Volatile (aroma/scent-defining) compounds from Himalayan Balsam (Impatiens glandulifera)? Has anyone identified the compound(s) that make up the distinctive and intense scent of Himalayan Balsam (Impatiens glandulifera)?

I’ve found a number of compounds associated with Impatiens sp., but it does not look like any of them would be carriers of the scent:


2-Methoxy-1,4-naphthoquinone or "lawsone methyl ether" [an anti-inflammatory, fungicidal agent]
2-Hydroxy-1,4-naphthoquinone (Lawsone) [a dye that is also the principal component of Henna]
Methylene-3,3'-bilawsone (Diphthiocol; 3-[bis(2-hydroxy-1,4-naphthoquinonyl)]methane)
α-Parinaric acid [a polyunsaturated fatty acid]


Neither the naphthoquinones nor the fatty acid are described as having any particular scent, and they are apparently all non-volatile solids, which would rule them out.

I was unable to find any more information online, but maybe someone who is more involved with this kind of research has some pointers. Thank you!
There's seemingly a lot published on the invasion dynamics of Impatiens glandulifera, but little on the scent-giving volatile compounds.

All I could find is a poster from a 2010 symposium on Terpenes - Application, Activity and Analysis, organized by the Phytochemical Society of Europe (PSE).

The authors presented a method to sample volatile compounds from the flowers of the neophytic Impatiens glandulifera and the native Impatiens noli-tangere without cutting them off the plant and analyzed the mixture of compounds by GC-MS.

The scents seem to stem from complex mixtures of monoterpenes.

In the flowers of both plants the following terpenes could be detected:


$\alpha$-pinene
$\beta$-pinene  
camphene 
1,4-cineole
d-limonene
1,8-cineole
$\alpha$-terpinolene
1-terpineol
$\alpha$-terpineol
$\beta$-terpineol


Only in Impatiens noli-tangere were found


(Z)-ocimene
fenchol
geraniol


Only in Impatiens glandulifera was found


$\beta$-phellandrene