Eragrostis lacunaria

Slender, tufted perennial or annual, culms erect, sometimes branched, to 60 cm high. Leaves sprinkled with fine, tubercle-based hairs, occasionally merely tuberculate or glabrous; blade closely inrolled, to 7 cm long and 1 mm wide. Inflorescence an open panicle, to 18 cm long and 10 cm wide, branches finally stiffly spreading, lower branches solitary. Spikelets 9–35-flowered, 5–20 mm long and 0.7–1.5 mm wide, commonly strongly purplish and shining; glumes acute, 0.6–1.2 mm long, subequal, scarious, early-deciduous; lemmas closely overlapping, 1–1.4 mm long, obtuse or broadly acute, lateral nerves indistinct, nearer to margin than to keel; palea slightly shorter than lemma. Anthers 0.1–0.2 mm long. Flowers Dec.–Mar.