fleawort

/ˈfliːwɜːrt/
noun
  1. A plant of the plantain family, especially Plantago psyllium, whose seeds are used as a mild laxative.
    • The herbalist recommended fleawort to help with digestion.
    • Some gardeners grow fleawort for its medicinal properties.
    • Fleawort seeds swell into a gel when mixed with water.
Synonyms
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