Understanding Praxelis (Asteraceae, Eupatorieae): an updated taxonomy with lectotypifications and morphological and distributional clarifications

SALGADO, VANINA G.; GROSSI, MARIANA A.; RIBEIRO, ROGÉRIO N.; PROENÇA, CAROLYN E. B.; GUTIÉRREZ, DIEGO G.

AUSTRALIAN SYSTEMATIC BOTANY

CSIRO PUBLISHING

Lugar: Collingwood; Año: 2022 vol. 35 p. 198 - 218

1030-1887

The South American genus Praxelis Cass. (Asteraceae, Eupatorieae) includes 18 species and is thesecond-largest genus of subtribe Praxelinae. It is distributed from Colombia, Venezuela and theGuianas, to central Argentina, southern Brazil and north-western Uruguay. Over the past 40 years, one species, P. clematidea, has invaded several countries around the world. To understand Praxelis and its species, this study provides an updated taxonomy with the re-establishment of P. urticeafolim var. nanum as a synonym of P. ostenii, 16 lectotypifications, clarification of morphology and geographical distribution, brief descriptions, and the first key to all the species in the genus.