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Calyptridium roseum
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Rosy Calyptridium
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Calyptridium roseum

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About Rosy Calyptridium (Calyptridium roseum) Cistanthe rosea (formerly Calyptridium roseum) is a species of flowering plant in the purslane family commonly known as rosy pussypaws. It is native to the western United States from California to Wyoming, where it grows in forest and scrub. It is an annual herb, often reddish or pink in color, producing stems just a few centimeters long. The leaves are located in a rosette at the base and along the stems, and are up to 4 or 5 centimeters long. The inflorescence is a tiny cluster of white-edged thin sepals and two white petals, each no more than a millimeter long.
Plant Description
Plant Type
Annual herb, Perennial herb

Flower Color

Native Status

Natural Setting
Elevation ?
2023' - 11979'

Annual Precip. ?
5.0" - 38.0"

Summer Precip. ?
0.58" - 4.21"

Coldest Month ?
22.2° F - 48.6° F

Hottest Month ?
40.0° F - 77.7° F

Humidity ?
1.64 vpd - 30.93 vpd

Landscaping Information
Nursery Availability
Never or Almost Never Available

Other Names
Common Names
Rosy 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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