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白萼委陵菜Potentilla betonicifolia Poir.

白萼委陵菜Potentilla betonicifolia Poir.

别名:草杜仲;沙嘎吉钙音-萨日布;三出叶委陵菜;三出萎陵菜;白叶萎陵菜;白叶委陵菜;三出委陵菜;

科名:蔷薇科 Rosaceae

属名:委陵菜属 Potentilla

《中国植物志》第37卷297页
  47.白萼委陵菜 三出萎陵菜(东北植物检索表),白叶委陵菜(东北草本植物志)图版45:7-8
  Potentilla betonicifolia Poir. Encycl. Method. Bot. 5: 601. 1804; Wolf in Bibl. Bot 71:246. 1908;东北植物检索表152. 图版45. 图4. 1959. ——P. leucophylla Pall. Reise 3:194. 1776. nom. subnudum; Juzep. in Fl. URSS 10:134. 1941: 东北草本植物志5: 14 图版5. 图1-5. 1976. ——P. nivea L. var. angustifolia Ldb. Fl. Ross. 2:58. 1844.
  多年生草本。根粗壮,圆柱形,常木质化。花茎直立或上升,高8-16厘米,初被白色绒毛,以后脱落无毛。基生叶掌状3出复叶,连叶柄长5-12厘米,叶柄初被白色绒毛,以后脱落无毛;小叶片无柄,革质,长圆披针形或卵状披针形,长1-5厘米,宽0.5-1.5厘米,顶端急尖,基部楔形或近圆形,边缘有多数圆钝或急尖粗大锯齿,上面绿色,初被白色绒毛,以后脱落几无毛,下面密被白色绒毛,沿中脉被稀疏绢状柔毛,茎生叶不发达,呈苞叶状;基生叶托叶膜质,褐色,外面被白色绢状长柔毛,茎生叶托叶很小,革质,长卵圆形,全缘,下面被白色绒毛。聚伞花序圆锥状,多花,疏散,花梗长1-1.5 厘米,外被白色绒毛;花直径约1厘米;萼片三角卵圆形,顶端急尖,副萼片披针形或椭圆形,顶端急尖,比萼片短或近等长,外面被白色绒毛及稀疏柔毛;花瓣黄色,倒卵形,顶端圆钝;花柱近顶生,基部膨大,柱头略为扩大。瘦果有脉纹。花果期5-6月。
  产黑龙江、吉林、辽宁、内蒙古、河北。生山坡草地及岩石缝间,海拔700-1600米。苏联、蒙古也有分布。
形态特征:多年生草本。根粗壮,圆柱形,常木质化。花茎直立或上升,高8—16厘米,初被白色绒毛,以后脱落无毛。基生叶掌状3出复叶;连叶柄长5--12厘米,叶柄初被白色绒毛,以 后脱落无毛;小叶片无柄,革质,长圆披针形或卵状披针形,长1--5厘米,宽0.5—1.5厘米,顶端急尖,基部楔形或近圆形,边缘有多数圆钝或急尖粗大锯齿,上面绿色,初被白色绒毛,以后脱落几无毛,下面密被白色绢状长柔毛,茎生叶托叶很小,革质,长卵圆形,叶状;基生叶托叶膜质,褐色,外面被白色绢状长柔毛;茎生叶托叶很小,革质,长卵圆形;全缘,下面被白色绒毛。聚伞花序圆锥状,多花,疏散,花梗长1--1.5厘米,外被白色绒毛;花直径约1厘米;萼片三角卵圆形,顶端急尖,副萼片披针形或椭圆形,顶端急矢,比萼片短或近等长,外面被白色绒毛及稀疏柔毛;花瓣黄色,倒卵形;顶端圆钝;花柱近顶生,基 部膨大;柱头略为扩大。瘦果有脉纹。花果期5--6月。
产地分布:产黑龙江、吉林、辽宁、内蒙古;河北。生山坡草地及岩石缝间,海拔700--1600米。 苏联、蒙古也有分布。
参考文献:Potentilla betonicifolia Poir.Encycl.Method.Bot;5:601.1804;Wolf in Bibl.Bot-71:246.1908;东北植物检索表152.图版45.图4.1959.-----P.Leucophylla Pall.Reise3:194.1776.Nom.subnudum;Juzep;in Fl.URSS 10:134.1941;东北草本植物志5:14.图版5.图1—5.1976.——P.Nivea L.ar.angustifolia Ldb.Fl.Ross.2:58.1844.

《Flora of China》 Vol. 9 (2003)
Potentilla betonicifolia  Poiret
白萼委陵菜   bai e wei ling cai
Potentilla leucophylla Pallas; P. nivea Linnaeus var. angustifolia Ledebour.
Herbs perennial. Roots robust, terete, usually woody. Flowering stems erect or ascending, 8–16 cm tall, together with petioles white tomentose when young, later glabrescent. Radical leaves 5–12 cm including petiole; stipules brown, membranous, abaxially white sericeous-villous; leaf blade 3-foliolate; leaflets sessile, adaxially green, oblong-lanceolate or ovate-lanceolate, 1–5 × 0.5–1.5 cm, leathery, abaxially densely white tomentose, sparsely sericeous pilose along midvein, adaxially white tomentose initially, later glabrescent, base cuneate or subrounded, margin obtusely or acutely coarsely many dentate, apex acute; cauline leaves undeveloped, bractlike; stipules minute, oblong-ovate, leathery, abaxially white tomentose, margin entire. Inflorescences cymose-paniculate, laxly many flowered. Flowers ca. 1 cm in diam.; pedicel 1–1.5 cm, white tomentose. Sepals triangular-ovate, apex acute; epicalyx segments lanceolate or elliptic, shorter than or nearly equaling sepals, abaxially white tomentose and pilose, apex acute. Petals yellow, obovate, apex rounded. Style subterminal, base thickened; stigma slightly dilated. Achenes rugose. Fl. and fr. May–Jun.
Meadows on mountain slopes, rock crevices; 700--1600 m. Hebei, Heilongjiang, Jilin, Liaoning, Nei Mongol [Mongolia, Russia].

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