noun
: a primulaceous bog or marsh herb ( Naumburgia thyrsiflora ) of the north temperate zone that has small yellow flowers in heads on close racemes
noun
: a primulaceous bog or marsh herb ( Naumburgia thyrsiflora ) of the north temperate zone that has small yellow flowers in heads on close racemes
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012