Fl. forming a double triangle, 59mm wide; perianth segments 27mm long, broadly ovate, truncate, scarcely mucronate, greenish white 155C, reflexed, plane or with margins incurved, with midrib showing, of heavy substance, overlapping half or more; the inner segments more nearly spreading; corona 3mm long, cup-shaped, angled, green, with a broad band of vivid greenish yellow 2A at rim, mouth expanded, ribbed and wavy, with rim minutely crenate. Very late. Sweetly scented.

Named for an American poet.