摘要：Stramentopappus congestiflorus Redonda-Martínez and Villaseñor (Asteraceae: Vernonieae: Leiboldiinae)from Sierra de Juárez in Oaxaca, Mexico, is described and illustrated. It is distinguished from the other species of thegenus by its tightly-clustered capitula forming glomerules and by fewer florets per capitulum. A key to the 2 speciesis provided.
