WordNet sense 1 (orchid growing along streams or ponds of western North America having leafy stems and 1 greenish-brown and pinkish flower in the axil of each upper leaf):

stream orchid, Epipactis gigantea, giant helleborine

WordNet sense 2 (an obnoxious and foolish and loquacious talker):

babbler, chatterer, magpie, prater, spouter