Croton glandulosus is one of the most common and widespread species of the genus. It is a morphologically variable species for which more than thirty varieties have been described. This work provides a critical evaluation of the varieties of C. glandulosus that have been applied to specimens from North America north of Mexico. Five natively occurring varieties are recognized in this region. Several varieties are reduced to synonymy, and the new combination C. glandulosus var. arenicola is made. Lectotypes are designated for those varieties lacking a designated holotype.
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1 June 2009
An Assessment of the Varieties of Croton glandulosus (Euphorbiaceae) in the United States
Benjamin Van Ee,
Paul E. Berry,
Steven Ginzbarg
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Croton glandulosus
Euphorbiaceae
North America
varieties