Burke: Anemone parviflora vs. Anemone patens

	Anemone parviflora	Anemone patens
	northern anemone, small-flowered anemone, northern windflower	pasqueflower, prairie-crocus
Habit	Sub-glabrous to densely hairy perennial from slender, horizontal rhizomes, the flowering stems 5-20 cm. tall.	Grayish, hairy perennial from a branched, woody base, the 1-many stems 5-25 cm. tall.
Leaves	Basal leaves several, the blades cordate-reniform, 1.5-3 cm. broad, ternate, the leaflets wedge-shaped, coarsely toothed, the lateral pair deeply lobed as well; the flowering stem naked except for a whorl of 3 leaves above the midpoint, these simple but deeply tri-lobed.	Basal leaves numerous, long-petiolate, the blades 4-10 cm. broad, primarily ternate but divided into numerous linear divisions 1-2 mm. broad; the flowering stem naked except for a whorl of 3 leaves near the midpoint, divided much like the basal leaves, but smaller and sessile.
Flowers	Flowers single: sepals usually 5, white or bluish tinged, hairy on the outer surface, 10-15 mm. long; petals none; stamens and pistils numerous.	Flowers single; sepals 5-7, blue to purple, oblong-elliptic to oblong-lanceolate, 2.5-3.5 cm long; petals none; stamens and pistils numerous.
Fruits	Achenes densely woolly, obovate, 2-2.5 mm. long; style straight, 1.5-2 mm. long, glabrous.	Achenes numerous, silky, linear-ellipsoid, 3 mm. long; style slender, flexuous, short-plumose, 2-3.5 mm. long.

	Anemone parviflora	Anemone patens
Flowering time	May-August	May-August
Habitat	Mountain meadows and subalpine stream banks.	Prairies to mountain slopes, mostly on well-drained soil.
Distribution	Occurring on both sides of the Cascades crest in the North Cascades in Washington; Alaska to northern Washington, east to Montana and Wyoming, in scattered locations in Utah and Colorado, and also east across northern Canada to the Atlantic Coast. [WildflowerSearch map] [BONAP county map]	Occurring east of the Cascades crest in the Wenatchee Mountains in Washington, where disjunct from the main species range; Alaska, south in the Rocky Mountains to New Mexico, east to the northern Great Plains and the Great Lakes region. [WildflowerSearch map]
Origin	Native	Native
Conservation status	Not of concern	Threatened in Washington (WANHP)
Sibling taxa	A. deltoidea, A. drummondii, A. lyallii, A. multifida, A. occidentalis, A. oregana, A. patens, A. piperi	A. deltoidea, A. drummondii, A. lyallii, A. multifida, A. occidentalis, A. oregana, A. parviflora, A. piperi
Subordinate taxa		A. patens var. multifida
Web links	Local floras: BC, OR, WA Local Web sites: 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, WA Local Web sites: 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

Anemone patens

northern anemone, small-flowered anemone, northern windflower

pasqueflower, prairie-crocus

Habit

Sub-glabrous to densely hairy perennial from slender, horizontal rhizomes, the flowering stems 5-20 cm. tall.

Grayish, hairy perennial from a branched, woody base, the 1-many stems 5-25 cm. tall.

Leaves

Basal leaves several, the blades cordate-reniform, 1.5-3 cm. broad, ternate, the leaflets wedge-shaped, coarsely toothed, the lateral pair deeply lobed as well; the flowering stem naked except for a whorl of 3 leaves above the midpoint, these simple but deeply tri-lobed.

Basal leaves numerous, long-petiolate, the blades 4-10 cm. broad, primarily ternate but divided into numerous linear divisions 1-2 mm. broad; the flowering stem naked except for a whorl of 3 leaves near the midpoint, divided much like the basal leaves, but smaller and sessile.

Flowers

Flowers single: sepals usually 5, white or bluish tinged, hairy on the outer surface, 10-15 mm. long;

petals none;

stamens and pistils numerous.

Flowers single;

sepals 5-7, blue to purple, oblong-elliptic to oblong-lanceolate, 2.5-3.5 cm long;

petals none;

stamens and pistils numerous.

Fruits

Achenes densely woolly, obovate, 2-2.5 mm. long;

style straight, 1.5-2 mm. long, glabrous.

Achenes numerous, silky, linear-ellipsoid, 3 mm. long;

style slender, flexuous, short-plumose, 2-3.5 mm. long.

Anemone parviflora

Anemone patens

Flowering time

May-August

Habitat

Mountain meadows and subalpine stream banks.

Prairies to mountain slopes, mostly on well-drained soil.

Distribution

Occurring on both sides of the Cascades crest in the North Cascades in Washington; Alaska to northern Washington, east to Montana and Wyoming, in scattered locations in Utah and Colorado, and also east across northern Canada to the Atlantic Coast.

[WildflowerSearch map]

[BONAP county map]

Occurring east of the Cascades crest in the Wenatchee Mountains in Washington, where disjunct from the main species range; Alaska, south in the Rocky Mountains to New Mexico, east to the northern Great Plains and the Great Lakes region.

[WildflowerSearch map]

Origin

Native

Conservation status

Not of concern

Threatened in Washington (WANHP)

Sibling taxa