Senecio vulgaris
A cosmopolitan weed, common on bare ground in cultivated plantings in Las Cruces. At NMSU, it flourishes in early spring, before the grounds crews begin roaming the campus with Roundup.
Plant habit near Science Hall on the NMSU campus, 15 Feb 2007.
Pseudanthia near Science Hall, 15 Feb 2007.
A cauline leaf near Science Hall, 15 Feb 2007.