Etymology: Tussilago: from
Plants: erect, perennial forb
Leaves: summer leaves heart or rounded-shaped
Flowers: head yellow, 1" wide
Conservation Status: Introduced - adventive
Flora of North America: Flora of North America Floristic Rating: Wetland Indicator = FACU Invasive And Exotic Species of North America: Descriptions, management issues, warnings, photos, etc. USDA Plants Database: Federal Distribution and detailed information including photos USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Purple Sage - Ethnobotanical Information: Detailed usage, preparation, and other helpful information Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"