stream orchid(n = noun.plant) chatterbox, epipactis gigantea, giant helleborine - 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;
is a kind of helleborine
is a member of epipactis, genus epipactis

alaska rein orchid, bee orchid, blue orchid, bog rein orchid, butterfly orchid, coastal rein orchid, common spotted orchid, dancing lady orchid, early purple orchid, early spider orchid, fen orchid, fly orchid, foxtail orchid, fragrant orchid, fringed orchid, frog orchid, funnel-crest rosebud orchid, greater butterfly orchid, gulf stream, helmet orchid, hooker's orchid, jet stream, jewel orchid, jumping orchid, lesser butterfly orchid, lizard orchid, marsh orchid, meteor stream, moth orchid, orange-blossom orchid, orchid, orchid cactus, orchid family, orchid tree, pansy orchid, phantom orchid, poor man's orchid, prairie orchid, prairie white-fringed orchid, purple fringeless orchid, purple-fringed orchid, ragged orchid, ragged-fringed orchid, rattlesnake orchid, rein orchid, rosebud orchid, round-leaved rein orchid, satyr orchid, short-spurred fragrant orchid, slipper orchid, snow orchid, snowy orchid, spider orchid, stream, stream clock, stream gold, stream line, stream of consciousness, stream wheel, swan orchid, tangle orchid, tidal stream, tidewater stream, tulip orchid, vanilla orchid, violent stream, water orchid, white fringed orchid, zebra orchid