-apical.

Fruits

Achene smooth, greenish, 1.3 mm. long.

Potentilla breweri

Potentilla millefolia

Flowering time June-August
Habitat Moist meadows and stream banks to open slopes at middle to high elevations.
Distribution
Occurring east of the Cascades crest from central Washington south; central Washington to California, east to Nevada.
[WildflowerSearch map]
[BONAP county map]
[WildflowerSearch map]
[BONAP county map]
Origin Native
Conservation status Threatened in Washington (WANHP)
Sibling taxa
P. anserina, P. argentea, P. biennis, P. drummondii, P. flabellifolia, P. glaucophylla, P. gracilis, P. hyparctica, P. jepsonii, P. newberryi, P. nivea, P. norvegica, P. pensylvanica, P. recta, P. rivalis, P. supina, P. villosa
P. anserina, P. argentea, P. biennis, P. breweri, P. drummondii, P. flabellifolia, P. glaucophylla, P. gracilis, P. hyparctica, P. jepsonii, P. newberryi, P. nivea, P. norvegica, P. pensylvanica, P. recta, P. rivalis, P. supina, P. villosa
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