Ditrysinia is a plant genus of the family Euphorbiaceae first described as a genus in 1825. It contains only one recognized species, Ditrysinia fruticosa, the Gulf Sebastian-bush, native to the southeastern United States (E Texas, Louisiana, SW Arkansas, Mississippi, Alabama, N Florida, Georgia, North + South Carolina).

Formerly included

moved to Stillingia

• Ditrysinia sylvatica (L.) Raf. ex B.D.Jacks. - Stillingia sylvatica L.

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