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盐生假木贼Anabasis salsa (C. A. Mey.) Benth. ex Volkens

盐生假木贼Anabasis salsa (C. A. Mey.) Benth. ex Volkens

科名:藜科 Chenopodiaceae

属名:假木贼属 Anabasis

《中国植物志》第25(2)卷147页
  4.盐生假木贼 图版33: 9-10
  Anabasis salsa (C. A. Mey.) Benth. ex Volkens in Engl. u. Prantl, Nat. Pflanzenfam. 3. la: 87. 1893; Iljin in Act. Hort. Petrop. 43: 227. 1930 et in Fl. URSS 6: 288. 1936; Бочанцев in Фл. Узбек. 3: 301. 1953; Грубв, Консп. Фл. МНР 123. 1955; Полояк. in Фл. Казахст. 3: 291. t. 28. f. 1. 1960; Grubov, Pl. Asiae Centr. 2: 106. 1966. ——Brachylepis salsa C. A. Mey. in Ledeb. Fl. Alt. 1: 372. 1829 et in Ledeb. Ic. Pl. Fl. Ross. 1: 12. t. 48. 1829; Bunge, Anab. Rev. 48. 1862.——Anabasis ramosissima Minkw. in Bull. Jard. Bot. 14 (3): 232. 1914.
  半灌木,高10-20厘米。木质茎多分枝,灰褐色至灰白色;当年枝多数,直立或斜升,上部分枝,具5-10节间;节间圆柱状或稍有棱,通常长0.6-2厘米,平滑。下部及中部叶条形,半圆柱状,长2-5毫米,开展并向外弧曲,先端具易脱落的半透明短刺状尖,上部叶鳞片状,三角形,先端稍钝,无刺状尖。花单生叶腋,于枝端集成短穗状花序; 小苞片背面肥厚,边缘膜质;花被片长1.5-2毫米,外轮3片近圆形,内轮2片宽卵形,先端钝,果时无变化,背面不生翅状附属物;花盘裂片不显著或略呈半圆形;子房卵形,平滑,柱头黑褐色。胞果宽卵形,果皮肉质,黄褐色或稍带红色,顶端露于花被外。
  产新疆北部。生于戈壁、盐碱荒漠等处。蒙古及苏联(高加索、哈萨克斯坦、西西伯利亚)也有分布。
  牧草,骆驼秋冬喜食。
形态特征:多年生小半灌木。高10—20cm老枝木质,多分枝,灰褐色至灰白色,当年生枝多数,直立或斜生,上部分枝,具5—10节间,节间圆柱状或稍有棱,通常长0.6—2cm,平滑。上部叶鳞片状,三角形,先端稍钝,下部及中部叶条形,半圆柱状,长2—5mm,开展向外弧曲。花单生,叶腋与枝顶端聚集成短穗状花序,小苞片背面肥厚,边缘膜质。花被片5,长1.5—2mm,内外两轮,背面无翅状附属。
地理分布:我国仅分布于新疆的准噶尔盆地,伊犁谷地和塔城盆地,在国外,蒙古及原苏联的高加索,哈萨克斯坦,西西伯利亚也有分布,为中亚荒漠区系的基本成分。
生态特征:盐生假木贼为超旱生小半灌木,是新疆北疆荒漠重要的一个地带性分布种:4月中旬返青,8月开花,9月结实,10月逐渐开始枯黄。
饲用价值:盐生假木贼由于枝条粗糙,含盐分高,是荒漠植物中饲用价值较低的一种牧草。山羊,绵羊稍食,牛,马几乎不吃。以季节而论,春夏适口性差,秋季枝叶开始干枯,植物体水分盐分减少,适口性有所提高。属于中低等牧草。由于该种分布面积大,在饲料极为贫乏的荒漠区,仍具有重要饲用价值。其化学成分见表102。

《Flora of China》 Vol. 5 (2003)
Anabasis salsa  (C. A. Meyer) Bentham ex Volkens
盐生假木贼   yan sheng jia mu zei
Brachylepis salsa C. A. Meyer in Ledebour, Fl. Altaic. 1: 372. 1829; Anabasis ramosissima Minkwitz; Microlepis salsa (C. A. Meyer) Eichwald.
Subshrubs 10-20 cm tall. Woody stem much branched, gray-brown to gray-white; annual branches numerous, erect or obliquely spreading, upper ones with 5-10 internodes; internodes usually 0.6-2 cm, terete or slightly ribbed, smooth. Lower and middle leaves spreading and recurved, linear, semiterete, 2-5 mm, apex with a pellucid, acicular, caducous awn; upper leaves scale-like, triangular, apex subobtuse, awnless. Flowers solitary in leaf axils, forming short spikes on upper part of branches; bractlets abaxially fleshy, margin membranous. Perianth segments 1.5-2 mm, unchanging in fruit, without abaxial wing; outer 3 segments suborbicular; inner 2 segments broadly ovate, apex obtuse. Disk lobes obscure or slightly semiorbicular. Ovary ovoid, smooth; stigmas black-brown. Utricle broadly ovoid, apex protruding from perianth; pericarp yellow-brown or slightly reddish, fleshy.
Gobi desert, saline-alkaline deserts. N Xinjiang [Kazakhstan, Mongolia, Russia (Lower Volga region, SW Siberia); SW Asia (E Caucasus)].
Camels eat this plant in winter.

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