This is a small, dark purple-flowered member of the large genus Gladiolus which has only been found growing in the wild quite recently. Flowering from April to June, mainly on dry, rocky or sandy ground, it stands about 50cm high and carries its handsome magenta/purple flowers (6cm long) in one-sided spikes of up to twenty blooms on stiff stems. The sepals and petals are united at the base of the flowers, the upper three petals being similar in size to one another and closely pressed, and there are dark, sharp bracts forming a herring-bone pattern behind the flowers. The leaves are sharply pointed sword-shaped. This is not a native plant, being classed as a garden escape, and it belongs to the family Iridaceae.
I first recorded this plant growing along the cliff path at Killiney, Co Dublin in 2006 and I photographed it at that time.
If you are satisfied you have correctly identified this plant, please submit your sighting to the National Biodiversity Data Centre