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Mount Diablo Cottonseed
Micropus amphibolus
About Mount Diablo Cottonseed (Micropus amphibolus) 0 Nurseries Carry This Plant Micropus amphibolus is a species of flowering plant in the aster family known by the common name Mount Diablo cottonseed. It is endemic to California, where it is known from the San Francisco Bay Area and nearby mountains, growing in open, rocky habitat. It is an annual herb similar in appearance to its relative, the "Q-tips". It produces one or more small, erect stems coated thinly in wispy, webby fibers. The inflorescence is a spherical flower head a few millimeters wide which resembles a tiny cotton boll since the flowers and maturing fruits are very woolly.
Plant Description
Plant Type
Plant Type
Annual herb

Landscaping Information
Natural Setting
Annual Precipitation: 18.9" - 69.9", Summer Precipitation: 0.16" - 0.89", Coldest Month: 41.8" - 52.5", Hottest Month: 63.6" - 74.8", Humidity: 0.39" - 24.21", Elevation: 26" - 3950"

Alternative Names
Common Names: Mt. Diablo Cottonseed

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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