Spikelets few-to several-flowered, the lowest floret pistillate, the rest staminate, the rachilla joint between the perfect and staminate florets usually elongate; articulation below the glumes, the spikelets falling entire; glumes subequal, broad, obtuse or truncate, often irregularly toothed or lobed, conspicuously cross-veined; lemma of fertile floret broad, usually obtuse, the staminate florets narrower, acutish or subobtuse.