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Dichanthium annulatum

雙花草

naturalized
Dichanthium annulatum (Forsk.) Stapf
名彙資訊
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典藏標本
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相關資訊

名彙資訊

學名發表文獻

Stapf, Flora of Tropical Africa 9: 178. 1917.  (Fl. Trop. Afr.)

台灣首次記錄發表文獻

Hsu, Taiwania 16: 312. fig. 16. 1971.

異名

各語言俗名

  • Two-flowered golden beard.
  • まるばあぶらすすき.

參考文獻

特徵描述

生活型

herb

形態特徵

  • Culms tufted, ca. 1 mm in diam., hard, nodes densely covered with silky hairs.
  • Blade 8-10 cm long, 3-4 mm wide, surface covered with tubercle based silky hairs; ligule chartaceous, ca. 1 mm long, upper margin fimbriate.
  • Inflorescence of digitate racemes, racemes 2-8, to 5 cm long, pale purple in color. Spikelets paired, upper ones pedicelate; lower ones sessile, ca. 3 mm long. Lower glume oblong, chartaceous, as long as spikelet, 5-nerved, lower argins inrolled, upper part 2-keeled, with long tubercled hairs along keels, lower back ciliate; upper glume chartaceous, lanceolate, margins inrolled, fimbriate, backside 1-keeled, 3-nerved; lemma linear, 1-nerved, tipped with a long flexuous awn arising from apex, ca. 6 times its length of lemma; palea oblong, hyaline, ca. 2.5 mm long, nerveless; anther ca. 1.8 mm long; lodicules 2, truncate, conspicuously several-nerved, ca. 0.3 mm long.
  • This is an excellent fodder grass which is sought by livestock from a mixture of grasses and eaten in preference to all others.

分布

  • 世界 : Widely distributed in India, Myanmar, tropical and northern Africa, now introduced for fodder in many countries.

引證標本

PINGTUNG: Pingtung, Chang 6016.

參考文獻

典藏標本

共有 16 份典藏標本

    Specimen thumbnail
    177569
    郭城孟 C.M.Kuo
    屏東 Pingtung
    Specimen thumbnail
    171228
    彭鏡毅 Ching-I Peng
    台南 Tainan
    Specimen thumbnail
    166602
    許建昌 Chien-Chang Hsu
    台南 Tainan
    Specimen thumbnail
    166635
    許建昌 Chien-Chang Hsu
    台南 Tainan
    Specimen thumbnail
    166612
    許建昌 Chien-Chang Hsu
    台南 Tainan
    Specimen thumbnail
    166610
    許建昌 Chien-Chang Hsu
    台南 Tainan
    Specimen thumbnail
    166636
    許建昌 Chien-Chang Hsu
    台南 Tainan
    Specimen thumbnail
    166625
    許建昌 Chien-Chang Hsu
    台南 Tainan
    Specimen thumbnail
    169657
    C.C.Hsu
    台南 Tainan
    Specimen thumbnail
    100540
    許建昌 Chien-Chang Hsu

    Specimen thumbnail
    167820
    張慶恩 Ching-En Chang
    屏東 Pingtung
    Specimen thumbnail
    140356
    高木村 M.T.Kao

    Specimen thumbnail
    167826
    高木村 M.T.Kao

    Specimen thumbnail
    167824
    高木村 M.T.Kao

    Specimen thumbnail
    167825
    高木村 M.T.Kao

    Specimen thumbnail
    167823
    高木村 M.T.Kao

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