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Small Flowered Evening Primrose
Camissoniopsis micrantha
About Small Flowered Evening Primrose (Camissoniopsis micrantha) Nurseries Show All Photos Camissonia micrantha is a species of flowering plant in the evening primrose family known by the common name miniature suncup. It is endemic to California, where it grows along the coast and in the coastal mountains as far north as the San Francisco Bay Area, as well as in the Central Valley. It grows in sandy areas in a number of habitats, from beaches to inland slopes. This is a small, hairy annual herb producing a basal rosette of leaves. The stem varies in morphology, approaching half a meter in erect height or quite short and flat, with or without branching. The larger leaves are located in the basal rosette; those on the stem are narrow and shorter. The flower cluster produces bears a number of flowers with petals less than 5 millimeters long. They are bright yellow and dry to a reddish color as they close. If the flower cluster is located on an erect stem it bends the stem over with its weight. The flowers self-pollinate. The fruit is a cylindrical capsule 1 to 2 centimeters long.
Plant Description
Plant Type
Annual herb

Max. Height
1 - 2 ft (0.3 - 0.6 m)

Flower Color

Native Status

Natural Setting
Site Type
Dunes, beaches, sandy fields, washes


Elevation ?
-245' - 5526'

Annual Precip. ?
3.8" - 48.8"

Summer Precip. ?
0.14" - 1.99"

Coldest Month ?
37.1° F - 57.3° F

Hottest Month ?
59.6° F - 87.0° F

Humidity ?
0.44 vpd - 37.84 vpd


Landscaping Information
Water Requirement ?
Extremely Low
Very Low
Moderate - High

Nursery Availability
Rarely Available

Other Names
Botanical Names
Camissonia micrantha

Common Names
Miniature Suncup, Small-flowered Evening Primrose

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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