Sorrel tree Meaning, Definition & Usage

  1. noun deciduous shrubby tree of eastern North America having deeply fissured bark and sprays of small fragrant white flowers and sour-tasting leaves
    sourwood; Oxydendrum arboreum; titi.
  2. noun Australian tree with acid foliage
    Hibiscus heterophyllus.

WordNet

Definitions
  1. (Bot.), a small ericaceous tree (Oxydendrum arboreum) whose leaves resemble those of the peach and have a sour taste. It is common along the Alleghanies. Called also sourwood.

Webster 1913