Inflorescences long, pendent spikes clustered at stem apices, male ones mostly branched, female ones usually simple [or axillary, solitary, simple spikes].

• 花序长，下垂的穗状花序簇生于茎顶端，雄花序大部分分枝，雌花序通常单生（或者腋生，单生，简单的穗状花序）。