Burke: Potentilla newberryi vs. Potentilla gracilis

	Potentilla newberryi	Potentilla gracilis
	Newberry's cinquefoil	slender cinquefoil
Habit		Highly variable perennial from a branched crown, the several ascending or erect stems 4-8 dm. tall.
Leaves		Basal leaves numerous, with petioles to 3 dm. long, palmately divided; the leaflets 7-9, broadly oblanceolate to oblong-elliptic, varying from glabrous and green on both surfaces to hairy above and white-woolly below, toothed to deeply dissected; cauline leaves 1-2, reduced; stipules up to 2.5 cm. long, entire to lacerate.
Flowers		Inflorescence large, many-flowered, open, somewhat flat-topped; calyx 6-10 mm. broad, the 5 lobes 4-10 mm. long, ovate-lanceolate, the alternating bracteoles narrowly lanceolate, nearly as long; petals 5, yellow, obcordate, longer than the sepals; stamens 20; pistils numerous, the style slender, sub-terminal on the achene and the same length.
Fruits		Achene 1.5-2 mm. long, smooth, greenish.

	Potentilla newberryi	Potentilla gracilis
Flowering time	April-May	June-August
Habitat	Vernal pools, shores, and mudflats.	Varied habitats; moderately saline soil, grasslands, moist areas in shrub-steppe, forested mountains and subalpine meadows.
Distribution	Known historically (1898) from the Columbia River Gorge in Washington, now likely extirpated; central Oregon to California, east to northwestern Nevada. [WildflowerSearch map] [BONAP county map]	Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and eastern Canada. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Historical in Washington (WANHP)	Not of concern
Sibling taxa	P. anserina, P. argentea, P. biennis, P. breweri, P. drummondii, P. flabellifolia, P. glaucophylla, P. gracilis, P. hyparctica, P. jepsonii, 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. hyparctica, P. jepsonii, P. newberryi, P. nivea, P. norvegica, P. pensylvanica, P. recta, P. rivalis, P. supina, P. villosa
Subordinate taxa		P. gracilis var. brunnescens, P. gracilis var. flabelliformis, P. gracilis var. gracilis, P. gracilis var. pulcherrima
Web links	Local floras: CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local floras: BC, CA, OR, WA Local Web sites: CalFlora, CalPhotos, Flora NW, PNW Herbaria, Turner Photog. WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Potentilla gracilis

Newberry's cinquefoil

slender cinquefoil

Habit

Highly variable perennial from a branched crown, the several ascending or erect stems 4-8 dm. tall.

Leaves

Basal leaves numerous, with petioles to 3 dm. long, palmately divided; the leaflets 7-9, broadly oblanceolate to oblong-elliptic, varying from glabrous and green on both surfaces to hairy above and white-woolly below, toothed to deeply dissected;

cauline leaves 1-2, reduced;

stipules up to 2.5 cm. long, entire to lacerate.

Flowers

Inflorescence large, many-flowered, open, somewhat flat-topped;

calyx 6-10 mm. broad, the 5 lobes 4-10 mm. long, ovate-lanceolate, the alternating bracteoles narrowly lanceolate, nearly as long;

petals 5, yellow, obcordate, longer than the sepals;

stamens 20;

pistils numerous, the style slender, sub-terminal on the achene and the same length.

Fruits

Achene 1.5-2 mm. long, smooth, greenish.

Potentilla newberryi

Potentilla gracilis

Flowering time

April-May

June-August

Habitat

Vernal pools, shores, and mudflats.

Varied habitats; moderately saline soil, grasslands, moist areas in shrub-steppe, forested mountains and subalpine meadows.

Distribution

Known historically (1898) from the Columbia River Gorge in Washington, now likely extirpated; central Oregon to California, east to northwestern Nevada.

[WildflowerSearch map]

[BONAP county map]

Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, northern Great Plains, Great Lakes region, and eastern Canada.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Historical in Washington (WANHP)

Not of concern

Sibling taxa