Helenium aptera is a North American perennial plant in the Sunflower Family. It has been found only in the State of Durango in northwestern Mexico. Turner, B. L. 2013. The comps of Mexico. A systematic account of the family Asteraceae (chapter 11: tribe Helenieae). Phytologia Memoirs 16: 1–100Helenium aptera is an perennial herb up to 100 cm (40 inches) tall with thick rootstocks producing only one stem with a single flower head.