Pterostemon

noun Ptero·ste·mon \ -ˈstēmən \

Definition of Pterostemon

: a genus of Mexican shrubs (family Saxifragaceae) having pubescent twigs, alternate dentate leaves, showy white perfect flowers in cymes, and capsular fruit

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Origin and Etymology of pterostemon

New Latin, from pter- + Greek stēmōn warp, thread


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