Northwestern twayblade
Neottia banksiana
''Neottia banksiana'' is a species of orchid known by the common name northwestern twayblade. It was formerly placed in the genus ''Listera'', but molecular phylogenetic studies have shown that ''Neottia nidus-avis'', the bird's-nest orchid, evolved within the same group, and all species of ''Listera'' have been moved to ''Neottia''. Older scientific names include ''Listera banksiana'' and ''Listera caurina''.
''Neottia banksiana'' is native to northwestern North America from Alaska through the Pacific Northwest to the Grand Teton Range of Wyoming and to Mendocino County, California. It can be found in moist, dim habitat, such as mountain forest understory. It is a rhizomatous perennial herb growing erect 10 to 30 centimetres tall. It has one pair of green oval leaves each up to 7 centimetres long near the base of the stem. The inflorescence is a small raceme of green or yellow-green flowers. Each has usually 3 lance-shaped sepals, 2 similar petals, and one petal known as the lip, which is longer and rounded at the end.
''Neottia banksiana'' is native to northwestern North America from Alaska through the Pacific Northwest to the Grand Teton Range of Wyoming and to Mendocino County, California. It can be found in moist, dim habitat, such as mountain forest understory. It is a rhizomatous perennial herb growing erect 10 to 30 centimetres tall. It has one pair of green oval leaves each up to 7 centimetres long near the base of the stem. The inflorescence is a small raceme of green or yellow-green flowers. Each has usually 3 lance-shaped sepals, 2 similar petals, and one petal known as the lip, which is longer and rounded at the end.