Symphyotrichum anomalum (formerly Aster anomalus) is a species of flowering plant in the family Asteraceae native to Arkansas, Illinois, Kansas, Missouri, and Oklahoma. With the common name of manyray aster, it is a perennial, herbaceous plant that may reach 20 to 120 centimeters (3⁄4 to 4 feet) tall. Its flowers, which are attractive to butterflies, have lavender or blue to purple, seldom white, ray florets and cream or light yellow, then pinkish-purple disk florets.

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