Prickly Sow Thistle *
Sonchus asper

Family: Asteraceae(ray) (SUNFLOWER).
Generic common name: SOW-THISTLE.

Location: Circle X Ranch: New Backbone Trail, disturbed trailside, April 2005.

Characteristics: non-Native, Yellow, Medium, Large, Clusters, Solitary, Simple, Herbaceous, Annual, Winter, Early Spring, Late Spring, Summer, Fall.