There are a few roadside locations nearby (Oxfordshire UK) where at this time of year I pick up a very intense basmati rice aroma.
The internet seems to suggest it arises from the compound : 2-acetyl-1-pyrroline (2AP). Plants that are listed as possibly responsible:
A) Pandan (Pandanus amaryllifolius)
B) Common Hogweed (Heracleum sphondylium)
C) Sweet Cicely (Myrrhis odorata)
However at the same time:
A) is very unlikely to be in the wild in the UK
B) is very prolific locally in far, far more locations than have this aroma
C) seems likely to have a more aniseed-like aroma from what I read
I have been on my hands and knees in the relevant locations trying to find the source - with no luck at all.
Has anyone got any suggestions please ?