Plants hermaphroditic, caespitose, annual. Culms ascending to mat forming, glabrous; internodes hollow, terete.
Leaves cauline, not distinctly distichous; sheaths terete, open; auricles absent; ligules membranous; blades
flat, lax. Panicles open or contracted with spicate primary unilateral branches or without
spicate primary unilateral branches, primary branches spreading to ascending. Spikelets solitary,
laterally compressed, disarticulation above glumes; awnless; sessile or pedicellate (short and stout);
florets 3-12, reduced florets at apex, callus glabrous, rachilla not extended above upper floret;
glumes, first 1-3 veined, second 3-5-veined, unequal, shorter than first floret, glabrous, awnless;
lemmas 5-veined, membranous to indurate, glabrous, obtuse, awnless; paleas present, 2-veined,
awnless, glabrous. Stamens 3. Base chromosome number x=7.
A weedy genus of about seven species native to Europe. These species are commonly adventive
xerophytes of open habitats.