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Pulsatilla occidentalis

Pulsatilla occidentalis (S. Watson) Freyn

Anemone occidentalis S. Watson

White Pasqueflower, Western Pasque Flower, Mountain Pasqueflower, Pulsatille

ParentsUnknownGenus is not in the current taxonomy
GenusPulsatilla
Speciesoccidentalis

About plant names...

White pasqueflowers like higher elevations along the west coast of North America.

Identification: I still haven’t seen a white pasqueflower in person, but when I spied a group of cotton balls bobbing in the volcanic soil on the roadside on the way to Crater Lake on Mt. Mazama, I was captivated. Took me awhile to identify them. Flowers are white or slightly yellowish, 1¼-2" (3.2-5 cm) across, with 8 petals and yellow centers. Each stem bears a single flower. Seedheads are roughly circular, slightly elongated, a bit shaggy looking, grayish white, soft looking. At close range there are tiny red threads. Leaves are light green, fernlike. The plants are 8-24" (20-60 cm) high. These plants are found at high elevations, from about the tree line to about 1.9 mi (3 km).

Pulsatilla occidentalis (White Pasqueflower, Western Pasque Flower, Mountain Pasqueflower, Pulsatille)

Photo by Walter Siegmund, taken on the Knapsack Pass climber’s route, Mount Rainier National Park, on 7/28/2007, elevation 6070’.

Pulsatilla occidentalis (White Pasqueflower, Western Pasque Flower, Mountain Pasqueflower, Pulsatille)

Photo by Walter Siegmund, on the Rainshadow Loop Nature Trail, Olympic National Park, 7/4/2008, elevation 5912’.

Edibility: Poisonous. Skull & Crossbones All members of the buttercup family are poisonous.

Online References:

Pulsatilla occidentalis on Wildflowers, Ferns & Trees of Colorado, New Mexico, Arizona, and Utah

Pulsatilla occidentalis at the Lady Bird Johnson Wildflower Center

Pulsatilla occidentalis on eFloras

Pulsatilla occidentalis on CalPhotos

Pulsatilla occidentalis at the Lady Bird Johnson Wildflower Center

References:

Spellenberg, Richard, National Audabon Society Field Guide to Wildflowers, Western Region, Alfred A. Knopf, 2001, p. 716

Pulsatilla occidentalis description by Thomas H. Kent, last updated 16 Aug 2013.

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Pulsatilla occidentalis (White Pasqueflower, Western Pasque Flower, Mountain Pasqueflower, Pulsatille)

The elevation is about 8,000'. · 8/29/2007 · Mt. Mazama Crater Lake Rim Road, OR
≈ 8 × 12" (21 × 31 cm)

Pulsatilla occidentalis (White Pasqueflower, Western Pasque Flower, Mountain Pasqueflower, Pulsatille)

The elevation is about 8,000'. · 8/29/2007 · Mt. Mazama Crater Lake Rim Road, OR
≈ 12 × 17" (29 × 44 cm)

Range: Zones 3-8:

About this map...