Plants of the San Marcos Foothills Preserve

Sonchus oleraceus (Common Sow-thistle)

Uncommon, native, perennial shrub found in coastal sage-scrub plant community, but also on the edges of oak woodland. Flowers are yellow (aging red). Blooms in spring. Previous scientific name: Lotus scoparius.

Sonchus oleraceus (Common Sow-thistle). NON-NATIVE. Pictured in spring.

Sonchus oleraceus (Common Sow-thistle). NON-NATIVE. Pictured in spring. This photo shows the pointed lobes on the lower leaves compared to the rounded lobes on Sonchus asper.

Sonchus oleraceus (Common Sow-thistle). NON-NATIVE. Pictured in spring.

Sonchus oleraceus (Common Sow-thistle). NON-NATIVE. Pictured in winter.