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麻叶绣线菊Spiraea cantoniensis

时间:2013-11-06 14:46来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 麻叶绣线菊 学名( Scientific Name ): Spiraea cantoniensis Lour. 英文名( English Common Name ): Reeves meadowsweet 别名( Chinese Common Name ): 麻叶绣球 异名( Synonym ): Spiraea reevesiana Lindl. Spirae
中文名(Chinese Name):麻叶绣线菊
学名(Scientific Name):Spiraea cantoniensis Lour.
英文名(English Common Name):Reeves' meadowsweet
别名(Chinese Common Name):麻叶绣球
异名(Synonym):Spiraea reevesiana Lindl.  Spiraea neumannii hort. ex Zabel
科属(Family & Genus):蔷薇科(Rosaceae)绣线菊属
形态特征(Description):灌木,高达1.5米;小枝细瘦,圆柱形,呈拱形弯曲,幼时暗红褐色,无毛;冬芽小,卵形,先端尖,无毛,有数枚外露鳞片。叶片菱状披针形至菱状长圆形,长3-5厘米,宽1.5-2厘米,先端急尖,基部楔形,边缘自近中部以上有缺刻状锯齿,上面深绿色,下面灰蓝色,两面无毛,有羽状叶脉;叶柄长4-7毫米,无毛。伞形花序具多数花朵;花梗长8-14毫米,无毛;苞片线形,无毛;花直径5-7毫米;萼筒钟状,外面无毛,内面被短柔毛;萼片三角形或卵状三角形,先端急尖或短渐尖,内面微被短柔毛;花瓣近圆形或倒卵形,先端微凹或圆钝,长与宽各约2.5-4毫米,白色;雄蕊20-28,稍短于花瓣或几与花瓣等长;花盘由大小不等的近圆形裂片组成,裂片先端有时微凹,排列成圆环形;子房近无毛,花柱短于雄蕊。蓇葖果直立开张,无毛,花柱顶生,常倾斜开展,具直立开张萼片。花期4-5月,果期7-9月。
分布(Distribution):产广东、广西、福建、浙江、江西,日本也有。
用途(Use):庭园栽培供观赏。花序密集,花色洁白,早春盛开如积雪,甚美丽。
引自中国植物志英文版:FOC Vol. 9 Page 62      
Spiraea cantoniensis Loureiro, Fl. Cochinch. 1: 322. 1790.
毛萼麻叶绣线菊 mao ye xiu xian ju| Rosaceae  | Spiraea
Shrubs to 1.5 m tall. Branchlets arching, dark red-brown, turning gray-brown when old, slender, terete, glabrous or pubescent; buds ovoid, small, with several scales, glabrous or puberulous apically or on scale margins. Petiole 4–7 mm, glabrous; leaf blade gray-blue abaxially, dark green adaxially, rhombic-lanceolate to rhombic-oblong, 2–8 × 0.7–2 cm, glabrous or abaxially pubescent, pinnately veined, base cuneate, margin incised serrate above middle, apex acute. Umbels pedunculate, 3–4 × 2–3.5 cm, many flowered; rachis and pedicels glabrous or pubescent; pedicels 8–14 mm; bracts linear to lanceolate, 2–3 mm, glabrous or pubescent. Flowers 5–7 mm in diam. Hypanthium campanulate, glabrous or abaxially pubescent. Sepals triangular or ovate-triangular, 1–1.5 × 1.5–2 mm, erect in fruit, apex acute or shortly acuminate. Petals white, suborbicular or obovate, 2.5–4 × 3–4.5 mm, apex emarginate or obtuse. Stamens 20–28, slightly shorter than to nearly equaling petals. Disk annular, lobed; lobes unequal, suborbicular, apex emarginate. Styles shorter than stamens. Follicles straightly spreading, glabrous; styles terminal, usually divergent. Fl. Apr–May, fr. Jul–Sep.
Slopes; 200--300 m. Native at least in N Jiangxi; widely cultivated elsewhere in China [Japan].
 




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