Leaf blade veins 3(or 5). Spikes usually loosely flowered and interrupted. Sepals 2-2.5 mm, keel extending to apex, apex rounded to obtuse. Corolla lobes (0.7-)1-1.2 mm. Pyxis conic-ovoid, 3-4 mm, with 6-15 seeds. Seeds 1.2-1.7(-2) mm. Fl. May-Jul, fr. Aug-Sep. 2n = 24.