Houstonia caerulea Linnaeus, Species Plantarum 1: 105. 1753.

"Habitat in Virginia." RCN: 857.

Lectotype (Reveal & al. in Huntia 7: 227. 1987): Clayton 60 [ “63”] (BM-000042705).

Generitype of Houstonia Linnaeus (vide Hitchcock, Prop. Brit. Bot.: 124. 1929).

Current name: Houstonia caerulea L. ( Rubiaceae).