Search Results

Information Coarse annual, often supported by stilt roots; culms 60–250 cm. high. Leaf-blades 20–90 cm. long, 4–15 mm. wide, often narrowed to the midrib and falsely petiolate below. Panicle linear to narrowly lanceolate, 8–40 cm. long; racemes up to 4–8 cm. long, borne on the main axis or on very short branches; internodes and pedicels pilose. Spikelets oblong-elliptic, (3–)4–5(–6) mm. long; lower glume dark brown to black, pubescent with white or fulvous hairs; lower lemma fulvously pubescent at the tip; awn 15–35 mm. long. Fig. 170.

Information Annual. Culms up to over 7 ft. high, simple, rooting from the lowest nodes, rather slender, glabrous. Leaf-sheaths terete, the lowest loose, the others tight, more or less hirsute from tubercles or more often glabrous, slightly striate; ligules up to over 1/2 lin. long, firmly scarious, rounded; blades linear, tapering to a long fine point, gradually narrowed to the base, which is hardly narrower than the mouth of the sheath, up to 1 ft. long and almost 4 lin. wide, flat, appressedly pubescent on both sides, the larger hairs springing from minute tubercles, midrib somewhat stout downwards, rounded on the back, whitish, lateral nerves 3–4 on each side, fine, margins spinulously ciliate. Panicle linear, up to 6 in. by 1/2– 3/4 in., erect; rhachis angular upwards, ciliate on the angles; branches solitary or 2-nate, simple, suberect, up to 2 in. long, angular, ciliate; pedicels 2– 1/4 lin. long, thickened at the tips, ciliate, upper cilia up to 1/2 lin. long, fulvous. Spikelets oblong, 3 lin. long, dark brown, somewhat glossy, densely and brightly fulvous-pubescent. Glumes coriaceous, lower minutely truncate, finely 7–9-nerved, the nerves only visible on the inner side; callus obscure, very shortly bearded; upper very similar. Valve of lower floret oblong, acuminate, almost 2 1/2 lin. long, membranous, hyaline upwards, ciliolate, 2-nerved; of upper floret oblong, shortly 2-lobed, over 1 1/2 lin. long, ciliolate, finely 3-nerved below; awn up to 1 in. long, twisted up to or beyond the middle, flexuous. Valvule rotundate, as long as the lodicules, ciliolate. Lodicules sparingly ciliate. Grain obovate-oblong, very obtuse, 1 3/4 lin. by almost 1 lin., dark brown; embryo-mark very obscure.

Information Annual. Culms up to 9 ft. high, sparingly branched from the base or simple (?), sometimes rooting from the lowest nodes, robust, glabrous. Leaf-sheaths terete, the lowest at length loose, otherwise tight, more or less hirsute from tubercles or glabrous, the lower prominently striate, glabrous at the nodes; ligules firmly scarious, rounded, up to over 1 1/2 lin. long, brown; blades linear, tapering to a long fine point, very gradually narrowed towards the base and there narrower than the mouth of the sheath, 1/2–3 ft. long and up to 4 lin. wide, flat, appressedly pubescent to hirsute with the hairs springing from tubercles, midrib stout downwards, rounded on the back, whitish, lateral nerves 4–6 on each side, fine, margins scabrid to spinulously ciliate. Panicle linear-oblong to oblong, up to 10 in. long and 1–1 1/2 in. wide, rather dense; rhachis more or less grooved and scabrid to spinulously ciliate on the angles above or smooth below; branches usually 2-nate, divided from the base, the longest up to 3 in. long, secondary branches often very few, representing slender narrow racemes up to 2 in. long, all hairy and often silky-villous at the thickened base; pedicels filiform with thickened tips, 2–1 lin. long, hairy, hairs up to 1 lin. long. Spikelets oblong, not quite 2 1/2 lin. long, straw-coloured to chestnut-brown when young, at length dark, slightly glossy, densely greyish-pubescent, at length glabrescent on the back. Glumes thinly coriaceous, lower minutely truncate, finely 7-nerved, callus obscure, very shortly bearded; upper glume very similar. Valve of lower floret oblong, over 1/2 lin. long, hyaline, ciliolate, 2-nerved, of upper oblong, shortly 2-lobed, over 1 lin. long, ciliolate, finely 3-nerved below; awn 1–1 1/4 in. long, twisted up to the middle, the twisted part often flexuous or curved; valvule shorter than the lodicules, ciliolate. Lodicules ciliolate. Anthers 1 1/2 lin. long. Grain obovate-oblong, truncate, 1 lin. long, brown; embryo-mark obscure, about half the length of the grain.

Information Erect stilt-rooted annual up to 300 cm high, slender; nodes and internodes glabrous; leaf sheaths pilose or glabrous; ligule an entire membrane; leaf laminas 20–90 cm × 4–15 mm, linear-lanceolate, pilose on both surfaces but less so on the inferior, the midrib prominent. Panicle 8–40 cm long, compact; racemes 4–8 cm long, the peduncles pilose; spikelets varying from straw-coloured to chestnut-brown. Spikelets 4–5 mm long, oblong; callus obscure. Glumes similar in size, slightly coriaceous; inferior glume finely 7-nerved, narrowly truncate at the apex, pilose; superior glume pilose, especially at the apex and on the margins, often with a glabrous midline. Inferior floret barren, the lemma hyaline, oblong, ciliolate, 2-nerved. Superior floret with an awn 5–8 times the length of the lemma, geniculate with pilose column and scabrid limb; palea present.