Philodendron wilburii var. wilburii

Usually hemiepiphytic, sometimes terrestrial; cataphylls 13--26 cm long, unribbed to bluntly 1-ribbed. LEAVES: Petioles 16--46 cm long, obtusely flattened adaxially; blades ovate-triangular, cordate to saggitate at base, 17--36 (averaging 26) cm long, 11--27 (averaging 16) cm wide (1.3--2 times longer than wide, averaging 1.5 times), (1.3--2 times longer than petiole); sinus usually hippocrepiform, sometimes shallowly parabolic. INFLORESCENCE 1--3(4) per axil; peduncle 3.5--14 cm long; spathe 7.5--13.5 cm long; spadix 9--11 cm long; pistillate portion (2.5)3.4--4.3 cm long.