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One Seeded Pussypaws Back to Plant Page
Calyptridium monospermum

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About One Seeded Pussypaws (Calyptridium monospermum) Calyptridium monospermum (formerly Cistanthe monosperma) is a perennial plant in the MIner's Lettuce Family (Montiaceae), known by the common name one-seeded pussypaws. It was formerly classified in the Purslane Family (Portulacaceae). It is native to western North America from Oregon to Baja California, where it grows in a number of habitat types, including forest and woodland.
Plant Description
Plant Type
Annual herb, Perennial herb

Max. Height
1.6 ft (0.49 m)

Native Status

Natural Setting
Site Type
Open, sandy or gravelly soils

Sun, Part Shade

Elevation ?
396' - 13160'

Annual Precip. ?
11.0" - 154.7"

Summer Precip. ?
0.44" - 5.95"

Coldest Month ?
19.4° F - 51.7° F

Hottest Month ?
37.8° F - 76.2° F

Humidity ?
0.46 vpd - 24.14 vpd


Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
One-seeded Pussypaws

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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