Plants of the San Marcos Foothills Preserve

Sonchus asper (Spiny Sowthistle)

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 asper (Spiny Sowthistle). NON-NATIVE. Pictured in spring.

Sonchus asper (Spiny Sowthistle). NON-NATIVE. Pictured in spring.

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