Sporobolus R.Br.

Spikelets 1–2 mm long, dull green-grey, crowded in narrow spike-like panicles, awnless Sporobolus
Panicle very open, lowest branches of inflorescence whorled. Spikelets 1–2 mm long. Upper glume half the spikelet length. Palea entire. Anther 3. Seed c. 0.7 mm long. Erect, annual herb to 75 cm high. Moist areas, grassland. Fl. all year Sporobolus caroli
Lowest branches of inflorescence not whorled (1 or 2 branches only)