Corolla 10-20 mm diam.; outside speckled with purple to pale yellow; inside varying from yellow to cream with fine brownish spots becoming denser towards tips of lobes and in tube, to spotted with red on white in tube with dark purple-brown lobes, devoid of papillae; lobes 6.5-14.0 mm long, 4.0-4.5 mm broad at base, margins folded back down middle in upper half to two thirds, tapering gradually from base to acute tip. Corona 2.6-3.0 mm diam., purple-to red-brown above, lower half bright yellow; inner lobes with truncate ridge-like dorsal projection.