Flower buds prior to expansion 16-20 cm in diameter, cupule 10-14 cm in diameter, bracts up to 17-18 cm long, 12-13 cm wide. Open flower about 80 cm diameter. Ramenta on the inside of the flower tube 7-10 mm long, filiform, somewhat thickened at apex, or branched, partly in fascicles. Diaphragm 6-8 cm from insertion to opening, opening 13-14 cm in diameter, margin with pinkish zone, lower face except the marginal zone provided with ramenta c. 4-5 mm long. Perigone lobes 25-26 cm diameter, with yellowish whitish warts, which are laterally stretched, irregular shaped, partly connected and about 4 or 5 across in the middle part. Disk 12-13 cm diameter, processes 30-50. Male flowers with 26-38(-40) anthers.
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