绢毛唐松草Thalictrum brevisericeum W. T. Wang et S. H. Wang
绢毛唐松草Thalictrum brevisericeum W. T. Wang et S. H. Wang
10. 绢毛唐松草（秦岭植物志）图版119，120：2；图版123：1-4
Thalictrum brevisericeum W. T. Wang et S. H. Wang,秦岭植物志1 (2) : 239, 图204. 1974.
茎高30-77厘米，被短柔毛，有细纵槽，分枝。基生叶在开花时枯萎。茎中部叶有稍长或短柄，为三回三出复叶；叶片长12-18厘米；小叶坚纸质，顶生小叶近圆形或菱状倒卵形，长和宽均为2-3厘米，顶端圆或钝，有短尖，基部圆形、宽楔形或浅心形，三浅裂，边缘有钝粗齿，背面叶脉隆起，沿明显的脉网疏或密被短柔毛，小叶柄密被短柔毛；叶柄长3.5-6.5厘米，疏被短柔毛，基部有狭鞘，托叶半圆形，边缘多少流苏状。花序圆锥状，长12-25厘米，不等二叉状分枝；轴和花梗均有短柔毛；苞片钻状线形，长1.5-2毫米，被短柔毛；花梗长3-4毫米；萼片5，淡紫色，椭圆状倒卵形，长约2.5毫米，宽约1.5毫米，外面被短柔毛，早落；雄蕊多数，长2.5-5毫米，花药长圆形，长1-1.2毫米，顶端钝，花丝比花药稍窄，倒披针状线形；心皮8-16，无毛。瘦果纺锤形，长约4毫米，有6条纵肋，无柄，花柱拳卷。6月开花。
分布于云南西北部（维西）、甘肃东南部（天水、平凉）、陕西（秦岭）。生海拔950-2300米间山地林边。模式标本采自甘肃天水。
这种近爪哇唐松草T. javanicum, 但茎、叶、花序有绢状短柔毛可以区别。也近弯柱唐松草T. unc nulatum，但后者的小叶较狭长，瘦果有短心皮柄而不同。
《Flora of China》 Vol. 6 (2001)
Thalictrum brevisericeum W. T. Wang & S. H. Wang
绢毛唐松草 juan mao tang song cao
Plants 30--80 cm tall, pubescent. Stems branched, sulcate. Basal leaves withered at anthesis. Cauline leaves shortly petiolate; stipules semiorbicular, margin fimbriate; petiole 3.5--6.5 cm, pubescent; leaf blade 3-ternate, 12--18 cm; petiolule 3.5--6.5 mm; leaflet blade orbicular or rhomboid, 2--3 × 2--3 cm, papery, base rounded, broadly cuneate, or subcordate, abaxially pubescent; lobes 3, margin obtusely toothed, apex acute; veins raised abaxially. Inflorescence paniculate, 12--15 cm, many flowered. Bracts subulate-linear, pubescent. Pedicel 3--4 mm. Sepals 5, early deciduous, purplish tinged, elliptic-obovate, ca. 2.5 × 1.5 mm, abaxially pubescent. Stamens many; filament oblanceolate-linear, slightly narrower than anther; anther 1--1.2 mm, apex obtuse. Carpels 8--16; style circinate. Achenes sessile; body fusiform, ca. 4 mm; veins ca. 6. Fl. Jun.
* Montane forest margins; 900--2300 m. Gansu, Shaanxi, Yunnan.
This species is similar to Thalictrum javanicum, but differs in being pubescent; it is also similar to T. uncinulatum, which differs in having leaflets long and narrow and achenes shortly stipitate.
别名：长喙唐松草;
科名：毛茛科 Ranunculaceae
属名：唐松草属 Thalictrum
10. 绢毛唐松草（秦岭植物志）图版119，120：2；图版123：1-4
Thalictrum brevisericeum W. T. Wang et S. H. Wang,秦岭植物志1 (2) : 239, 图204. 1974.
茎高30-77厘米，被短柔毛，有细纵槽，分枝。基生叶在开花时枯萎。茎中部叶有稍长或短柄，为三回三出复叶；叶片长12-18厘米；小叶坚纸质，顶生小叶近圆形或菱状倒卵形，长和宽均为2-3厘米，顶端圆或钝，有短尖，基部圆形、宽楔形或浅心形，三浅裂，边缘有钝粗齿，背面叶脉隆起，沿明显的脉网疏或密被短柔毛，小叶柄密被短柔毛；叶柄长3.5-6.5厘米，疏被短柔毛，基部有狭鞘，托叶半圆形，边缘多少流苏状。花序圆锥状，长12-25厘米，不等二叉状分枝；轴和花梗均有短柔毛；苞片钻状线形，长1.5-2毫米，被短柔毛；花梗长3-4毫米；萼片5，淡紫色，椭圆状倒卵形，长约2.5毫米，宽约1.5毫米，外面被短柔毛，早落；雄蕊多数，长2.5-5毫米，花药长圆形，长1-1.2毫米，顶端钝，花丝比花药稍窄，倒披针状线形；心皮8-16，无毛。瘦果纺锤形，长约4毫米，有6条纵肋，无柄，花柱拳卷。6月开花。
分布于云南西北部（维西）、甘肃东南部（天水、平凉）、陕西（秦岭）。生海拔950-2300米间山地林边。模式标本采自甘肃天水。
这种近爪哇唐松草T. javanicum, 但茎、叶、花序有绢状短柔毛可以区别。也近弯柱唐松草T. unc nulatum，但后者的小叶较狭长，瘦果有短心皮柄而不同。
《Flora of China》 Vol. 6 (2001)
Thalictrum brevisericeum W. T. Wang & S. H. Wang
绢毛唐松草 juan mao tang song cao
Plants 30--80 cm tall, pubescent. Stems branched, sulcate. Basal leaves withered at anthesis. Cauline leaves shortly petiolate; stipules semiorbicular, margin fimbriate; petiole 3.5--6.5 cm, pubescent; leaf blade 3-ternate, 12--18 cm; petiolule 3.5--6.5 mm; leaflet blade orbicular or rhomboid, 2--3 × 2--3 cm, papery, base rounded, broadly cuneate, or subcordate, abaxially pubescent; lobes 3, margin obtusely toothed, apex acute; veins raised abaxially. Inflorescence paniculate, 12--15 cm, many flowered. Bracts subulate-linear, pubescent. Pedicel 3--4 mm. Sepals 5, early deciduous, purplish tinged, elliptic-obovate, ca. 2.5 × 1.5 mm, abaxially pubescent. Stamens many; filament oblanceolate-linear, slightly narrower than anther; anther 1--1.2 mm, apex obtuse. Carpels 8--16; style circinate. Achenes sessile; body fusiform, ca. 4 mm; veins ca. 6. Fl. Jun.
* Montane forest margins; 900--2300 m. Gansu, Shaanxi, Yunnan.
This species is similar to Thalictrum javanicum, but differs in being pubescent; it is also similar to T. uncinulatum, which differs in having leaflets long and narrow and achenes shortly stipitate.