Laennecia
Laennecia or Laënnecia is a genus of flowering plants in the sunflower family. The plants are native to Mesoamerica, South America, and the southwestern United States. Common name is "horseweed."
; Species
- Laennecia altoandina G.L.Nesom - Jujuy in Argentina, La Paz in Bolivia, Cusco in Peru
- Laennecia araneosa G.Sancho & Pruski - Dominican Republic
- Laennecia artemisiifolia G.L.Nesom
- Laennecia chihuahuana G.L.Nesom - Chihuahua
- Laennecia confusa G.L.Nesom - Chiapas, Guatemala, Costa Rica
- Laennecia coulteri G.L.Nesom - Mexico, United States
- Laennecia eriophylla G.L.Nesom - Arizona
- Laennecia filaginoides DC. - Central America, Colombia, Ecuador, Venezuela, Mexico, Texas
- Laennecia gnaphalioides Cass. - Chiapas, Oaxaca, Central America, Colombia, Ecuador, Peru, Bolivia, Venezuela
- Laennecia microglossa G.L.Nesom - Nuevo León
- Laennecia pimana G.L.Nesom & Laferr. - Chihuahua
- Laennecia schiedeana G.L.Nesom - Central America, Mexico, USA
- Laennecia sophiifolia G.L.Nesom - South America, Mesoamerica, USA
- Laennecia spellenbergii G.L.Nesom - Durango
- Laennecia turnerorum G.L.Nesom - Texas
