| The Sowthistle abounds in the same milky juice as the succory, and has the same kind of fleshy root. |
| No insect biocontrol agents are presently available for perennial sowthistle in Washington. |
| Perennial sowthistle is common in cultivated areas, ditch banks, meadows, and neglected areas. |
| Also, the leaf margins of spiny sowthistle are much more spiny or prickly than those of annual sowthistle. |
| Young tortoises are fed mainly dandelions, nipplewort, sowthistle, clover and lettuce. |
| A German photographer bagged second place for his stunning image of a spiny sowthistle flower stem. |
