Laennecia
# Laennecia

Laennecia or Laënnecia is a genus of flowering plants in the family Asteraceae. The plants are native to Mesoamerica, South America, and the southwestern United States. Common name is "horseweed."

## Species

* Laennecia altoandina (Cabrera) G.L.Nesom - Jujuy in Argentina, La Paz in Bolivia, Cusco in Peru
* Laennecia araneosa (Urb.) G.Sancho & Pruski - Dominican Republic
* Laennecia artemisiifolia (Meyen & Walp.) G.L.Nesom
* Laennecia chihuahuana G.L.Nesom - Chihuahua
* Laennecia confusa (Cronquist) G.L.Nesom - Chiapas, Guatemala, Costa Rica
* Laennecia coulteri (A.Gray) G.L.Nesom - Mexico (Coahuila, Nuevo León, Sonora), United States (CA NV AZ UT CO NM TX AL)
* Laennecia eriophylla (A.Gray) G.L.Nesom - Arizona (Pima, Santa Cruz, Cochise Counties)
* Laennecia filaginoides DC. - Central America, Colombia, Ecuador, Venezuela, Mexico, Texas
* Laennecia gnaphalioides (Kunth) Cass. - Chiapas, Oaxaca, Central America, Colombia, Ecuador, Peru, Bolivia, Venezuela
* Laennecia microglossa (S.F.Blake) G.L.Nesom - Nuevo León
* Laennecia pimana G.L.Nesom & Laferr. - Chihuahua
* Laennecia schiedeana (Less.) G.L.Nesom - Central America, Mexico, USA (AZ CO NM)
* Laennecia sophiifolia (Kunth) G.L.Nesom - South America, Mesoamerica, USA (AZ TX NM)
* Laennecia spellenbergii G.L.Nesom - Durango
* Laennecia turnerorum G.L.Nesom - Texas (Brewster County)
