The _leaf-blade_ is soft, flat, many-nerved, linear, finely acuminate, margins smooth, base rounded or subcordate, glabrous, 6 to 12 inches long, 1/4 to 1/2 inch broad. The _inflorescence_ is a strict spike-like panicle, 6 to 12 inches long by 1/4 to 1/3 inch broad, cylindric, interrupted below; the rachis terete, stout, channelled. The _spikelets_ are glabrous, green, herbaceous, densely packed in small fascicles, ovoid lanceolate, 1/6 to 1/5 inch long; many spikelets are imperfect. [Illustration: Fig. 100.--Panicum interruptum. 1 and 2. Front and back view of a spikelet; 3. first glume; 4. second glume; 5. third glume; 6. palea of third glume; 7 and 8. the fourth glume and its palea; 9. ovary, lodicules and stamens.] There are four _glumes_. The _first glume_ is hyaline, membranous, about 1/3 the length of the third glume, broadly ovate or orbicular, obtuse, 5-nerved. The _second glume_ is membranous, ovate-oblong, obtuse, prominently 9-nerved. The _third glume_ is as long as the second but broader, ovate-oblong, 9-nerved, paleate; _palea_ is small with three stamens or without them. The _fourth glume_ is shorter than the third glume, lanceolate, subacute, thinly coriaceous white, polished, dorsally convex; the _palea_ is as long as the glume and thinly coriaceous. There are two small _lodicules_. This is a rank marsh grass growing abundantly in permanent marshes and edges of tanks and ponds. Cattle eat this along with other grasses, when young and not covered with algae. _Distribution._--In swampy situations throughout India and Ceylon. =Panicum trypheron, _Schult._= The plant is a tufted annual leafy at the base, with branches spreading a little at the base and then erect, varying in length from 1/2 to 3 feet. Stems are stout or slender, cylindric or slightly compressed towards the base. The _leaf-sheath_ is striated, green or purple tinged, shorter than the internodes, the upper portion hairy (sometimes tubercle-based) and the lower glabrous, with sometimes ciliate margin. The _ligule_ is a short membrane with a fringe of slender hair-like processes. _Nodes_ are glabrous. The _leaf-blade_ is flat, convolute when young, linear-lanceolate, acute or narrow linear-lanceolate, acuminate, hairy on both sides (hairs indistinctly bulbous-based); margin is very minutely serrate and often ciliate with tubercle-based hairs; base is narrowed, slightly rounded or cordate; midrib is conspicuous though narrow and keeled; length 1 to 7 inches and breadth 1/8 to 3/8 inch.