Fls 11-15 per stem, 42 mm wide; perianth segments ovate, acute, greenish white, spreading, with margins wavy or incurling, smooth and of heavy substance, overlapping one-third; the inner segments more usually blunt at apex; corona cup-shaped, smooth, brilliant yellow, mouth straight or slightly constricted, even, with rim obscurely crenate. Sweetly scented. Resembles a later-flowered ‘Grand Primo Citronière.

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