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guayule
(gwaɪˈuːliː, ‖ hwaɪˈuli)
[a. Amer. Sp. guayule, f. Nahuatl cuauhuli.]
A silver-leaved shrub, Parthenium argentatum, of the family Compositæ, native to northern Mexico and adjacent parts of Texas, formerly cultivated as the source of a type of rubber; also, the rubber produced from the plant.
1906Bull. Imper. Inst. IV. 114 The Guayule rubber of Mexico. Ibid., The Guayule plant. Ibid. 115 The Guayule is found at altitudes ranging from 3,000 to 5,600 feet. 1926P. C. Standley Trees & Shrubs of Mexico v. 1520 The guayule rubber plant is one of the most important members of the Mexican flora. 1939J. Steinbeck Grapes of Wrath ix. 102 Remember a fella wanted us to put in that rubber bush they call guayule. 1944Bot. Gaz. CVI. 198/1 The experiments indicate that substances unfavorable to the growth of guayule plants emanate from the roots of actively growing plants of this species [sc. guayule]. 1964F. O'Rourke Mule for Marquesa 72 The distant green of deceptively deadly ocotillo savannahs, filled with the scorched grey of candelilla and guayule. 1969A. S. Craig Dict. Rubber Technol. 75 Intensive research, started in 1942, has not succeeded in making guayule competitive with Hevea rubber, and since 1962 there has been no commercial production. |