Fl. rounded; perianth segments very broad, rounded at apex, slightly mucronate, deep golden yellow, a little reflexed, concave at apex, overlapping half; the inner segments narrower, roundish, more nearly spreading; corona shallow bowl-shaped, ribbed, deep golden yellow, with emerald green at base and a narrow band of red at rim, mouth expanded and minutely frilled.

Named to commemorate Ireland’s winning rugby’s Triple Crown after beating England, Scotland, and Wales in the season’s championship.