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Southern Lady's Tresses

Spiranthes torta (Thunb.) Garay & H. R. Sweet

Comments

provided by eFloras
Spiranthes torta is restricted to the rocky pinelands in southern Florida and is easily recognized by its nodding flowers and downward-pointing lateral sepals. It could only be confused with S. tuberosa, typically a much shorter plant with pure white flowers.

Spiranthes amesiana Schlechter is often included as a synonym of S. torta; recent studies indicate that it may be a distinct species. It is said to differ from S. torta in its denser inflorescence, spade-shaped lip with a crenulate-ciliate margin, and densely pubescent basal calli. Within the area covered by the flora, it is restricted to extreme southern Florida; it also has been collected in the Bahamas and Nicaragua.

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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 532, 533, 537 in eFloras.org, Missouri Botanical Garden. Accessed Nov 12, 2008.
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Description

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Plants 7–50 cm. Roots few, spreading to descending, slender to somewhat tuberous, mostly to 1 cm diam. Leaves fugacious, 2 or 3, basal, reduced to bracts on stem, ascending, narrowly oblanceolate, 5–20 × 0.5 cm. Spikes secund to loosely spiraled, 8–10 flowers per cycle of spiral; rachis sparsely pubescent, some trichomes capitate, glands obviously stalked. Flowers nodding, white; sepals elliptic, 5 × 1 mm; lateral sepals distinct to base, curving slightly downward, oblique; petals green at base, oblique, elliptic, 5 × 1.5 mm; lip green with white apex, ovate, 4 × 2 mm; veins parallel; basal calli very short, stout, to 0.3 mm; viscidium linear-lanceolate; ovary mostly 3 mm. Seeds monoembryonic.
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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, 533, 537 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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Fla.; West Indies (Bahamas); Bermuda; Central America.
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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, 533, 537 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 May--Jul.
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 532, 533, 537 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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Habitat

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Dry pinelands; 0--10m.
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cc-by-nc-sa-3.0
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Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
bibliographic citation
Flora of North America Vol. 26: 532, 533, 537 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

Synonym

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Ophrys torta Thunberg, Mus. Nat. Acad. Upsal. 9: 136. 1791; Ibidium tortile (Swartz) House; Spiranthes tortilis (Swartz) Richard
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, 533, 537 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 torta

provided by wikipedia EN

Spiranthes torta, the Southern ladies’ tresses, is a terrestrial orchid native to Florida, Mexico, Central America, the Caribbean Islands and Bermuda.[1]

Description

Spiranthes torta plants are 7-50 cm tall and have 2-3 basal leaves which wither before they bloom. There is also several leaves along the stem which are reduced to bracts. Flowers are arranged in a spiral along the stem. They are white, with a green inside of the labellum. Bloom time is May to June.[2]

Distribution and habitat

Spiranthes torta can be found in the Bahamas, Belize, Bermuda, Costa Rica, Cuba, the Dominican Republic, Florida, French Guiana, Guatemala, Haiti, Honduras, Jamaica, the Leeward Islands, the Gulf of Mexico, southeastern Mexico, Nicaragua, Puerto Rico, Trinidad-Tobago and the Windward Islands.[3] It prefers dry habitat, usually growing in pine forest.[2]

Taxonomy

Spiranthes torta was first described by Carl Peter Thunberg in 1791 (as Ophrys torta).[4]

References

  1. ^ "Spiranthes torta". North American Orchid Conservation Center (NAOOC), Smithsonian Environmental Research Center. 2018. Retrieved 16 February 2022.
  2. ^ a b Flora of North America Editorial Committee (ed.). "Spiranthes torta". 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.
  3. ^ "Spiranthes torta". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 17 February 2022.
  4. ^ "Spiranthes torta". World Checklist of Selected Plant Families (WCSP). Royal Botanic Gardens, Kew.

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Spiranthes torta: Brief Summary

provided by wikipedia EN

Spiranthes torta, the Southern ladies’ tresses, is a terrestrial orchid native to Florida, Mexico, Central America, the Caribbean Islands and Bermuda.

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