1 | Annual |
1' | Perennial with widely creeping stolons |
2 | Panicle narrowly cylindrical, 30-100 x 5-8 mm, often purplish; lemma 5-nerved; uppermost leaf-sheaths not inflated |
2' | Panicle ellipsoid or ovoid in outline, 20-40 x 10-15 mm, green; lemma faintly 4-nerved; uppermost leaf-sheath conspicuously inflated |