Definition of ocrea in US English:


(also ochrea)

nounPlural ocreas

  • A dry sheath around a stem formed by the cohesion of two or more stipules, characteristic of the dock family.

    • ‘The stipules take the form of a protective organ, the ochrea, which at first totally covers the shoot bud, and then remains behind as a dry collar.’
    • ‘In this family, the ochrea completely encircles the stem.’
    • ‘The plant has the characteristic ochrea of the buckwheat family at the junction of the petiole and stem.’
    • ‘The ochrea in this species are ciliate (with a fringe of hairs) along their margin.’
    covering, cover, case, casing, envelope, sleeve, wrapper
    View synonyms


Mid 19th century: from Latin, literally ‘protective legging’.