Burke: Anemone parviflora vs. Anemone piperi

	Anemone parviflora	Anemone piperi
	northern anemone, small-flowered anemone, northern windflower	Piper's anemone, Piper's windflower
Habit	Sub-glabrous to densely hairy perennial from slender, horizontal rhizomes, the flowering stems 5-20 cm. tall.	Perennial with deep-seated roots from which arise scaly, dark-brown rhizomes, the flowering stems 1.5-3.5 dm. 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 single, trifoliate, long-petiolate, the leaflets coarsely bi-serrate, the lateral pair often bi-lobed over half their length; the flowering stem naked except for a whorl of 3 leaves near the top, these similar to the basal leaves but somewhat larger and appressed short-hairy.
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, white or pinkish, 12-16 mm. long; petals none; stamens 35-55; pistils numerous.
Fruits	Achenes densely woolly, obovate, 2-2.5 mm. long; style straight, 1.5-2 mm. long, glabrous.	Achenes elliptic, 3 mm. long; style 0.5 mm. long, glabrous.

	Anemone parviflora	Anemone piperi
Flowering time	May-August	April-June
Habitat	Mountain meadows and subalpine stream banks.	Shady woods at moderate elevations in the mountains.
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 Washington in the far eastern part of the state; Washington to northeast Oregon east to Idaho and western Montana. [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. deltoidea, A. drummondii, A. lyallii, A. multifida, A. occidentalis, A. oregana, A. parviflora, A. patens
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, 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

Anemone piperi

northern anemone, small-flowered anemone, northern windflower

Piper's anemone, Piper's windflower

Habit

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

Perennial with deep-seated roots from which arise scaly, dark-brown rhizomes, the flowering stems 1.5-3.5 dm. 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 single, trifoliate, long-petiolate, the leaflets coarsely bi-serrate, the lateral pair often bi-lobed over half their length; the flowering stem naked except for a whorl of 3 leaves near the top, these similar to the basal leaves but somewhat larger and appressed short-hairy.

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, white or pinkish, 12-16 mm. long;

petals none;

stamens 35-55;

pistils numerous.

Fruits

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

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

Achenes elliptic, 3 mm. long;

style 0.5 mm. long, glabrous.

Anemone parviflora

Anemone piperi

Flowering time

May-August

April-June

Habitat

Mountain meadows and subalpine stream banks.

Shady woods at moderate elevations in the mountains.

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 Washington in the far eastern part of the state; Washington to northeast Oregon east to Idaho and western Montana.

[WildflowerSearch map]

[BONAP county map]

Origin

Native

Conservation status

Not of concern

Sibling taxa