Are Daviesia and Rehmannia native to the same countries?
Daviesia Daviesia, commonly known as Bitter-peas, is a large genus of flowering plants in the legume family. They are native to Australia, with a center of diversity in western Australia. The genus is named in honour of Hugh Davies, a Welsh botanist. They have nitrogen-fixing bacteria contained in root nodules like other genera in their family.
Sagittaria Sagittaria is a genus of about 30 species of aquatic plants whose members go by a variety of common names, including arrowhead, duck potato, katniss, "Omodaka" (沢瀉 in Japanese), swamp potato, tule potato, and wapato (or wapatoo). Most are native to South, Central, and North America, but there are also some from Europe, Africa, and Asia.