Panicum rudgei Roem. & Schult.

Panicum rudgei R. & S. Syst. Veg. 2: 444. 1817
Panicum scoparium Rudge, PI. Guian. 1: 21. 1805. Not P. scoparium Lam. 1798.
Panicum Rudgei brasiliense Raddi, Agrost. Bras. 48. 1823.
Panicum dasytrichum Spreng. Syst. 1 : 317. 1825.
Panicum hirsutum Willd.; Spreng. Syst. 1: 317, as synonym. 1825. Not P. hirsutum Sw. 1797.
Panicum rhigiophyllum Steud. Syn. Gram. 76. 1854.
Panicum rigens Salzm.; Steud. Syn. Gram. 76, as synonym. 1854. Not P. rigens Sw. 1788.
Panicum cayennense divaricatum Doell, in Mart. Fl. Bras. 2 2 : 220. 1877.
Plants perennial, yellow-green or tawny; culms robust, 30-100 cm. high, erect or somewhat geniculate at base, often zigzag, especially above, densely and harshly villous; leaf -sheaths nearly equaling the internodes or overlapping, densely papillosevillous or hirsute; ligule mem-branaceous, ciliate, about 1 mm. long, the hairs of the ligule blending with the hairs of the upper surface of the blade; blades thick, linear, 15-40 cm. long, 5-10 mm. wide, rather rigidly ascending, flat or folded, slightly narrowed toward the base, gradually long-acuminate, densely short-hirsute on both surfaces or glabrate; panicles terminal and in the axils of the approximate upper 2-6 leaves, forming an oblong inflorescence one third the height of the plant, or more, each more or less included at base in the subtending sheath; branches pilose in the axils, branching freely from the base, the branches and branchlets angled, scabrous, the lower branchlets stiffly ascending, the upper and the long pedicels divaricate, somewhat flexuous; spikelets about 3.5 mm. long, 1.5 mm. wide, turgid, somewhat attenuate at base, strongly nerved, sparsely hirsute, the stiff hairs irregularly distributed ; first glume about two thirds the length
of the spikelets, acuminate ; second glume and sterile lemma subequal, exceeding the fruit,
abruptly pointed, the latter subtending a palea and staminate flower; fruit 2.1 mm. long, 1.1
mm. wide, elliptic, smooth and shining, a cartilaginous flap-like appendage at the base.
Type locality: Guiana.
Distribution: Jamaica; Costa Rica to Brazil.

Panicum rudgei adalah spesies tumbuhan yang tergolong ke dalam famili Poaceae. Spesies ini juga merupakan bagian dari ordo Poales. Spesies Panicum rudgei sendiri merupakan bagian dari genus Panicum. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Roem. & Schult..

Panicum rudgei là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Roem. & Schult. mô tả khoa học đầu tiên năm 1817.