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Clarkia arcuata
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Glandular Fairyfan
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Clarkia arcuata

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About Glandular Fairyfan (Clarkia arcuata) Clarkia arcuata is a species of flowering plant in the evening primrose family known by the common name hairy clarkia. It is endemic to California, where it grows in the chaparral and woodlands of the foothills of the Sierra Nevada and southern Cascade Range. It is an annual herb producing a slender, erect stem often exceeding half a meter in height. The leaves are narrow, usually linear or lance-shaped, and up to 6 centimeters long. The flower cluster bears a few flowers, which dangle when they are buds and grow erect as they open. The sepals stay fused as the petals open and emerge from one side. They are coated in hairy hairs. The petals are up to 3 centimeters long, pink-lavender in color, sometimes with a reddish blotch at the base. They form a bowl-shaped corolla. There are 8 stamens and a protruding, four-chambered ovary. The fruit is an elongated capsule which may reach 3.5 centimeters long.
Plant Description
Plant Type
Annual herb

Max. Height
1.6 - 2.6 ft (0.49 - 0.8 m)

Flower Color

Native Status

Natural Setting
Site Type
Open places, Spring-moist soils

Sun, Part Shade

Elevation ?
217' - 5417'

Annual Precip. ?
12.7" - 71.4"

Summer Precip. ?
0.36" - 1.96"

Coldest Month ?
36.3° F - 51.6° F

Hottest Month ?
62.8° F - 76.0° F

Humidity ?
1.83 vpd - 24.85 vpd

Landscaping Information
Common uses
Butterfly Gardens, Bee Gardens

Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Hairy Clarkia, Glandular Clarkia

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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