Bienial or Biennial: How To spell?

The word Bienial is misspelled against Biennial, meaning "A plant that produces leaves and roots the first year and flowers and fruit the second."

--> Biennial has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings bie & ial which should not be misspelled with single 'N'
Wrong Spelling:  bie-n-ial 
Correct Spelling:  bie-nn-ial 
Find more wrongly spelled words of Biennial to spell it well.

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