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Rhigospira is a genus of flowering plants in the family Apocynaceae, first described as a genus in 1878 by John Miers. The species, Rhigospira quadrangularis was first described as Ambelania quadrangularis by Johannes Müller Argoviensis in 1860 but was transferred to the genus, Rhigospira, in 1878 by John Miers. The genus contains only one known species, Rhigospira quadrangularis, native to northwestern South America (Colombia, Venezuela, Peru, NW Brazil).
formerly placed in the genus
Text excerpted from the Wikipedia article Rhigospira by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
