Conyza arborescens Linnaeus , Systema Naturae , ed. 10, 2 : 1213. 1759 Chapter 7: Linnaean Plant Names and their Types (part C) Jarvis, Charlie 5B4FM (L.) Sw. Sw. Linnaeus 1759 Magnoliopsida Asteraceae Vernonia Plantae Asterales Tracheophyta species arborescens      Conyza arborescensLinnaeus,  Systema Naturae, ed. 10, 2: 1213. 1759.  ["Habitat in America meridionali."] Sp. Pl., ed. 2, 2: 1209 (1763). RCN: 6236.   Lectotype(Keeley in Syst. Bot.7: 80. 1982): [icon] "  Conyzafoliis ovatis" in Plumier in Burman, Pl. Amer.: 122, t. 130, f. 2. 1757.