Burke: Anemone parviflora vs. Anemone deltoidea

	Anemone parviflora	Anemone deltoidea
	northern anemone, small-flowered anemone, northern windflower	threeleaf anemone, Columbian windflower
Habit	Sub-glabrous to densely hairy perennial from slender, horizontal rhizomes, the flowering stems 5-20 cm. tall.	Herbaceous perennial from slender, horizontal rhizomes, the flowering stems 1-3 dm. tall, glabrous to stiff-hairy.
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 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 usually 5, white or bluish tinged, hairy on the outer surface, 10-15 mm. 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 densely woolly, obovate, 2-2.5 mm. long; style straight, 1.5-2 mm. long, glabrous.	Achene swollen, ovate, 2.5-4 mm. long.

	Anemone parviflora	Anemone deltoidea
Flowering time	May-August	April-May
Habitat	Mountain meadows and subalpine stream banks.	Dry to moist woodlands at low to middle elevations.
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 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	Not of concern	Not of concern
Sibling taxa	A. deltoidea, A. drummondii, A. lyallii, A. multifida, A. occidentalis, A. oregana, A. patens, A. piperi	A. drummondii, A. lyallii, A. multifida, A. occidentalis, A. oregana, A. parviflora, A. patens, A. piperi
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: 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

northern anemone, small-flowered anemone, northern windflower

threeleaf anemone, Columbian windflower

Habit

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

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

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 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 usually 5, white or bluish tinged, hairy on the outer surface, 10-15 mm. 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 densely woolly, obovate, 2-2.5 mm. long;

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

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

Anemone parviflora

Anemone deltoidea

Flowering time

May-August

April-May

Habitat

Mountain meadows and subalpine stream banks.

Dry to moist woodlands at low to middle elevations.

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]