栏目

千针苋Acroglochin persicarioides (Poir.) Moq.

千针苋Acroglochin persicarioides (Poir.) Moq.

别名:干针苋;针苋;千针线;刺苋;野麻;

科名:藜科 Chenopodiaceae

属名:千针苋属 Acroglochin

《中国植物志》第25(2)卷009页
  1.千针苋 图版20:5-6
  Acroglochin persicarioides (Poir.) Moq. in DC. Prodr. 13 (2): 254. 1849; Hand.-Mazz. Symb. Sin. 7: 161. 1929.——Amaranthus persicarioides Poir. Dict. Suppl. 1: 311. 1810——Acroglochin chenopodioides Schrad. Cat. Hort. Goett. ex Schult. f. Mant. 1: 227. 1822; Hook. f. Fl. Brit. Ind. 5: 2. 1890; Forb. et Hemsl. in Journ. Linn. Soc. Bot. 26: 323, 1819.——A. obtusifolio. Blom in Act. Hort. Gothob. 3: 151. 1927.
  直立,高30-80厘米。茎通常单一,具条棱及条纹,上部多分枝,枝斜伸。叶片卵形至狭卵形,长3-7厘米,宽2-5厘米,先端急尖,基部楔形,边缘不整齐羽状浅裂,裂片具锐锯齿;叶柄长2-4厘米;上部叶渐小,无裂片。复二歧聚伞花序遍生叶腋,基部分枝或不分枝,长1-6厘米,直立或斜上,末端针刺状的分枝不生花。花被直径约1毫米,5裂至近基部;裂片长卵形至矩圆形,先端钝或急尖,边缘膜质,背部稍肥厚并具微隆脊;雄蕊通常1,花药细小,开花时稍伸出花被外,不具附属物。盖果半球形,直径约1.5毫米,顶面具宿存的花柱,果皮与种皮分离。种子直径略大于1毫米,稍现点网纹,边缘钝。花果期6-11月。
  产湖南、湖北、河南南部、陕西南部、甘肃东南部、贵州、云南、四川至西藏。多生于田边、路旁、河边、荒地等处。印度的北部及克什米尔地区也有分布。

《Flora of China》 Vol. 5 (2003)
Acroglochin persicarioides  (Poiret) Moquin-Tandon
千针苋   qian zhen xian
Amaranthus persicarioides Poiret, Encycl., Suppl. 1: 311. 1810; Acroglochin chenopodioides Schrader; A. obtusifolia Blom; A. persicarioides var. muliensis T. P. Soong; A. persicarioides var. multiflora T. P. Soong.
Plants erect, 30-80 cm tall. Stem usually solitary, ribbed, striate, obliquely branched in upper part. Petiole 2-4 cm; leaf blade ovate to narrowly so, 1.5-7(-8.5) × 0.4-5(-5.5) cm, base cuneate, margin irregularly lobed (lobes acutely serrate), entire on upper leaves, apex acute. Inflorescence borne in axils of almost all leaves, erect or oblique, compoundly dichasiumlike, 0.5-6 cm; ultimate branches needle-like with no flowers. Perianth ca. 1 mm in diam., 5-parted to near base; segments narrowly ovate to oblong, slightly keeled abaxially, margin membranous, apex obtuse or subacute. Stamen usually 1; anthers small, exserted in flower, without an appendage. Pyxidium subglobose, ca. 1.5 mm in diam.; style persistent; pericarp free from testa. Seed ca. 1 mm in diam., rim obtuse. Fl. and fr. Jul-Nov.
Forest margins, riversides, open hillsides, fields, roadsides, wastelands. Gansu, Guizhou, Hubei, S Hunan, Shaanxi, Sichuan, Yunnan [Bhutan, India, Kashmir, Nepal, Pakistan].
Eona Aitken (pers. comm.) adds Bhutan to the general distribution based on a specimen at E collected in 1988.

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