Burke: Anemone oregana vs. Anemone parviflora

	Anemone oregana	Anemone parviflora
	Oregon anemone, Oregon windflower	northern anemone, small-flowered anemone, northern windflower
Habit	Perennial from scaly, stout, horizontal rhizomes, the flowering stems 1-3 dm. tall.	Sub-glabrous to densely hairy perennial from slender, horizontal rhizomes, the flowering stems 5-20 cm. tall.
Leaves	Basal leaves single, trifoliate, the leaflets once or twice shallowly lobed and remotely serrate; the flowering stem naked except for a whorl of 3 leaves near the top, these trifoliate, petiolate, the leaflets up to 8 cm. long, the lateral pair deeply lobed, all remotely toothed.	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.
Flowers	Flowers single; sepals usually 5, ovate-oblong, 12-20 mm. long, usually blue to blue-violet, but occasionally white or pinkish; petals none; stamens 35-100; pistils numerous.	Flowers single: sepals usually 5, white or bluish tinged, hairy on the outer surface, 10-15 mm. long; petals none; stamens and pistils numerous.
Fruits	Achenes narrowly oblong, 4 mm. long, finely pubescent; style 0.5 mm. long, glabrous.	Achenes densely woolly, obovate, 2-2.5 mm. long; style straight, 1.5-2 mm. long, glabrous.

	Anemone oregana	Anemone parviflora
Flowering time	March-June	May-August
Habitat	Moist, open woods, low to mid-elevations in the mountains, also in marshes and bogs along the coast.	Mountain meadows and subalpine stream banks.
Distribution	Occurring in forested areas on both sides of the Cascades crest in Washington; Washington to northern California. [WildflowerSearch map] [BONAP county map]	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]
Origin	Native	Native
Conservation status	Not of concern	Not of concern
Sibling taxa	A. deltoidea, A. drummondii, A. lyallii, A. multifida, A. occidentalis, A. parviflora, A. patens, A. piperi	A. deltoidea, A. drummondii, A. lyallii, A. multifida, A. occidentalis, A. oregana, A. patens, A. piperi
Subordinate taxa	A. oregana var. felix, A. oregana var. oregana
Web links	Local floras: OR, WA Local Web sites: 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	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 parviflora

Oregon anemone, Oregon windflower

northern anemone, small-flowered anemone, northern windflower

Habit

Perennial from scaly, stout, horizontal rhizomes, the flowering stems 1-3 dm. tall.

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

Leaves

Basal leaves single, trifoliate, the leaflets once or twice shallowly lobed and remotely serrate; the flowering stem naked except for a whorl of 3 leaves near the top, these trifoliate, petiolate, the leaflets up to 8 cm. long, the lateral pair deeply lobed, all remotely toothed.

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.

Flowers

Flowers single;

sepals usually 5, ovate-oblong, 12-20 mm. long, usually blue to blue-violet, but occasionally white or pinkish;

petals none;

stamens 35-100;

pistils numerous.

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

petals none;

stamens and pistils numerous.

Fruits

Achenes narrowly oblong, 4 mm. long, finely pubescent;

style 0.5 mm. long, glabrous.

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

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

Anemone oregana

Anemone parviflora

Flowering time

March-June

May-August

Habitat

Moist, open woods, low to mid-elevations in the mountains, also in marshes and bogs along the coast.

Mountain meadows and subalpine stream banks.

Distribution

Occurring in forested areas on both sides of the Cascades crest in Washington; Washington to northern California.

[WildflowerSearch map]

[BONAP county map]

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]

Origin

Native

Conservation status

Not of concern

Sibling taxa