Simsia lagasceiformis

A principally Mexican species entering the United States from southeastern Arizona to western Texas. Similar to Viguiera.

Pseudanthia, roadside between Buenaventura and Zaragoza, Chihuahua, Mexico, 9 Sep 2009. Photographed on a trip with the American Penstemon Society.

Side view of pseudanthia on the roadside between Buenaventura and Zaragoza, 9 Sep 2009.

A split pseudanthium on the roadside between Buenaventura and Zaragoza, 9 Sep 2009.

Flowering stems on the roadside between Buenaventura and Zaragoza, 9 Sep 2009.

Cauline leaf & developing pseudanthium on the roadside between Buenaventura and Zaragoza, 9 Sep 2009.