Amsonia

Amsonia is a genus of flowering plants in the dogbane family, Apocynaceae, first described as a genus in 1788. It is native primarily to North America with one species in East Asia and another in the eastern Mediterranean. It was named in honor of the American physician John Amson. Members of the genus are commonly known as bluestars. Species Amsonia ciliata Walter – fringed bluestar – SE US, S Great Plains Amsonia elliptica (Thunb. ex Murray) Roem. & Schult. – Japanese bluestar – China, Japan, Korea Amsonia fugatei S.P.McLaughlin – San Antonio bluestar – New Mexico Amsonia grandiflora Alexander – Arizona bluestar – Arizona, Sonora, Durango Amsonia hubrichtii Woodson – Hubricht's bluestar – Arkansas, Oklahoma Amsonia illustris Woodson – Ozark bluestar – Mississippi Valley, also Nevada Amsonia jonesii Woodson – Jones' bluestar – Arizona, New Mexico, Utah, Colorado Amsonia kearneyana Woodson – Kearney's bluestar – Baboquivari in Pima Co. in Arizona Amsonia longiflora Torr. – tubular blu......read more on Wikipedia.