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Wingfruit Suncup
Chylismiella pterosperma

About Wingfruit Suncup (Chylismiella pterosperma) Chylismiella pterosperma is a species of evening primrose known by the common name wingfruit suncup and is the only species in the monotypic genus Chylismiella. It is native to the western United States, where it grows in several habitat types, including sagebrush. It is a slender annual herb producing an erect stem up to about 14 centimeters in height. The leaves are up to 3 centimeters long and densely coated in bristly hairs. The nodding inflorescence produces flowers with white petals each less than 3 millimeters long. They are sometimes yellow near the bases and fade to a purple color as they wither. The fruit is a straight capsule about 1 to 3 centimeters long with a thick wing down the middle.
Plant Description
Plant Type

Max. Height
0.8 - 5.5 in (2 - 14 cm)

Flower Color
Yellow, White

Native Status

Natural Setting
Elevation ?
4293' - 8756'

Annual Precip. ?
5.2" - 13.6"

Summer Precip. ?
0.53" - 2.38"

Coldest Month ?
29.7° F - 42.3° F

Hottest Month ?
52.6° F - 73.1° F

Humidity ?
1.97 vpd - 26.72 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Wing-fruit Sun-cup

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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