According to Webster's Third New International Dictionary
Deadheart (noun) : a deformed stunted plant of certain crop grasses (as maize and sugarcane) caused by borer attack on the region immediately behind the growing bud and characterized by bushy blanched distorted growth beyond the damaged area
Deadheart (noun) : a deformed stunted plant of certain crop grasses (as maize and sugarcane) caused by borer attack on the region immediately behind the growing bud and characterized by bushy blanched distorted growth beyond the damaged area