Burke: Anemone parviflora vs. Anemone lyallii

	Anemone parviflora	Anemone lyallii
	northern anemone, small-flowered anemone, northern windflower	little mountain anemone, Lyall's anemone, Lyall's windflower
Habit	Sub-glabrous to densely hairy perennial from slender, horizontal rhizomes, the flowering stems 5-20 cm. tall.	Perennial from light-colored, slender, scaly, horizontal rhizomes, the flowering stems 5-25 cm. tall, glabrous to puberulent.
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 one, thin, trifoliate, mostly glabrous, the leaflets 1-3 cm. long, bi-serrate with rounded teeth, the lateral pair often deeply lobed; the flowering stem naked except for a whorl of 3 leaves near the midpoint, these similar to 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 single; sepals usually 5, white, or sometimes bluish or pinkish, oblong, 6-10 mm. long; petals none; stamens 12-20; pistils numerous.
Fruits	Achenes densely woolly, obovate, 2-2.5 mm. long; style straight, 1.5-2 mm. long, glabrous.	Achenes ovate, 3-4 mm. long, finely pubescent; style 0.5 mm. long.

	Anemone parviflora	Anemone lyallii
Flowering time	May-August	March-July
Habitat	Mountain meadows and subalpine stream banks.	Low elevation prairies to subalpine ridges.
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 in Washington; British Columbia 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. deltoidea, A. drummondii, 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: 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

Anemone lyallii

northern anemone, small-flowered anemone, northern windflower

little mountain anemone, Lyall's anemone, Lyall's windflower

Habit

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

Perennial from light-colored, slender, scaly, horizontal rhizomes, the flowering stems 5-25 cm. tall, glabrous to puberulent.

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 one, thin, trifoliate, mostly glabrous, the leaflets 1-3 cm. long, bi-serrate with rounded teeth, the lateral pair often deeply lobed; the flowering stem naked except for a whorl of 3 leaves near the midpoint, these similar to 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 single;

sepals usually 5, white, or sometimes bluish or pinkish, oblong, 6-10 mm. long;

petals none;

stamens 12-20;

pistils numerous.

Fruits

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

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

Achenes ovate, 3-4 mm. long, finely pubescent;

style 0.5 mm. long.

Anemone parviflora

Anemone lyallii

Flowering time

May-August

March-July

Habitat

Mountain meadows and subalpine stream banks.

Low elevation prairies to subalpine ridges.

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]