A dry sheath round a stem formed by the cohesion of two or more stipules, characteristic of the dock family.
covering, cover, case, casing, envelope, sleeve, wrapperView synonyms
- ‘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.’
Mid 19th century: from Latin, literally protective legging.