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Orchid Species: Spiranthes weirii

Kew currently accepted name is Pelexia laxa

Spiranthes weirii is an orchid species identified by Rchb.f. in 1870. Culture information and photos for this orchid are commonly detailed under the currently accepted name of Pelexia laxa.
Genus
Spiranthes (Spir.)
Grex
weirii
Parents
Species
Author
Rchb.f.
Year
1870
ORIGIN: Found in Mexico, Guatemala, Belize, Nicaragua, Costa Rica, Colombia, Venezuela, Surinam, Ecuador, Peru, Bolivia, Brazil and Argentina in rainforests at elevations of 200 to 2100 meters.

DESCRIPTION: Medium to large sized, hot to cool growing terrestrial with fleshy, fasciculate roots giving rise to a few basal, somewhat thinly, elongate petiolate, dark green mottled white leaves and blooms in the summer on an erect, reddish, pubescent, many flowered inflorescence enveloped by various acuminate, pubescent bracts. SEE ALSO - Pelexia maculata which is often cited as a synonym of P laxa but it warrants separation, as it differs mostly in the broadly elliptic leaves, the oblanceolate lateral sepals and the more pronouned helmut formed by the dorsal sepal and the connivent petals.

FLOWER SIZE: 0.4 inches [1 cm] -- information provided by Jay Pfahl, author of the Internet Orchid Species Encyclopedia (IOSPE).
Other Names
Genus Name Genus Grex Name Year Author
Add+ Pelexia Pel laxa 1840 (Poepp. & Endl.) Lindl.
Add+ Pelexia Pel curvicalcarata (C.Schweinf.) Garay in ?.
Add+ Pelexia Pel lindmaniana 1920 (Kraenzl.) Schltr.
Add+ Pelexia Pel longipetiolata 1918 (Rchb.f.) Schltr.
Add+ Pelexia Pel maculata 1893 Rolfe
Add+ Pelexia Pel weirii 1920 (Rchb.f.) Schltr.
Add+ Spiranthes Spir curvicalcarata 1941 C.Schweinf.
Add+ Spiranthes Spir longipetiolata 1866 Rchb.f.
Add+ Spiranthes Spir maculata 1941 (Rolfe) C.Schweinf.
Add+ Stenorrhynchos Strs laxum 1836 Poepp. & Endl.
Add+ Stenorrhynchos Strs lindmanianum 1911 Kraenzl.
Add+ Stenorrhynchos Strs weirii 1895 (Rchb.f.) Cogn. in C.F.P.von Martius & auct. suc. (eds.)
Add+ Spiranthes Spir laxa 1941 (Poepp. & Endl.) C.Schweinf.
Add+ Pelexia Pel longepetiolata 1918 (Rchb.f.) Schltr.
Add+ Spiranthes Spir longepetiolata 1866 Rchb.f.
Add+ Gyrostachys Gyrostachys longepetiolata 1891 (Rchb.f.) Kuntze
Add+ Gyrostachys Gyrostachys longipetiolata 1891 (Rchb.f.) Kuntze
Most awarded/recent cultivars: Pel. laxa 'Orquivalle' (2002) Pel. maculata 'Aurora' (1998) Pel. maculata 'MAJ' (1978)
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