Erigeron anchana, the Sierra Ancha fleabane, is a rare Arizona species of flowering plant in the family Asteraceae. It has been found only on cliff faces and in rocky areas in central Arizona. The name "anchana" refers to a mountain range called Sierra Ancha in Gila County, Arizona.

Erigeron anchana is a short perennial rarely more than 22 cm (9 inches) tall. The inflorescence generally consists of 1 - 3 flower heads, each head with a ring of 14–36 white ray florets surrounding a disc of yellow disc florets.

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