The differences between this species and other Forget-me-nots demand a bit of careful examination. I certainly don’t think I would know it straight off – without taking a bit of time and using a hand lens. Growing to about 35cm, it flowers from May to October. The pale blue 5mm flowers are similar but slightly smaller than those of Water Forget-me-not. The calyx teeth are another area to examine closely as they are long and pointed, the calyx often being cut to more than halfway to the base. The hairs on the calyx are flattened. The leaves are hairy. The stems, all of which have adpressed hairs, do not have runners.
I first saw this species in a boggy field in Co Kilkenny in June 2015 on a BSBI Field Trip with the Vice-County Recorder for Co Kilkenny, Roger Goodwillie.
If you are satisfied you have correctly identified this plant, please submit your sighting to the National Biodiversity Data Centre