#buckthorn.shrub  a shrub or shrubby tree of the genus Rhamnus; fruits are source of yellow dyes or pigments
  supertype:  #shrub__bush  a low woody perennial plant usually having several major branches
  subtype:  #cascara_buckthorn  #Carolina_buckthorn  #coffeeberry  #alder_buckthorn  #redberry
  member of:  #genus_Rhamnus
  part:  #buckthorn_berry__buckthornberry__yellow_berry  fruit of various buckthorns yielding dyes or pigments

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