hay-scented hays·cen·ted uncommon noun 1. fern of eastern North America with pale green fronds and an aroma like hay Synonymshay-scented fernscented fernboulder fernDennstaedtia punctilobula Related words Word family hay-scented fern Broader terms fern Parts Dennstaedtia WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.