Tilia platyphyllos Scop. - syn. Tila grandifolia Ehrh. - Malvaceae
large-leaved linden, broad-leaved lime, large-leaved lime, Sommerlinde, Grossblättrige Linde

Deciduous tree, up to 40m in height, native to Europe. Leaves with smooth hairs on both sides, lime-green.
„The small, fragrant, yellowish-white flowers are arranged in drooping, cymose clusters in groups of 3 to 4. Their whitish-green, leaf-like bracts have an oblong-obovate shape.“
http://en.wikipedia.org/wiki/Tilia_platyphyllos

Tea from the dried flowers of Tilia cordata and Tilia platyphyllos is used traditionally as diaphoretic.
http://buecher.heilpflanzen-welt.de/BGA-Kommission-E-Monographien/tiliae-flos-lindenblueten.htm

2,6-dimethyl-3(E),5(Z/E),7-octatriene-2-ol (sweet floral)

The highly sensitive 2,6-dimethyl-3(E),5(Z),7-octatriene-2-ol and its 5(E) isomer (natural ratio 1:10, sweet floral odor) are main constituents present only in the headspace and not in extracts of the flowers of T.platyphyllos (and major constituents in T.cordata).
[Trapping, Investigation and Reconstitution of Flower Scents, Roman Kaiser, in: Müller, P.M., and Lamparsky, D. eds. Perfumes: Art, Science and Technology. Springer Science & Business Media, Dordrecht 1994, 213-250] but
Later on, headspace analysis of hyacinth flowers showed that 2,6-dimethylocta-1,3,5,7-tetraenes and 2,6-dimethylocta-3,5,7-triene-2-ols are associated with charcoal as adsorbing material. It was shown that these compounds are artefacts from ocimene which mainly arise during sampling with charcoal. [Headspace analysis of hyacinth flowers. Brunke, E. J., Hammerschmidt, F. J., Schmaus, G., Flavour and fragrance journal, Vol.9(2), 1994, 59-69]

„The smelling principle of linden blossom is formed by 'narcotic' fragrances such as farnesol or the erogenous esters of phenylacetic acid.“
[Düfte. Signale der Gefühlswelt., Ohloff, G., Zürich 2004]

Dietrich, A.G., Flora regni borussici, vol.12, t.831 (1844) [A.G. Dietrich]
http://plantgenera.org/species.php?id_species=1017807

Tilia platphyllos, CC BY-SA 3.0, Author: Andreas Kraska