Perennial (ours). Inflorescence a raceme with relatively few spikelets arranged on opposite sides of the rhachis and facing it laterally. Spikelets 5-20-flowered, subsessile, terete or slightly laterally flattened. Florets fertile but may be reduced above. Glumes unequal, 3-7(-9)-nerved. Lemmas 7-9-nerved, oblong to oblong-lanceolate, dorsally rounded, mucronate or with a straight awn.
Plant / resting place / within puparium of Chromatomyia nigra may be found in leaf-mine of Brachypodium
In Great Britain and/or Ireland: Foodplant / spot causer scattered, immersed, punctiform, blackish pycnidium of Septoria coelomycetous anamorph of Septoria affinis causes spots on dead leaf of Brachypodium
Foodplant / spot causer immersed, minute pycnidium of Septoria coelomycetous anamorph of Septoria tritici senu Rob. & Desm. causes spots on leaf (between veins) of Brachypodium Remarks: season: 5-8 Other: uncertain
Foodplant / feeds on scattered, subepidermal, emerging by vertex, dark brown pycnidium of Stagonospora coelomycetous anamorph of Stagonospora brachypodii feeds on dead, dry leaf of Brachypodium Remarks: season: 4
Foodplant / saprobe gregarious, subepidermal then piercing pycnidium of Stagonospora coelomycetous anamorph of Stagonospora graminella is saprobic on dead leaf of Brachypodium Remarks: season: 10-5