Scrambling plant with pairs of grey/green broad arrow shaped leaves and tendrils. Individual yellow pea type flowers on long stalk.
No interactions present.
... these are pairs of stipules, and Lathyrus aphaca has leaves lacking a blade - that is the lateral leaflets suppressed, and the terminal leaflet replaced by a simple tendril.
Thanks lavateraguy - I'm learning slowly but that was back in the days of pocket flower books - I can't guarantee to get it any better now so keep up the good work.
Lat/Lng: 51.6992, -0.0133
OS grid ref: TL373019