Houstonia
Houstonia L. = Hedyotis
synonymous genus Rubiaceae Rubioideae Hedyotideae

Sp. Pl. 1: 105 (1753)
[Species Plantarum]
  1. Terrell, EE, Revision of Houstonia (Rubiaceae-Hedyotideae), Systematic Botany Monographs vol. 48: 1-118 (1996).

Illustrations originally published under Houstonia L. :
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