Burke: Anemone patens vs. Anemone deltoidea

	Anemone patens	Anemone deltoidea
	pasqueflower, prairie-crocus	threeleaf anemone, Columbian windflower
Habit	Grayish, hairy perennial from a branched, woody base, the 1-many stems 5-25 cm. tall.	Herbaceous perennial from slender, horizontal rhizomes, the flowering stems 1-3 dm. tall, glabrous to stiff-hairy.
Leaves	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.	Basal leaves usually solitary, the blade tri-foliate, the leaflets short-petiolate, ovate, with coarse, rounded teeth, usually glabrous; the 3 involucral leaves simple, up to 8 cm. long, very similar to the leaflets of the basal leaves.
Flowers	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.	Flowers solitary; sepals usually 5, white, ovate to oblanceolate, 1.5-2.5 cm. long, glabrous; petals none; stamens and pistils numerous; style shorter than the achene.
Fruits	Achenes numerous, silky, linear-ellipsoid, 3 mm. long; style slender, flexuous, short-plumose, 2-3.5 mm. long.	Achene swollen, ovate, 2.5-4 mm. long.

	Anemone patens	Anemone deltoidea
Flowering time	May-August	April-May
Habitat	Prairies to mountain slopes, mostly on well-drained soil.	Dry to moist woodlands at low to middle elevations.
Distribution	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]	Occurring chiefly west of the Cascades crest and east in the Columbia River Gorge in Washington; Washington to California. [WildflowerSearch map] [BONAP county map]
Origin	Native	Native
Conservation status	Threatened in Washington (WANHP)	Not of concern
Sibling taxa	A. deltoidea, A. drummondii, A. lyallii, A. multifida, A. occidentalis, A. oregana, A. parviflora, A. piperi	A. drummondii, A. lyallii, A. multifida, A. occidentalis, A. oregana, A. parviflora, A. patens, A. piperi
Subordinate taxa	A. patens var. multifida
Web links	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	Local floras: 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

Anemone deltoidea

pasqueflower, prairie-crocus

threeleaf anemone, Columbian windflower

Habit

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

Herbaceous perennial from slender, horizontal rhizomes, the flowering stems 1-3 dm. tall, glabrous to stiff-hairy.

Leaves

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.

Basal leaves usually solitary, the blade tri-foliate, the leaflets short-petiolate, ovate, with coarse, rounded teeth, usually glabrous; the 3 involucral leaves simple, up to 8 cm. long, very similar to the leaflets of the basal leaves.

Flowers

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.

Flowers solitary;

sepals usually 5, white, ovate to oblanceolate, 1.5-2.5 cm. long, glabrous;

petals none;

stamens and pistils numerous;

style shorter than the achene.

Fruits

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

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

Achene swollen, ovate, 2.5-4 mm. long.

Anemone patens

Anemone deltoidea

Flowering time

May-August

April-May

Habitat

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

Dry to moist woodlands at low to middle elevations.

Distribution

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]