Which plant is a genus of plants native to Mexico, Neomarica or Trachelium?
Trachelium (plant) Trachelium is a genus of flowering plants in the family Campanulaceae.
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."