Eupatorium houstonianum Linnaeus, Species Plantarum 2: 836. 1753.

"Habitat in Vera Cruce." RCN: 6054.

Lectotype (King & Robinson in Woodson & Schery in Ann. Missouri Bot. Gard. 62: 973. 1975): Herb. Clifford: 396, Eupatorium 6 (BM-000646954; iso- MW) .

Current name: Mikania houstoniana (L.) B.L. Rob. ( Asteraceae).