Daisy family (Asteraceae) ⁴

Summary ⁵

Sonchus asper, the prickly sow-thistle, rough milk thistle, spiny sowthistle, sharp-fringed sow thistle, or spiny-leaved sow thistle, is a widespread plant in the dandelion tribe within the daisy family.

Learn more ⁴

CABI Compendium.
Midwest Invasive Species Information Network.

Similar species ⁴

Leaves of Perennial sowthistle (Sonchus arvensis) and Common sowthistle (Sonchus oleraceus) have small serrations instead of prickles. Leaf shape also varies by species.

Sources and Credits

1. (c) tomfeild, some rights reserved (CC BY), uploaded by tomfeild, https://www.inaturalist.org/observations/177345516
2. (c) tomfeild, some rights reserved (CC BY), uploaded by tomfeild, https://www.inaturalist.org/observations/177345024
3. (c) Elena Kasandina, some rights reserved (CC BY), uploaded by Elena Kasandina, https://www.inaturalist.org/observations/176923202
4. (c) Isaac Winkler, some rights reserved (CC BY-SA)
5. Adapted by Isaac Winkler from a work by (c) Wikipedia, some rights reserved (CC BY-SA), https://en.wikipedia.org/wiki/Sonchus_asper

More Info

• iNat taxon page
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