Heliomeris longifolia is a North American species of flowering plants in the family Asteraceae called the longleaf false goldeneye. It is widespread across much of Mexico from Chihuahua and Sonora south to Chiapas, and found also in the southwestern United States from Nevada to western Texas.Biota of North America Program 2014 county distribution mapStrother, J. L. 1999. Compositae–Heliantheae s. l. 5: 1–232. In D.E. Breedlove (ed.) Flora of Chiapas. California Academy of Sciences, San FranciscoSEINet, Southwestern Biodiversity, Arizona chapter photos, description, distribution map
Heliomeris longifolia is an annual herb up to tall, with a large taproot. Leaves are up to long, with hairs along the edges. One plant can produce 25 or more yellow flower heads, each head with 12-14 ray flowers surrounding 50 or more tiny disc flowers.Flora of North America, Heliomeris longifolia (B. L. Robinson & Greenman) Cockerell, 1918. Longleaf false goldeneye
Varieties Heliomeris longifolia var. annua (M.E.Jones) W.F.Yates Heliomeris longifolia var. longifolia
References
External links Photo of herbarium specimen at Missouri Botanical Garden, collected in Mexico in 1879, isotype of Heliomeris longifolia Czech Botany, hvězdnicovité in Czech with photos