noun
also cas·til·le·ia ˌkastəˈlē(y)ə
Usage: capitalized
Etymology: New Latin, irregular (influence of Spanish -eja, diminutive suffix) from Juan Castillo y López
: a large genus of root-parasitic herbs (family Scrophulariaceae) abundant in western No. America and characterized by irregular hooded flowers in dense spikes usually with brightly colored bracts — see indian paintbrush