ⓘ Dicerandra

                                     

ⓘ Dicerandra

Dicerandra is a genus of flowering plants in the mint family. Dicerandra comprises 11 species: six perennial and five annual species. The perennials have narrow ranges in Central Florida with small population sizes and only occur on ancient dune ridges along the Lake Wales Ridge or the Atlantic coastal ridge, the annual species occur more broadly on sandhill habitats to the north. The perennials’ habitat has been severely fragmented due to human development over the past century. As a result, all perennial species except one are listed as federally endangered. Annual species of the clade have large ranges when compared to perennial members, with distributions of annuals ranging for hundreds of miles from the Panhandle of Florida to southeastern Georgia, with the exception of Dicerandra radfordiana which is endemic to two sites along the Altamaha river. The genus is characterized by hornlike spurs on their anthers.

Phylogenetics in this genus has been studied previously, the first Robin Huck in 1987, which is described in section Dicerandra, which includes all kinds of standard-lobed Corolla and protruding stamens, and section Lecontea which includes D. odoratissima and D. radfordiana that cucullate-lobed Corolla species with inserted stamens. Subsequent studies of plant taxonomists at the University of Florida confirmed these sections, along with the potential of chloroplast capture in Dicerandra Immaculata VAR savannarum.