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Platanthera bifolia (L.) Rich. - syn.Habenaria bifolia (L.) R. Br.; Orchis bifolia L. - Orchidaceae
lesser butterfly-orchid, Zweiblättrige Waldhyazinthe
Orchid, up to 40cm tall, native to Europe, West Asia and North Africa; stem erect, 2-leaved; leaves basal, subopposite, spatulate-elliptic, oblong, or elliptic; flowers fragrant, white, greenish white, or green.
http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=220010576
„Variation in scent chemistry of both Platanthera bifolia and P. chlorantha was considerable: different scent chemotypes were found among individuals as well as populations. Mainly linalool, lilac aldehydes and alcohols, geraniol, and methyl benzoate distinguished the chemotypes.“
[Fragrance chemotypes of Platanthera (Orchidaceae)‐the result of adaptation to pollinating moths?., Tollsten, L., Bergström, L. G., Nordic Journal of Botany, Vol.13(6), 1993, 607-613]
Electrophysiologically active compounds from P. bifolia flowers are benzyl benzoate, benzyl salicylate, cinnamyl alcohol, lilac aldehydes, methyl benzoate and methyl salicylate.
[Volatiles from flowers of Platanthera bifolia (Orchidaceae) attractive to the silver Y moth, Autographa gamma (Lepidoptera: Noctuidae)., Plepys, D., Ibarra, F., Löfstedt, C., Oikos, Vol.99(1), 2002, 69-74]
Platanthera bifolia, Lindman, C.A.M., Bilder ur Nordens Flora, vol.2 t.406 (1922-1926)
http://www.plantillustrations.org/species.php?id_species=805291
Platanthera bifolia
© Rolf Marschner (2006),
www.botanische-spaziergaenge.at