甘肃柽柳Tamarix austromongolica

中文名(Chinese Name):甘肃柽柳
学名(Scientific Name):Tamarix austromongolica Nakai
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Tamarix chinensis subsp. austromongolica (Nakai) S.Q. Zhou
科属(Family & Genus):柽柳科(Tamaricaceae)柽柳属
形态特征(Description):灌木或乔木,高1.5-4(-6)米,树干和老枝栗红色,枝直立;幼枝及嫩枝质硬直伸而不下垂。叶灰蓝绿色,木质化生长枝上基部的叶阔卵形,急尖,上部的叶卵状披针形,急尖,长均约2-3毫米,先端均呈尖刺状,基部向外鼓胀;绿色嫩枝上的叶长圆形或长圆状披针形,渐尖,基部亦向外鼓胀。春和夏秋均开花;春季开花,总状花序自去年生的木质化的枝上发出,侧生,花序轴质硬而直伸,长3-4厘米,宽0.5厘米,着花较密,有短总花梗或无梗;有苞叶或无,苞叶蓝绿色,宽卵形,突渐尖,基部渐狭;苞片线状披针形,浅白或带紫蓝绿色;花梗极短。夏、秋季开花,总状花序较春季的狭细,组成顶生大型圆锥花序,生当年生幼枝上,多挺直向上;花5数,萼片5,卵形,急尖,绿色,边缘膜质透明;花瓣5,倒卵状长圆形,淡紫红色,顶端向外反折,花后宿存。花盘5裂,顶端微缺,紫红色;雄蕊5,伸出花瓣之外,花丝丝状,着于花盘裂片间,花药红色;子房三棱状卵圆形,红色,花柱与子房等长,柱头3,下弯。蒴果长圆锥形,长约5毫米。花期5-9月。
分布(Distribution):产青海、甘肃、宁夏、内蒙古、陕西、山西、河北及河南等省区,生于盐渍化河漫滩及冲积平原,盐碱沙荒地及灌溉盐碱地边。
用途(Use):本种性喜水,也能耐干旱、盐碱和霜冻,为黄河中游半干旱和半湿润地区、黄土高原及山坡的主要水土保持林和用柴林造林树种。枝条坚韧,为编筐原料,老枝用作农具柄。
引自中国植物志英文版:FOC Vol. 13 Page 61, 63    
Tamarix austromongolica Nakai, J. Jap. Bot. 14: 291. 1938.
甘蒙柽柳 gan meng cheng liu| Tamaricaceae  | Tamarix
Tamarix chinensis Loureiro subsp. austromongolica (Nakai) S. Q. Zhou.
Shrubs or trees, 1.5-4(-6) m tall. Young branches straight, not pendulous, hard in texture. Leaves gray-green, 2-3 mm, base turgid; those in lower part of growing branches broadly ovate, apex acute; those in upper part ovate-lanceolate, apex acute. Flowers blooming in spring, summer, and autumn. When blooming in spring, racemes lateral in ligneous branches of previous year; inflorescence axis straight, ascending, 3-4 × ca. 0.5 cm, hard in texture, densely flowered; peduncles short or absent; bracts whitish or purple-green, linear-lanceolate; pedicels very short. When blooming in summer and autumn, racemes smaller than those in spring, forming terminal large panicles on young branches of current year, mostly straight and ascending; flowers 5-merous; sepals 5, green, ovate, margin membranous and pellucid, apex acute; petals 5, purplish red, obovate-oblong, apex reflexed, persistent after anthesis; disk purple-red, 5-lobed; lobes emarginate at apex; stamens 5, exserted; filaments filiform, inserted between disk lobes; anthers red; ovary triqueter-ovoid, red; styles ca. as long as ovary; stigmas 3, recurved. Capsule narrowly conic, ca. 5 mm. Fl. May-Sep.
● Salty riversides and plains, salty sandy fields. Gansu, Hebei, Henan, Nei Mongol, Ningxia, Qinghai, Shaanxi, Shanxi.
 甘肃柽柳Tamarix austromongolica

甘肃柽柳Tamarix austromongolica

甘肃柽柳Tamarix austromongolica
(责任编辑:徐晔春)

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