which wildflower?

which wildflower?

Observation - which wildflower?. Description: theres an ringroad underpass near to my home which is unusually well laid out with grassed areas, hedges, trees and bushes (well, theyre usually such dumps, arent they?). each year i see something new growing there. last year i discovered birdsfoot trefoi

theres an ringroad underpass near to my home which is unusually well laid out with grassed areas, hedges, trees and bushes (well, theyre usually such dumps, arent they?). each year i see something new growing there. last year i discovered birdsfoot trefoil, a lovely little yellow flower. yesterday i found this plant which i havnt seen there before. there were quite a few of them, standing about 12" high.