Which is considered a genus level classification, Apera or Gunnera manicata?
Apera Apera is a small genus of annual grasses, known commonly as silkybent grass or windgrass. They are native to Europe, North Africa and parts of Asia but have been introduced and naturalized in much of North and South America.United States Department of Agriculture Plants Profile
Mimosa pigra Mimosa pigra, commonly known as the giant sensitive tree, ("pigra" = lazy, slow), is a species of the genus "Mimosa", in the family Fabaceae. It is native to the Neotropics, but has been listed as one of the world's 100 worst invasive species and forms dense, thorny, impenetrable thickets, particularly in wet areas.