pileate
adjective
pi·le·ate
ˈpīlēə̇t,
ˈpil-,
-ēˌāt
variants or pileated
-ēˌātə̇d 
: having a pileus
specifically : having a crest covering the pileum
Word History
Etymology
Latin pilleatus, pileatus, from pilleus, pileus felt cap + -atus -ate (hair)
First Known Use
circa 1728, in the meaning defined above