Fls 3 per stem, star-shaped, 80mm wide, facing downwards, deep luminous lemon yellow; perianth segments 36mm long, ovate to oblong, blunt, with slight, pale mucro, reflexed, plane or with margins wavy to incurved, smooth and of heavy substance, overlapping one-third; the inner segments scarcely mucronate; corona 26mm long, cup-shaped, smooth,
mouth straight and wavy, with rim minutely crenate.

There are no photos of "Tristyle" in Daffseek.