Trichopetalum is a genus of flowering plants in the family Asparagaceae, subfamily Lomandroideae, native to southern South America.
The genus includes two species:
- Trichopetalum chosmalensis <small>Guagl. & Belgrano</small> - Neuquén Province of Argentina
- Trichopetalum plumosum <small>(Ruiz & Pav.) J.F.Macbr.</small> - Chile
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