Frostweed - Verbesina virginica

Sunflower Family: Compositae

Sunflower Tribe: Heliantheae.

Leaves: Large, egg-shaped, and wing-like margins on both the leaf petiole and stem.

Flowers: Black, pepper-like stamens in the central disk flower.

Sources

Niehaus. Southwestern & Texas wildflowers.
Identifier: Mike Quinn
Photos: S. Peregrine Johnson