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Anemone occidentalis
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Western Pasque Flower
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Anemone occidentalis
  

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About Western Pasque Flower (Anemone occidentalis) Anemone occidentalis (Western pasqueflower) is a herbaceous plant species in the genus Anemone and family Ranunculaceae. Often also placed in the genus Pulsatilla by other authorities. Plants grow 10 to 60 centimeter tall, from caudices. Plants normally produce 3 to 6 leaves at the base of the plant that are 3-foliolate, each leaflet pinnatifid to dissected in shape. Leaf petioles 6-10 centimeter long. Leaves with villous hairs margins pinnatifid or dissected. Plants flowering mid spring to mid summer with the flowers composed of 5 to 7 sepals (sometimes called petals) normally white or soft purple, also mixed white and blueish purple, one flower per stem, the sepals are 15 to 30 millimeter long and 10 to 17 millimeter wide. Flowers with 150-200 stamens. Fruits in heads rounded to subcylindric in shape, pedicels 15 to 20 centimeter long. The achenes are ellipsoid in shape, not winged, covered with villous hairs, with beaks curved that reflex as they age and 20-40 millimeter long, feather-like. Native to far western North America including British Columbia to California and Montana, it is found growing in gravelly soils on slopes and in moist meadows.
Plant Description
Plant Type
Perennial herb

Max. Height
0.33 - 2.5 ft (0.1 - 0.8 m)

Flower Color
White, Pink, Purple, Blue

Native Status
Native

Natural Setting
Site Type
Open, rocky slopes

Sun
Sun

Elevation ?
262' - 14090'

Annual Precip. ?
6.7" - 124.9"

Summer Precip. ?
0.61" - 4.42"

Coldest Month ?
10.8° F - 49.8° F

Hottest Month ?
34.1° F - 74.5° F

Humidity ?
1.27 vpd - 26.97 vpd

Landscaping Information
Propagation ?
For propagating by seed: No treatment. (Emery and Frey 1971).

Nursery Availability
Never or Almost Never Available

Nurseries

Sources include: Wikipedia. All text shown in the "About" section of these pages is available under the Creative Commons Attribution-ShareAlike License. Plant observation data provided by the participants of the California Consortia of Herbaria, Sunset information provided by Jepson Flora Project. Propogation from seed information provided by the Santa Barbara Botanical Garden from "Seed Propagation of Native California Plants" by Dara E. Emery. Sources of plant photos include CalPhotos, Wikimedia Commons, and independent plant photographers who have agreed to share their images with Calscape. Other general sources of information include Calflora, CNPS Manual of Vegetation Online, Jepson Flora Project, Las Pilitas, Theodore Payne, Tree of Life, The Xerces Society, and information provided by CNPS volunteer editors, with special thanks to Don Rideout. Climate data used in creation of plant range maps is from PRISM Climate Group, Oregon State University, using 30 year (1981-2010) annual "normals" at an 800 meter spatial resolution.

Links:   Jepson eFlora Taxon Page  CalPhotos  Wikipedia  Calflora

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