Rubis, David D. Department of Plant Sciences, College of Agriculture, The University of Arizona, Tucson, Arizona.
Cassens, Linda J. Department of Plant Sciences, College of Agriculture, The University of Arizona, Tucson, Arizona.
Last reviewed:January 2020
- Breeding and cultivation
- Related Primary Literature
- Additional Reading
A desert plant, Parthenium argentatum, cultivated as a source of rubber. Guayule belongs to the aster family (Asteraceae). It is a native perennial shrub that grows in the Chihuahuan Desert of north-central Mexico and southwestern Texas. The plant (see illustration) is a bushy flowering shrub and has dense branches, thick clusters of silverlike leaves, a strong taproot, and a thick crown. At maturity, the plant varies in height from 76 to 102 cm (30 to 40 in.). See also: Asterales
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