noun
: any of several ferns (as members of the genera Notholaena and Pityrogramma ) having the lower surfaces of the fronds covered with a golden yellow spore mass or group of sori
noun
: any of several ferns (as members of the genera Notholaena and Pityrogramma ) having the lower surfaces of the fronds covered with a golden yellow spore mass or group of sori
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012