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Image of Ash Meadows Ladies'-Tresses
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Ash Meadows Ladies' Tresses

Spiranthes infernalis Sheviak

Comments

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Spiranthes infernalis is known only from Ash Meadows, Nye County, Nevada, and it is probably endemic. The description is based on correspondingly few specimens and may prove to be too restrictive.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 532, 544 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 18–40 cm. Roots few, strongly descending, tuberous, to 1.5 cm diam. Leaves persisting into anthesis, basal, often on proximal 1/2 of stem, ascending, linear to linear-lanceolate or oblanceolate, to 15 × 0.9 cm. Spike usually very tightly spiraled, rarely loosely spiraled, 3 flowers per cycle of spiral; rachis glabrous, commonly minutely and sparsely farinose. Flowers ascending, ochroleucous, yellowish white, and ochraceous (tinged yellowish brown), with basal 1/4 of sepals and petals and to 1/2 of lip green and fleshy, tubular; sepals connate at base, 4–6 mm; lateral sepals with apices spreading; petals lanceolate, apex spreading, obtuse; lip variably orange centrally, broadly or occasionally narrowly elliptic, 5–6 × 3.8–6.7 mm, often divided by ± evident constrictions into abruptly narrowed apical and basal parts narrower than middle, the apical part minutely but conspicuously puberulent adaxially; veins few to several, branches parallel to wide-spreading; viscidia linear to linear-elliptic; ovary mostly 2–4 mm. Seeds monoembryonic. 2n = 44.
license
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: 532, 544 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

Distribution

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Nev.
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copyright
Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 532, 544 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

Flowering/Fruiting

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Flowering Jun--Jul.
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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: 532, 544 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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Seasonally wet riparian meadows and spring runs; of conservation concern; 700m.
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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: 532, 544 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
partner site
eFloras

Spiranthes infernalis

provided by wikipedia EN

Spiranthes infernalis, common name Ash Meadows lady's tresses,[2] is a rare species of orchid known from only four locations in Nevada, all close to one another. The type locale is inside Ash Meadows National Wildlife Refuge, in Nye County approximately 90 miles (140 km) WNW of Las Vegas. The site is a seasonally wet meadow.[3][4][5]

The epithet infernalis means "of the underworld" or "of the nether regions", in reference to the extremely hot climate of the region.[3]

Description

Spiranthes infernalis is a terrestrial herb up to 40 cm (16 inches) tall. It has tuberous roots. Leaves are lanceolate, up to 15 cm (6 inches) long. The flowers are yellowish-white with an orange lip, borne in a tightly spiralled spike.[3][6]

References

  1. ^ "NatureServe Explorer". NatureServe Explorer Spiranthes infernalis. NatureServe. 2022. Retrieved 22 May 2022.
  2. ^ USDA, NRCS (n.d.). "Spiranthes infernalis". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 27 November 2015.
  3. ^ a b c Sheviak, C. J. 1989. A new Spiranthes (Orchidaceae) from Ash Meadows, Nevada. Rhodora 91: 225–234.
  4. ^ Flora of North America v 26 p 544.
  5. ^ Siegel, Carol. Native Orchids of Nevada. Arboretum at the University of Nevada, Las Vegas.
  6. ^ Calphotos, James Andre, University of California, Berkeley
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Spiranthes infernalis: Brief Summary

provided by wikipedia EN

Spiranthes infernalis, common name Ash Meadows lady's tresses, is a rare species of orchid known from only four locations in Nevada, all close to one another. The type locale is inside Ash Meadows National Wildlife Refuge, in Nye County approximately 90 miles (140 km) WNW of Las Vegas. The site is a seasonally wet meadow.

The epithet infernalis means "of the underworld" or "of the nether regions", in reference to the extremely hot climate of the region.

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