Caespitose perennials. Leaves with blades disarticulating,
the ligule membranous or a fringed
membrane. Inflorescence unbranched, or with
digitate unbranched branches. Pedicellate spikelets
larger than the sessile ones, staminate, the
first glume pubescent, the lemma without an
awn. Pedicels deeply pigmented. Sessile spikelets
staminate in proximal spikelet pairs, bisexual in
distal pairs. Callus sharp, pubescent, obliquely
attached. Lower glume deeply grooved, the groove
translucent. Distal flower lacking a palea.
Four spp., South America.