Fl. 102 mm wide; perianth segments brilliant greenish yellow, overlapping half; corona slightly ribbed, vivid yellow, with mouth expanded and frilled, rim flanged and dentate.
Received the Royal Horticultural Society(RHS) Award of Garden Merit(AGM) in 1993 and the award was rescinded by the RHS in 2012.
Ulster Prince, 1 Y-Y, Guy L. Wilson, Northern Ireland, 1950
Photo #59090 Roger Parsons, EnglandUlster Prince, 1 Y-Y, Guy L. Wilson, Northern Ireland, 1950
Photo #461 ADS Photo, USA