been considered a valid species since it was first described by the English botanist and gardener John Lindley in 1821, but it was considered a hybrid of D. grandiflora and D. laevigata by the German botanist in 1960.

Systematics

The first full monograph regarding this genus was written by Lindley in 1821. He included two sections, a section Isoplexis including two species, and the

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