Common Fumitory grows to a height of 20-30cm, bearing 20-40 flowers in dense spikes that are longer than their stalks. Very similar to other fumitories, this particular species can be identified by the shape of its lower petals. While being quite similar to Common Ramping-fumitory, the lower petals are paddle-shaped and have crimson tips. The upper petals are flattened with the wings concealing the keel. The sepals are irregularly toothed. The flowers are born on weak scrambling stems. The leaves are grey-green and divided with flat, narrow leaflets.
I first saw this species in spring of 2020, on a short walk during lockdown. It was growing in Dalkey, Co Dublin, on ground that was within our permitted range and I thought it was Common Ramping-fumitory until Paul Green, BSBI Vice-county Recorder for Wexford, identified it for me, along with two other fumitories that were growing nearby.
If you are satisfied you have correctly identified this plant, please submit your sighting to the National Biodiversity Data Centre