What type of category does Plantago and Matteuccia have in common?
Plantago: Plantago is a genus of about 200 species of small, inconspicuous plants commonly called plantains or fleaworts. Matteuccia: Matteuccia is a genus of ferns with one species, Matteuccia struthiopteris (common names ostrich fern, fiddlehead fern or shuttlecock fern).
genus