Platanthera tescamnis

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Platanthera tescamnis
Platanthera tescamnis flowerspike close.jpg
Status TNC G3.svg
Vulnerable  (NatureServe) [1]
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Orchidaceae
Subfamily: Orchidoideae
Genus: Platanthera
Species:
P. tescamnis
Binomial name
Platanthera tescamnis
Synonyms [2]

Limnorchis tescamnis

Platanthera tescamnis, the intermountain bog orchid or yellow rein orchid, [3] is a species of orchid described in 2006. [4] The plant is well-known but had been misidentified. [5] It is native to the Great Basin and Colorado Plateau of the western United States (Colorado, Utah, Arizona, Nevada, California), where it grows in warmer, drier habitat than most related orchids. [2]

Contents

Platanthera tescamnis flowerspike Yellow rein-orchid.jpg
Platanthera tescamnis flowerspike

Platanthera tescamnis produces a slender, erect flowering stem which may exceed one meter (3 ft 3 in) in height. There are several leaves around the base of the stem, lance-shaped to oval and measuring up to 29 centimeters (11 in) long by 5 centimeters (2 in) wide. The inflorescence is a dense spike of many small yellow-green flowers. [4]

Taxonomy

Platanthera tescamnis was scientifically described and named in 2006 by Charles John Sheviak and William F. Jennings. It is classified in the genus Platanthera as part of the family Orchidaceae. It has one homotypic synonym from when Paul Martin Brown, Scott L. Stewart, and Roberto Gamarra Gamarra suggested it should be moved to Limnorchis in 2009. [2]

References

  1. ↑ NatureServe (3 October 2025). " Platanthera tescamnis". NatureServe Explorer. Arlington, Virginia. Retrieved 14 November 2025.
  2. 1 2 3 "Platanthera tescamnis Sheviak & W.F.Jenn". Plants of the World Online . Royal Botanic Gardens, Kew . Retrieved 14 November 2025.
  3. ↑ NRCS. "Platanthera tescamnis". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 7 October 2015.
  4. 1 2 Sheviak, C. J. and W. F. Jennings. (2006). A new Platanthera (Orchidaceae) from the Intermountain West. Rhodora 108:933 19-31.
  5. ↑ NYS Museum Scientist Reports Discovery of New Orchid Species. New York State Museum Press Release April 19, 2006.


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