Summary ⁴

Lactuca serriola, also called prickly lettuce, milk thistle (not to be confused with Silybum marianum, also called milk thistle) compass plant, and scarole, is an annual or biennial plant in the dandelion tribe within the daisy family. It has a slightly fetid odor and is commonly considered a weed of orchards, roadsides and field crops. It is the closest wild relative of cultivated lettuce (Lactuca sativa L.).

Sources and Credits

1. (c) dirstine, all rights reserved, uploaded by dirstine
2. (c) George F Mayfield, some rights reserved (CC BY-SA), http://www.flickr.com/photos/33397993@N05/3364663363
3. (c) Jim Frisinger, some rights reserved (CC BY-NC), uploaded by Jim Frisinger
4. (c) Wikipedia, some rights reserved (CC BY-SA), http://en.wikipedia.org/wiki/Lactuca_serriola

More Info

• iNat taxon page
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