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Grassland Suncup
Camissonia lacustris
About Grassland Suncup (Camissonia lacustris) 0 Nurseries Carry This Plant Camissonia lacustris is a species of evening primrose known by the common name grassland suncup. It is endemic to California, where it grows on the grasslands of the Sierra Nevada foothills. It is also known from an area in the Northern Coast Ranges in Lake County. This is an annual herb producing an erect or spreading, sometimes bending or twisting, hairy stem approaching half a meter in maximum length. The leaves grow along the stem and are less than 4 centimeters long and linear or narrowly oval in shape. The nodding inflorescence produces flowers with yellow petals about half a centimeter in length. The petals sometimes have two red dots at their bases. The fruit is a straight wavy capsule which may be several centimeters long.
Plant Description
Plant Type
Plant Type
Annual herb

1.6 ft tall

Flower Color
Flower Color
Yellow, Red

Wildlife Supported

Butterflies & moths hosted ( 2 likely * ) SHOW ALL

Landscaping Information
Natural Setting
Annual Precipitation: 6.7" - 46.2", Summer Precipitation: 0.42" - 1.48", Coldest Month: 33.6" - 46.5", Hottest Month: 59.8" - 75.1", Humidity: 1.15" - 26.81", Elevation: 1340" - 6166"

Alternative Names
Common Names: Lakebed Sun Cups

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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