Fl. 72mm wide; perianth segments 27mm long, broad, oblong in outline, rounded at apex, prominently mucronate, yellowish white, slightly reflexed, plane or with margins incurved, smooth and of heavy substance, overlapping half; the inner segments narrower, broadly ovate, truncate, not noticeably mucronate; corona 2mm long, bowl-shaped, broadly ribbed, brilliant yellow, with strong yellow-green at base and a very narrow band of orange at rim, mouth straight and lightly frilled, with rim crenate. Sunproof. Sweetly scented.

Named in honor of the Ohio poet; whose works include The Branch will not Break.