Conyza fruticosa Linnaeus, Species Plantarum, ed. 2, 2: 1209. 1763.

"Habitat in America meridionali." RCN: 6237.

Lectotype (Keeley in J. Arnold Arbor. 59: 391. 1978): [icon] " Conyza foliis ovatis, floribus axillaribus " in Plumier in Burman, Pl. Amer.: 83, t. 95, f. 1. 1756.

Current name: Vernonia fruticosa (L.) Sw. ( Asteraceae).