from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. A European annual plant (Lapsana communis) naturalized in eastern North America, having a milky juice and small yellow flower heads.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. A flowering plant, Lapsana communis, that yields a milky juice

from the GNU version of the Collaborative International Dictionary of English

  • n. A yellow-flowered composite herb (Lampsana communis), formerly used as an external application to the nipples of women; -- called also dock-cress.

from The Century Dictionary and Cyclopedia

  • n. A plant, Lapsana communis: so called from its remedial use. See Lapsana and cress.


From its former use in folk medicine to treat breast tumors.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • In rougher, gloriously weedy places, I don't remember watching as many gold-banded hoverflies fiddling with the nipplewort.

    Country diary: Wenlock Edge


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  • Did you milk it?

    May 9, 2011

  • This plant has milky juice.

    May 9, 2011

  • A yellow-on-yellow composite. I spotted this in Fitzroy Park in Highgate and subsequently identified it by its differing-shaped leaves as they go up the stalk.

    July 3, 2008