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Gymnadenia odoratissima (L.) Rich. - Orchidaceae
short spurred fragrant orchid , scented gymnadenia, Wohlriechende Händelwurz, Duft-Händelwurz
Perennial herb, up to 30cm high, native to Central Europe; leaves lanceolate; flowers white to purplpe, fragrant.
„The fragrant orchid is characterized by intense vanilla-like scented flowers.“
http://de.wikipedia.org/wiki/Wohlriechende_H%C3%A4ndelwurz
 benzaldehyde (cherry-like) |  phenylacetaldehyde (honey-like) |  benzyl acetate (sweet floral) |  phenylethyl acetate (floral rose) |
„In G. odoratissima, 44 volatiles were identified, of which seven were physiologically active (benzaldehyde, phenylacetaldehyde, benzyl acetate, 1-phenyl-2,3-butandione, phenylethyl acetate, eugenol, and one unknown compound). In field bioassays using a mixture of the active G. odoratissima compounds and phenylacetaldehyde alone we caught a total of 25 moths, some of which carried Gymnadenia pollinia.“
[Floral scent emission and pollinator attraction in two species of Gymnadenia (Orchidaceae)., Huber, F.K., Kaiser, R., Sauter, W., Schiestl, F.P., Oecologia, Vol.142(4), 2005, 564-575]
Dietrich, A.G., Flora regni borussici, vol.1 t.66 (1832-1833)
http://plantillustrations.org/species.php?id_species=485171
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