Spiny Sow Thistle (Sonchus asper)

 
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Description:

This plan spreads by seed that form in puffballs and has prikly hairs on a spiny sptem. This plant has green or green and red leaves and will get a yellow flower. Whenpolinated the flower turns into a "puffball" seedhead and the seeds are scattered by the wind. Be sure to remove these before they go to seed, otherwise this plant will be hard to control. The seeds will carry far in the wind, so you are likely to aquire new plants from seeds blown in from surrounding areas.

Control:

These plants have strong and deep roots and weak stems which break easily, meaing that for an established plant it is unlikely you will be able to pull it by hand without it growing back from the root that remains. For those that look established I have been spraying the leaves with Roundup. For those that look less established, I have been pulling by hand.
Halloween in Ladera Heights
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