Erigeron purpuratus is a North American species of flowering plant in the daisy family known by the common name purple fleabane. The species grows in Alaska (part of the United States) and Yukon (part of Canada).Erigeron purpuratus is a perennial herb up to 14 centimeters (5.6 inches) tall, producing a large branching caudex that serves to spread the plant into clonal clumps. The plant generally produces only 1 flower head per stem, the bracts forming the sides of the head appearing purple. Each ...