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Species: 

Sonchus asper

Common Name(s): 

spiny sowthistle, prickly sowthistle, perennial sowthistle

Habitats Impacted: 

forest/woodland, disturbed/waste areas, rangeland, urban/garden, riparian/aquatic, cropland/pastureland

Regions likely to be Impacted: 

PH, NE, NW, SE, SW

Present in Neighboring States?

AR, CO, KS, LA, MO, NM, TX

Currently known from Oklahoma?

Yes

Sonchus asper

Joseph M. DiTomaso, University of California - Davis, Bugwood.org

More Images:

https://www.invasive.org/browse/subthumb.cfm?sub=6434

What you should know!

Can form monocultures, impacting native species. Prolific seeder. Easily dispersed by animals. A seed contaminant.

Management information

https://www.invasive.org/control/

Dandelion Fields
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