1. (noun) much-branched subshrub with silvery leaves and small white flowers of Texas and northern Mexico; cultivated as a source of rubber

• guayule

1. (noun) much-branched subshrub with silvery leaves and small white flowers of Texas and northern Mexico; cultivated as a source of rubber

• genus parthenium
• parthenium

1. (noun) much-branched subshrub with silvery leaves and small white flowers of Texas and northern Mexico; cultivated as a source of rubber

• subshrub
• suffrutex