Sonchus oleraceus

A common weed in Las Cruces. Very similar to Sonchus asper.

A pseudanthium on the New Mexico State University campus in Las Cruces, 3/10/06.

Pseudanthiua near Science Hall on the NMSU campus, 15 Feb 2007.

Plant habit on the NMSU campus, 3/10/06. Plants are often more upright.

An immature rosette on the NMSU campus, 3/10/06.