Mexican creeping zinnia, Sanvitalia procumbens

Creeping zinnia is valued by gardeners because it buries its dead. By that they mean new flower heads will quickly grow over the old. The heads may have dark centers, and those are more often called creeping sunflower. This Latin American native has now been reported as spread to the wild in CA, IL, MD, TX, and VT. Only in Texas is it likely to be an established part of our flora. Cultivated, Lenawee Co MI, 5/6/13. Aster family, Asteraceae.