栏目

针灯心草Juncus wallichianus J. Gay ex Laharpe

针灯心草Juncus wallichianus J. Gay ex Laharpe

别名:针灯芯草;西伯格-高乐-额布苏;小叶灯心草;

科名:灯心草科 Juncaceae

属名:灯心草属 Juncus

《中国植物志》第13(3)卷188页
  32.针灯心草(东北植物检索表)图版43:5-6
  Juncus wallichianus Laharpe in Mem. Soc. Hist. Nat. Par. 3: 139. 1827; 东北植物检索表564. 图版212. 图7. 1959; Ohwi, Fl. Jap. 279. 1956; Noda, Fl. N. -E. Prov. (Manch.) China 261. 1971; 台湾植物志 5: 153. 1978; Kitag. Neo-Lineam. Fl. Mansh. 163. 1979. ——J. prismatocarpus R. Br. var. leschenaultii (Gay) Buchen. subvar. unitubulosus Buchen. in Engl. , Pflanzenr. 25 (IV. 36) : 181. 1906. ——J. pseudo-krameri Satake in Rep. First. Sci. Exped. Manch. sect. 4 (4): 107. 1936; 东北植物检索表564. 1959; Noda, Fl. N. -E. Prov. (Manch.) China 260. 1971.
  多年生草本,高25-40厘米;根状茎横走,具红褐色须根。茎密丛生,直立,圆柱形,具纵条纹,直径1-2毫米,绿色。基生叶1-2枚;茎生叶通常2枚;叶片细长圆柱形,长3-15厘米,宽1-1.5毫米,中空,具明显的横隔,顶端尖锐;叶鞘长2-6厘米,松弛抱茎,下部有时带红紫色;叶耳明显,钝圆,宽约1毫米。复聚伞花序顶生,由多数头状花序组成;头状花序呈半球形,直径2-5毫米,有(2-)4-6(-10)朵花;叶状总苞片通常1枚,长约3-5厘米,常短于花序;苞片卵形,长约2毫米,宽1毫米,膜质;花具短梗;花被片通常披针形,长2-2.8毫米,宽约0.8毫米,顶端渐尖或有短尖头,边缘膜质,稍宽,淡黄褐色或淡紫褐色,内轮者常长于外轮;雄蕊3枚,短于花被片;花药狭长圆形,长约0.7毫米,淡黄色;花丝长约1毫米;花柱长约0.8毫米;柱头3分叉,长0.8-1毫米。蒴果三棱状长圆形,长3-3.5毫米,顶端骤尖,棕褐色,有光泽。种子长卵形,长约0.5毫米,有小尖头,红褐色。花期7-8月,果期8-9月。
  产东北、内蒙古、甘肃、山东。生于海拔1 130-1 680米的河边、沼泽草甸。日本、朝鲜、俄罗斯远东地区也有分布。
  茎、叶可供造纸与编织;嫩茎、叶作饲料。

《Flora of China》 Vol. 24 (2000)
Juncus wallichianus  J. Gay ex Laharpe
针灯心草   zhen deng xin cao
Juncus prismatocarpus R. Brown var. leschenaultii (J. Gay ex Laharpe) Buchenau subvar. unitubulosus Buchenau; J. pseudokrameri Satake.
Plants perennial, densely tufted, 25--40 cm tall. Stems terete, 1--2 mm in diam. Basal leaves 1 or 2, cauline leaves 2; leaf sheath auricles obtuse, 0.6--1 mm; leaf blade terete, 3--15 cm × 1--2 mm, hollow, distinctly septate. Inflorescences terminal; involucral bract leaflike, usually shorter than inflorescence; heads usually more than 25, hemispheric, 2--5 mm in diam., (2--)4--6(--10)-flowered. Perianth segments chestnut brown, lanceolate, 2--2.8 × ca. 0.8 mm, often unequal with inner ones larger than outer, margin scarious, apex mucronate to acuminate. Stamens 3; filaments ca. 1 mm; anthers ca. 0.7 mm. Capsule dark chestnut brown, shiny, trigonous oblong, 2.8--3.5 mm, apex cuspidate. Seeds reddish brown, ca. 0.5 mm. Fl. Jul--Aug, fr. Aug--Sep.
Riversides, swamps, meadows, moist roadsides; 800--2900 m. Fujian, Gansu, Guangdong, Hainan, Heilongjiang, Jilin, Liaoning, Nei Mongol, Shandong, Taiwan, Yunnan, Zhejiang [Bhutan, India, Japan, Korea, Nepal, Russia (Siberia), Sikkim, Sri Lanka].
The stems and leaves are used for paper making and knitting.

TOP