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Image of Platanthera convallariifolia (Fisch. ex Lindl.) Lindl.
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Platanthera convallariifolia (Fisch. ex Lindl.) Lindl.

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Platanthera convallariifolia is commonly reported from the Aleutians and adjacent coastal Alaska based on short, very broad-leaved plants with rather large flowers in dense, thick inflorescences. Those plants, however, apparently represent robust, maritime phenotypes of P. huronensis or in some cases P. stricta or P. dilatata comparable to those seen in Piperia elegans and Spiranthes romanzoffiana. In fact, typical Asiatic Platanthera convallariifolia is a slender-leaved plant entirely comparable in habit to P. huronensis. The two species are very similar, and they share a tetraploid chromosome number. Typical Asiatic P. convallariifolia is characterized by a linear lip and clavate spur about 2/3 to nearly the length of the lip. The lip occasionally varies to slightly lanceolate and the spur to somewhat saccate. The column appears somewhat broader than in P. huronensis, and viscidia also are apparently rather broad. A few specimens from the Aleutians and Alaskan peninsula exhibit these floral characteristics. Vegetatively, however, some Alaskan material is distinctive in the position and orientation of the leaves. In floral and vegetative characters, Alaskan plants furthermore intergrade with P. huronensis. Whether Alaskan plants are truly referable to P. convallariifolia is uncertain, and the status of the Asiatic species also needs study. Both P. convallariifolia and the Alaskan plants here referred to it appear to combine features of P. huronensis and P. stricta. Platanthera convallariifolia may have arisen through hybridization of these two species, or of P. stricta and P. dilatata, thus accounting for the difficulty in identification. The description presented here is based on few Alaskan plants and is apt to be too restrictive; therefore the poor understanding of the plant makes the present delimitation and distinctions from P. huronensis rather arbitrary.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 554, 558, 559, 561 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Flora of North America @ eFloras.org
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Description

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Plants 15–27 cm. Leaves few–several, ascending to rather wide spreading, scattered along stem or commonly loosely clustered on distal portion, gradually reduced to bracts distally; blade elliptic-lanceolate to elliptic-oblong, 4.5–12 × 0.7–2.5 cm. Spikes moderately dense. Flowers resupinate, not showy, sometimes conspicuous, whitish green, perhaps more yellowish on lip; lateral sepals spreading; petals ovate-falcate, margins entire; lip descending, linear to lance-linear, without basal thickening, 4–9 × 1–2 mm, margins entire; spur slenderly to markedly clavate, rarely more slender, 4–8 mm, apex obtuse; rostellum lobes widely divergent, directed downward, slightly angular, very small, obscure; pollinaria straight; pollinia remaining enclosed in anther sacs but apparently often fragmenting; viscidia oblong to oblong-spatulate or elliptic-suborbiculate; ovary slender to stout, mostly 6–10 mm.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 554, 558, 559, 561 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
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eFloras

Distribution

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Alaska; Asia (Kamchatka to Hokkaido).
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 554, 558, 559, 561 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
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eFloras.org
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eFloras

Flowering/Fruiting

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Flowering late Jun--early Aug.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 554, 558, 559, 561 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
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eFloras

Habitat

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Wet meadows, tundra, marshes, fens, stream banks, shores, seeping slopes; 0--400m.
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cc-by-nc-sa-3.0
copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 554, 558, 559, 561 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
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eFloras

Synonym

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Limnorchis convallariifolius (Fischer ex Lindley) Rydberg
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 554, 558, 559, 561 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
source
Flora of North America @ eFloras.org
editor
Flora of North America Editorial Committee
project
eFloras.org
original
visit source
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eFloras

Platanthera convallariifolia

provided by wikipedia EN

Platanthera convallariifolia, the bog orchid, is a species of orchid native to the Aleutian Islands, far east Russia and northern Japan. It grows in wetlands such as fens and marshes.[1][2]

References

  1. ^ Flora of North America Editorial Committee (ed.). "Platanthera convallariifolia". Flora of North America North of Mexico (FNA). New York and Oxford – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  2. ^ "Platanthera convallariifolia". Go Orchids. North American Orchid Conservation Center. Retrieved 17 January 2022.

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Platanthera convallariifolia: Brief Summary

provided by wikipedia EN

Platanthera convallariifolia, the bog orchid, is a species of orchid native to the Aleutian Islands, far east Russia and northern Japan. It grows in wetlands such as fens and marshes.

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