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Cooper's Rubberweed
Hymenoxys cooperi
  
0 Nurseries Carry This Plant

About Cooper's Rubberweed (Hymenoxys cooperi) 0 Nurseries Carry This Plant Hymenoxys cooperi is a species of flowering plant in the daisy family known by the common name Cooper's rubberweed. It is native to the southwestern United States and Great Basin, where it grows in rocky soils in arid regions from southern California to New Mexico, north as far as Idaho and Oregon. Hymenoxys cooperi is a biennial or perennial herb with a branching stem growing erect to heights between 15 and 90 centimeters (6-36 inches or 0. 5-3. 0 feet). It produces narrow, pointed leaves with two lateral lobes that form a trident shape. The foliage and stem are glandular and waxy, usually with a thin coat of light-colored hairs. The daisy-like flower head is a cup of fused phyllaries with 30-150 tiny yellow-orange disc florets surrounded by 9-14 bright yellow ray florets, each ray about a centimeter (0. 4 inches) long.
Plant Description
Plant Type
Plant Type
Perennial herb

Size
Size
0.49 - 3 ft tall

Flower Color
Flower Color
Yellow, Orange

Landscaping Information
Natural Setting
Climate
Climate
Annual Precipitation: 5.1" - 38.0", Summer Precipitation: 0.72" - 3.28", Coldest Month: 22.0" - 50.6", Hottest Month: 40.8" - 78.2", Humidity: 1.84" - 29.55", Elevation: 2440" - 12068"

Alternative Names
Common Names: Gray Cooper's Goldflower


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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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