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白刺花Sophora davidii

时间:2018-08-14 08:07来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):白刺花 学名( Scientific Name ): Sophora davidii (Franch.) Skeels 英文名( English Common Name ): 别名( Chinese Common Name ): 狼牙刺、白刺槐 异名( Synonym ): Sophora viciifolia Hance Sophora moorcroftia
中文名(Chinese Name):白刺花
学名(Scientific Name):Sophora davidii (Franch.) Skeels
英文名(English Common Name):
别名(Chinese Common Name):狼牙刺、白刺槐
异名(Synonym): Sophora viciifolia Hance  Sophora moorcroftiana subsp. viciifolia (Hance) Yakovlev  Sophora moorcroftiana var. davidii Franch.  Sophora viciaefolia Hance  Caragana chamlago B.Mey.
科属(Family & Genus):蝶形花科槐属
形态特征(Description): 灌木或小乔木,高1-2米,有时3-4米。枝多开展,小枝初被毛,旋即脱净,不育枝末端明显变成刺,有时分叉。羽状复叶;托叶钻状,部分变成刺,疏被短柔毛,宿存;小叶5-9对,形态多变,一般为椭圆状卵形或倒卵状长圆形,长10-15毫米,先端圆或微缺,常具芒尖,基部钝圆形,上面几无毛,下面中脉隆起,疏被长柔毛或近无毛。总状花序着生于小枝顶端;花小,长约15毫米,较少;花萼钟状,稍歪斜,蓝紫色,萼齿5,不等大,圆三角形,无毛;花冠白色或淡黄色,有时旗瓣稍带红紫色,旗瓣倒卵状长圆形,长14毫米,宽6毫米,先端圆形,基部具细长柄,柄与瓣片近等长,反折,翼瓣与旗瓣等长,单侧生,倒卵状长圆形,宽约3毫米,具1锐尖耳,明显具海棉状皱褶,龙骨瓣比翼瓣稍短,镰状倒卵形,具锐三角形耳;雄蕊10,等长,基部连合不到三分之一;子房比花丝长,密被黄褐色柔毛,花柱变曲,无毛,胚珠多数,荚果非典型串珠状,稍压扁,长6-8厘米,宽6-7毫米,开裂方式与砂生槐同,表面散生毛或近无毛,有种子3-5粒;种子卵球形,长约4毫米,径约3毫米,深褐色。花期3-8月,果期6-10月。
分布(Distribution):产华北、陕西、甘肃、河南、江苏、浙江、湖北、湖南、广西、四川、贵州、云南、西藏。生于海拔2500米以下河谷沙丘和山坡路边的灌木丛中。
用途(Use):本种耐旱性强,是水土保持树种之一,也可供观赏。
引自植物志英文版:FOC Vol. 10 Page 86, 89
Sophora davidii (Franchet) Skeels, U.S.D.A. Bur. Pl. Industr. Bull. 282: 68. 1913.
白刺槐 bai ci huai| Fabaceae  | Sophora
Shrubs or small trees, 1-2 m high, rarely 3-4 m. Branches glabrous; sterile branches spiny at tip, some spines branched. Leaves 2-6.5(-8) cm; stipules subulate, some becoming spiny, sparsely pubescent, persistent; leaflets 11-19, usually elliptic-ovate or obovate-oblong, 5-20 mm, sparsely villous abaxially, glabrous adaxially, apex rounded or retuse, usually with mucro. Racemes terminal at branchlets. Flowers small, ca. 15 mm or less. Calyx campanulate, blue-purple, unequally 5-toothed, gla­brous. Corolla white or light yellow, some red-purple on stan­dard, rarely blue-purple; standard obovate-oblong, ca. 14 × 6 mm, rounded at apex, with slender claw at base, reflexed; wings equal to standard, obovate-oblong, ca. 3 mm wide, auriculate on one side; keel slightly shorter than wings, falcate-obovate, au­riculate. Stamens 10, equal, slightly fused at base. Ovary longer than stamens, densely yellow-brown hairy, many ovuled; style curved, glabrous. Legumes slightly compressed, 6-8 × 0.6-0.7 cm, 2-valvate along sutures, sparsely hairy. Seeds 3-5, dark brown, ovoid, ca. 4 mm. Fl. Mar-Aug, fr. Jun-Oct.
● Valley scrub, hill slopes, sandy places in valleys; below 3400 m. Gansu, Guangxi, Guizhou, Hebei, Henan, Hubei, Hunan, Jiangsu, Shaanxi, Sichuan, Xizang, Yunnan, Zhejiang.




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