Plantae > Tracheophyta > Magnoliopsida > Gentianales > Rubiaceae > Houstonia purpurea > Houstonia purpurea var. calycosa Houstonia purpurea var. calycosaSynonyms: Hedyotis calycosa (homotypic); Hedyotis lanceolata; Hedyotis purpurea var. calycosa; Houstonia calycosa (homotypic); Houstonia lanceolata
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