Platanthera


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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Platanthera

 

(butterfly orchid), a genus of perennial plants of the family Orchidaceae. They are grasses with paired underground tubers, the larger of which is withered, and the smaller juicy. The stem is single with one or two contiguous leaves near the base. The flowers, which are in a loose inflorescence, are white or greenish white and have an entire lip and a long spur. There are more than 50 species (according to other sources, up to 200), distributed in the northern hemisphere. Eight species are found in the USSR. The lesser butterfly orchid (Platanthera bifolia), which has white flowers that are particularly fragrant at night, grows in the southern forest and foreststeppe zones of the European USSR and in forest meadows and thickets in the southern part of Western Siberia. Like the tubers of other orchids, the tubers of butterfly orchids are called salep and are used medicinally.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Platanthera praeclara usually occurs in mesic swales or draws in tallgrass prairie; ideal habitats are subirrigated.
In addition, other six species (Bletilla striata, Galearis cyclochila, Neottianthe cucullata, Pelatantheria scolopendrifolius, Platanthera hologlottis, and Pogonia minor, Table 1) also harbor extremely low levels of within-population genetic variation.
Data gathered subsequently in the laboratory using several analytical techniques all pointed to the discovery of a new species, and suggested that the species - named Platanthera azorica.
A multivariate approach to post-pollination changes in the floral scent of Platanthera bifolia (Orchidaceae).
Crossing effects on seed viability and experimental germination of the federal threatened Platanthera leucophoea (orchidaceae).
Blooms: June and July Northern green orchid Platanthera aquilonis
On Java, for instance, Platanthera suzane has been used as a remedy for skin ailments (Suryowinoto 1982).
Bayesian approaches for the analysis of populatioa genetic structure: an example from Platanthera leucophaea (Orchidaceae).
The Manitoba Orchid Society, as part of its mandate, has funded research into the survival and conservation of the Western Prairie Fringed-Orchid (Platanthera praeclara) and the Small White Lady's Slipper (Cypripedium candidum).
84 YEARS THAT HAD ELAPSED between the discovery of the Yosemite bog orchid (Platanthera yosemitensis)by George Henry Grinnell and its official distinction as a separate species in July.
The Fish and Wildlife Service listed the eastern prairie fringed orchid (Platanthera leucophaea) as a threatened species in 1989.