Fl. forming a double triangle, 108mm wide, pure white; perianth segments 40mm long, broadly ovate, blunt, spreading, plane, with midrib showing, of membranaceous substance, overlapping half; the inner segments narrower, somewhat shouldered at base; corona 26mm long, funnel-shaped, smooth, mouth straight, wavy to lightly frilled, with rim crenate. 

Named for the founder of the Irish Garden Plant Society.

There are no photos of "Charles Nelson" in Daffseek.