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|Noun||1.||Epipactis gigantea - 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|
Epipactis, genus Epipactis - genus of hardy orchids with leafy-bracted racemes of greenish or purplish irregular flowers
helleborine - any of various orchids of the genus Epipactis