Avenacoeus or Avenaceous: How To spell?

The word Avenacoeus is misspelled against Avenaceous, an adjective meaning "Belonging to, or resembling, oats or the oat grasses."

Word contains consecutive vowels 'EO' in between alphabets avenac & us is misspelled as 'OE'
Wrong Spelling:  avenac-oe-us 
Correct Spelling:  avenac-eo-us 
Check more misspelled words of Avenaceous to spell it correct.