栏目

糖蜜草Melinis minutiflora Beauv.

糖蜜草Melinis minutiflora Beauv.

科名:禾本科 Gramineae

属名:糖蜜草属 Melinis

《中国植物志》第10(1)卷228页
  1.糖蜜草(禾本科图说)图版69
  Melinis minutiflora Beauv. Ess. Agrost. 54. t. ll. f. 4. 1812: Hitchc. Man. Grass. Unit. Stat. 569. f. 820. 1950; 中国主要植物图说 禾本科667. 图604. 1959; Bor, Grass. Burm. Ceyl. Ind. Pakist. 315. f. 35. 1960;台湾的禾草541. 图165. 1975; 合湾植物志5: 562. 1978. ——Suardia picta Schrank, Pl. Rar. Hort. Acad. Monac. t. 58. 1819.——Tristegis glutinosa Nees, Hor. Phys. Berol. 47. 54. 1820. ——Panicum minutiflorum (Beauv.) Raspail in Ann. Sci. Nat. Bot. 5:229. 1825. ——Panicum melinis Trin. in Mom. Acad. Sci. St. Pkersb. ser. 6(3): 291. 1834. ——Muhlenbergia brasiliensis Steud. Syn. Pl. Glum. 1: 177. 1854.
  多年生栽培牧草;植物体被腺毛,有糖蜜味。秆多分枝,基部平卧,于节上生根,上部直立,开花时高可达1米,节上具柔毛。叶鞘短于节间,疏被长柔毛和瘤基毛;叶舌短,膜质,顶端具睫毛;叶片线形,长5-10厘米,宽5-8毫米,两面被毛,叶缘具睫毛。圆锥花序开展,长10-20厘米,末级分枝纤细,弓曲;小穗卵状椭圆形,长约2毫米,多少两侧压扁,无毛;第一颖小,三角形,无脉,第二颖长圆形,具7脉,顶端2齿裂,裂齿间具短芒或无;第一小花退化,外稃狭长圆形,具5脉,顶端2裂,裂齿间具1纤细的长芒,长可达10毫米,内稃缺;第二小花两性,外稃卵状长圆形,较第一小花外稃稍短,具3脉,顶端微2裂,透明,内稃与外稃形状,质地相似;鳞被2;花柱2,基部联合,柱头羽毛状。颖果长圆形。染色体2n=36。花果期7-10月。
  本种原产非洲,现已为许多热带国家引种栽培为牧草。我国台湾已归化,四川等地曾有引种。

《Flora of China》 Vol. 22 (2006)
Melinis minutiflora  P. Beauvois
糖蜜草   tang mi cao
Muhlenbergia brasiliensis Steudel; Panicum melinis Trinius, nom illeg. superfl.; P. minutiflorum (P. Beauvois) Raspail; Suardia picta Schrank; Tristegis glutinosa Nees.
Perennial. Culms tufted, geniculately ascending, rooting at lower nodes, 50–150 cm tall. Leaf sheaths and blades densely tomentose with glandular hairs, slightly sticky with a strong smell; leaf blades linear, 5–20 × 0.5–1.5 cm. Panicle purplish, narrowly ovate, 10–20 cm; pedicels glabrous, scaberulous, rarely with a few hairs toward the apex. Spikelets narrowly ovate-oblong, 1.7–2.2 mm; lower glume ovate, 0.1–0.4 mm, veinless; upper glume prominently 7-veined, obtusely 2-lobed, awnless or with a mucro to 1 mm from the sinus; lower floret neuter without a palea, lemma similar to upper glume but narrower, prominently 5-veined, acutely 2-lobed, awnless or with a slender awn to 15 mm from the sinus; upper floret whitish, thinly cartilaginous, smooth, shining, slightly shorter than lower lemma. Fl. and fr. Jul–Oct. 2n = 36.
Introduced into S China as a fodder grass, locally naturalized. Hong Kong, Taiwan, Yunnan [native to Africa].
This species has been introduced into many tropical countries for fodder (Molasses Grass).

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