Rhamnus purshianus

Từ điển Oxford Learners Wordfinder Dictionary

noun

shrubby tree of the Pacific coast of the United States;
yields cascara sagrada
• Syn:
cascara buckthorn, bearberry, bearwood, chittamwood, chittimwood
• Hypernyms:
buckthorn
• Part Meronyms:
cascara, cascara sagrada, chittam bark, chittem bark