Tagetes subulata

A species occurring in northern Mexico but not entering the United States. My identification is not completely certain.

Pseudanthia along Chihuahua Hwy 11 south of La Concha Microundas, Chihuahua, Mexico, 9 Sep 2009. Photographed on a trip with the American Penstemon Society.

Closer view of a pseudanthium along CH Hwy 11 south of La Concha Microundas, 9 Sep 2009.

A halved pseudanthium along CH Hwy 11 south of La Concha Microundas, 9 Sep 2009.

A cauline leaf along CH Hwy 11 south of La Concha Microundas, 9 Sep 2009.