Neottia convallarioides | |
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Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Angiosperms |
Clade: | Monocots |
Order: | Asparagales |
Family: | Orchidaceae |
Subfamily: | Epidendroideae |
Genus: | Neottia |
Species: | N. convallarioides
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Binomial name | |
Neottia convallarioides | |
Synonyms [1] | |
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Neottia convallarioides is a species of orchid known by the common names broad-lipped twayblade and broad-leaved 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, [2] and all species of Listera have been moved to Neottia. [3]
It is a rhizomatous perennial herb growing 10 to 35 centimeters tall. It has one pair of green oval leaves 2 to 7 cm long near the base of the stem. The inflorescence is a small raceme of green or yellow-green flowers. Each has 3 reflexed lance-shaped sepals, 2 similar petals, and a lobed, wedge-shaped labellum that measures 9 to 13 mm long. The plant sometimes forms large colonies, creating a groundcover. [4] It is known to hybridize with Neottia auriculata. [4]
Neottia convallarioides can be found in moist habitats such as woods, forests, swamps, and streambanks. It is native to much of Canada and in parts of the United States ( Alaska, the Great Lakes Region, New England, and the mountains of the West: Rockies, Cascades, Sierra Nevada, etc.). It also reportedly occurs in St. Pierre & Miquelon and on the Komandor Islands in the Bering Sea, part of the Russian Far East. [1] [5] [6]