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华北珍珠梅Sorbaria kirilowii

时间:2013-11-06 14:32来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 华北珍珠梅 学名( Scientific Name ): Sorbaria kirilowii (Regel) Maxim. 英文名( English Common Name ): giant false spiraea 别名( Chinese Common Name ): 吉氏珍珠梅、珍珠梅 异名( Synonym ): Sorbaria sorbi
中文名(Chinese Name):华北珍珠梅
学名(Scientific Name):Sorbaria kirilowii (Regel) Maxim.
英文名(English Common Name):giant false spiraea
别名(Chinese Common Name):吉氏珍珠梅、珍珠梅
异名(Synonym):Sorbaria sorbifolia var. kirilowii Ito  Spiraea kirilowii Regel ex Tiling
科属(Family & Genus):蔷薇科(Rosaceae)珍珠梅属
形态特征(Description):灌木,高达3米,枝条开展;小枝圆柱形,稍有弯曲,光滑无毛,幼时绿色,老时红褐色;冬芽卵形,先端急尖,无毛或近于无毛,红褐色。羽状复叶,具有小叶片13-21,连叶柄在内长21-25厘米,宽7-9厘米,光滑无毛;小叶片对生,相距1.5-2厘米,披针形至长圆披针形,长4-7厘米,宽1.5-2厘米,先端渐尖,稀尾尖,基部圆形至宽楔形,边缘有尖锐重锯齿,上下两面均无毛或在脉腋间具短柔毛,羽状网脉,侧脉15-23对近平行,下面显著;小叶柄短或近于无柄,无毛;托叶膜质,线状披针形,长8-15毫米,先端钝或尖,全缘或顶端稍有锯齿,无毛或近于无毛。顶生大型密集的圆锥花序,分枝斜出或稍直立,直径7-11厘米。长15-20厘米,无毛,微被白粉;花梗长3-4毫米;苞片线状披针形,先端渐尖,全缘,长2-3毫米;花直径5-7毫米;萼筒浅钟状,内外两面均无毛;萼片长圆形,先端圆钝或截形,全缘,萼片与萼筒约近等长;花瓣倒卵形或宽卵形,先端圆钝,基部宽楔形,长4-5毫米,白色;雄蕊20,与花瓣等长或稍短于花瓣,着生在花盘边缘;花盘圆杯状;心皮5,无毛,花柱稍短于雄蕊。蓇葖果长圆柱形,无毛,长约3毫米,花柱稍侧生,向外弯曲:萼片宿存,反折,稀开展;果梗直立。花期6-7月,果期9-10月。
分布(Distribution):产河北、河南、山东、山西、陕西、甘肃、青海、内蒙古,生于海拔200-1300米山坡阳处、杂木林中。
用途(Use):华北各地常见栽培供观赏。
引自中国植物志英文版:FOC Vol. 9 Page 76      
Sorbaria kirilowii (Regel & Tiling) Maximowicz, Trudy Imp. S.-Peterburgsk. Bot. Sada. 6: 225. 1879.
华北珍珠梅 hu bei zhen zhu mei| Rosaceae  | Sorbaria
Spiraea kirilowii Regel & Tiling, Fl. Ajan. 81. 1858; Sorbaria sorbifolia (Linnaeus) A. Brown var. kirilowii (Regel & Tiling) Ito.
Shrubs to 3 m tall. Branches erect; branchlets glabrous; buds red-brown. Stipules linear-lanceolate, 8–15 mm, glabrous or subglabrous, apex obtuse or acute. Leaflets 13–21, lanceolate to oblong-lanceolate, 4–7 × 1.5–2 cm, glabrous on both surfaces or abaxially pubescent in vein axils, lateral veins in 15–23 pairs, reticulate veins conspicuous, base cuneate to rounded, apex acuminate or caudate. Panicle dense, 7–11 × 5–20 cm; peduncle and pedicels glabrous; bracts lanceolate, 2–5 mm, glabrous, apex acuminate. Flowers 5–7 mm in diam.; pedicel 3–4 mm. Hypanthium shallowly cupular, glabrous on both surfaces. Sepals persistent and reflexed (rarely spreading) in fruit, ovate to oblong, glabrous, apex obtuse. Petals white, obovate or broadly ovate, 4–5 mm. Stamens ca. 20, slightly shorter than or equaling petals. Style lateral. Follicles cylindric, ca. 3 mm; fruiting pedicel erect. Fl. Jun–Jul, fr. Sep–Oct.
Slopes in open mixed forests; 200--1300 m. Gansu, Hebei, Henan, Nei Mongol, Qinghai, Shaanxi, Shandong, Shanxi.
 






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