Yellow Corydalis grows 30cm high. Its flowers are 12-18mm long, bright-yellow, 2-lipped with 2 outer & 2 inner petals, 2 tiny sepals. These unusual flowers are borne - 6-16 flowers at a time - in a long raceme on greyish-green, branched stems. The leaves are pinnately lobed ending in a leaflet. They are a delicate, grey-green. It is a garden escape, now naturalised in a few locations and seems to like growing on old walls and rocky ground. It is a perennial and it belongs to the Poppy or Papaveraceae family.
I first recorded this plant in Dalkey, Co Dublin in 1998 and photographed it in Co Kildare in 2012.
If you are satisfied you have correctly identified this plant, please submit your sighting to the National Biodiversity Data Centre