Epidendrum tridens ("the three-toothed Epidendrum") is a terrestrial orchid closely allied to E. nocturnum, of which it has often been considered a variety or synonym. For example, Reichenbach 1861 lists Epidendrum tridens (Poepp. & Endl.) Cogn. (1898) as a synonym of Epidendrum nocturnum and Epidendrum nocturnum var. latifolium Lindl. (1837) as a distinguishable variety of Epidendrum nocturnum.

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