Inflorescence conical, terminal or axillary, long 10-20 cm, branched, with thin longitudinal edge and densely covered with small protrusions; Bracts are triangular-ovate, with small protrusions and sharp tips, and each bract has 2-4 flowers; Pedicels are slender, 2-3 mm long, with nodes at the lower part and prolonged fruit period; Perianth 5 pieces, deeply divided, white or light green, ovoid lobes, different sizes, the larger 3 pieces have wings on the back, which increase when fruit is produced, and the shape of perianth is nearly round when fruit is produced, with a diameter of 6-7 mm; 8 stamens, the lower part of filament is wider; Style 3, very short, stigma capitate.