The word Oilsed is misspelled against Oilseed, a noun meaning "A cruciferous herb (Camelina sativa)."
-->
Oilseed has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings Oils & d which should not be misspelled with single 'E'
Wrong Spelling:  Oils-e-d 
Correct Spelling:  Oils-ee-d 
Find more wrongly spelled words of Oilseed to spell it well.