giant helleborine(n = noun.plant) chatterbox, epipactis gigantea, stream orchid - 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

epipactis helleborine, gas giant, giant, giant anteater, giant armadillo, giant bamboo, giant buttercup, giant cane, giant chinkapin, giant clam, giant cockroach, giant conch, giant coreopsis, giant crab, giant eland, giant fern, giant fir, giant foxtail, giant fulmar, giant garlic, giant granadilla, giant hornet, giant hyssop, giant kangaroo, giant lizard, giant moa, giant northwest shipworm, giant panda, giant petrel, giant pigfish, giant potato creeper, giant puffball, giant red paintbrush, giant reed, giant ryegrass, giant salamander, giant scallop, giant schnauzer, giant scrambling fern, giant sequoia, giant silkworm, giant silkworm moth, giant squid, giant star, giant star grass, giant stock bean, giant sunflower, giant taro, giant timber bamboo, giant tortoise, giant water bug, giant willowherb, helleborine, little giant, pacific giant salamander, red giant, red giant star, red helleborine, yellow giant hyssop