Cuckoflower or Cuckooflower: How To spell?
The word Cuckoflower is misspelled against Cuckooflower, a noun meaning "A species of Cardamine (C. pratensis), or lady's smock. Its leaves are used in salads. Also, the ragged robin (Lychnis Flos-cuculi)."
Cuckooflower has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings cuck & flower which should not be misspelled with single 'O'
Wrong Spelling:  cuck-o-flower  Correct Spelling:  cuck-oo-flower 
Check more misspelled words of Cuckooflower to spell it correct.