Symphyotrichum pratense
Symphyotrichum pratense (formerly Aster pratensis) is a species of flowering plant in the family Asteraceae native to the southeastern United States. Commonly known as barrens silky aster, it is a perennial, herbaceous plant that may reach  tall. Its flowers have rose-purple ray florets and pink then purple disk florets.

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pratense
Flora of the Southeastern United States
Plants described in 1817
Taxa named by Constantine Samuel Rafinesque