Rheenberry or Rheinberry: How To spell?

The word Rheenberry is misspelled against Rheinberry, a noun meaning "One of the berries or drupes of the European buckthorn; also, the buckthorn itself."

Word contains consecutive vowels 'EI' in between alphabets rh & nberry is misspelled as 'EE'
Wrong Spelling:  rh-ee-nberry 
Correct Spelling:  rh-ei-nberry 
Explore spell check of Rheinberry to spell without errors.