Doellingeria sericocarpoides (common names the southern tall flat-topped aster, southern whitetop aster, and Pocosin flat-topped aster) is a North American perennial forb native to the eastern United States. It ranges from eastern Texas and southeastern Oklahoma to northern Florida north as far as New York State, though uncommon in the northern part of that range.Biota of North America Program 2014 county distribution map
Doellingeria sericocarpoides is a perennial up to 150 cm (5 feet) tall, spreading by means of underground rhizomes. It can sometimes produce as many as 200 small flower heads, each with 2-7 white ray florets and 4-20 yellow disc florets.Flora of North America, Southern tall flat-topped or southern whitetop aster. Doellingeria sericocarpoides Small
References
External links photo of herbarium specimen at Missouri Botanical Garden, collected in Arkansas, type specimen of Doellingeria sericocarpoides