Incompletely known. Leaves apparently indistinguishable from those of A.flava, except for stomata (see notes under the genus). Male inflorescences and flowers apparently as in A. flava. Female flowers unknown. Infructescence cauliflorous, 23-60 cm, either slender, 2-3 cm ø, unbranched, terminating in a carpophore, or branched with main axis to 5 mm ø; carpophore thick, claviform, to 4 cm long, 2 cm ø at apex. Drupes yellow, subglobose, slightly laterally compressed with a faint longitudinal dorsal ridge running all round, 4.5-5.5 cm ø, surface drying finely granular, glabrous; endocarp woody, surface bearing an interrupted layer of radially ar-ranged fibres, these forming a dense dorsal ridge as well as thin lateral, transverse plates.
Secondary forest on clay soil, well drained alluvial soil, from forest edge overhanging water, up to 350 m.