山西乌头Aconitum smithii Ulbr. ex Hand.-Mazz.
山西乌头Aconitum smithii Ulbr. ex Hand.-Mazz.
147. 山西乌头 图版63: 1-2；图版74: 3
Aconitum smithii Ulbr. ex Hand. -Mazz. in Acta Hort. Gothob. 13: 98. 1939.
块根狭圆锥形或胡萝卜形，长3-3.4厘米。茎高38-80厘米，只在上部被伸展的短柔毛，近等距离生叶，不分枝或分枝，茎下部叶在开花时枯萎，中部叶有稍长柄；叶片圆五角形，长5.2-6.5厘米，宽7-10厘米，三全裂，中央全裂片菱形或楔状菱形，三裂至中部，二回裂片近邻接，末回裂片狭卵形至线形，宽3.5-5毫米，两面无毛；叶柄与叶片近等长，无毛。顶生总状花序有3-7花；轴和花梗密被伸展的淡黄色短柔毛；基部苞片叶状，其他的线形；花梗长0.5-2厘米；小苞片生花梗上部，线形，长3-4毫米；萼片蓝紫色，外面疏被短柔毛，上萼片船状盔形，自基部至喙长1.7-2.1厘米，下缘弧状弯曲，喙，侧萼片长1.3-1.6厘米；花瓣无毛，唇长6毫米，微凹，距短，球形，向后弯曲；雄蕊无毛，花丝全缘；心皮3或4，无毛或子房背面疏被柔毛。8-9月开花。
产山西交城至宁武等地。生海拔2100-2700米山地草坡。模式标本采自交城。
外形似准噶尔乌头 A. soongaricum，但块根2个，花序有开展的淡黄色柔毛，可以区别。
《Flora of China》 Vol. 6 (2001)
Aconitum smithii Ulbrich ex Handel-Mazzetti
山西乌头 shan xi wu tou
Aconitum smithii var. tenuilobum W. T. Wang.
Caudex narrowly conical or carrot-shaped, 3--3.4 cm. Stem 38--80 cm, simple or branched, apically spreading pubescent, with leaves equally arranged along stem. Proximal cauline leaves withered at anthesis, middle ones slightly long petiolate; petiole 5--6 cm, glabrous; leaf blade orbicular-pentagonal, 5.2--6.5 × 7--10 cm, both surfaces glabrous, 3-sect; central segment rhombic or cuneate-rhombic, 3-fid to middle, ultimate lobes narrowly ovate to linear, 1.5--3 or 3.5--5 mm; lateral segments unequally 2-parted. Inflorescence terminal, 3--7-flowered; rachis and pedicels densely spreading yellowish pubescent; basal bracts leaflike, others linear. Pedicels 0.5--2 cm, distally with 2 bracteoles; bracteoles linear, 3--4 mm. Sepals blue-purple, abaxially sparsely pubescent; lower sepals ca. 0.8 cm; lateral sepals 1.3--1.6 cm; upper sepal navicular-galeate, 1.7--2.1 cm from base to beak, lower margin arciform-curved. Petals glabrous; lip 6 mm, slightly concave; spur incurved, globose. Stamens glabrous; filaments entire. Carpels 3 or 4, glabrous or ovary sparsely pubescent abaxially. Fl. Aug--Sep.
* Grassy slopes; 2000--2700 m. W Hebei, Shanxi.
科名：毛茛科 Ranunculaceae
属名：乌头属 Aconitum
147. 山西乌头 图版63: 1-2；图版74: 3
Aconitum smithii Ulbr. ex Hand. -Mazz. in Acta Hort. Gothob. 13: 98. 1939.
块根狭圆锥形或胡萝卜形，长3-3.4厘米。茎高38-80厘米，只在上部被伸展的短柔毛，近等距离生叶，不分枝或分枝，茎下部叶在开花时枯萎，中部叶有稍长柄；叶片圆五角形，长5.2-6.5厘米，宽7-10厘米，三全裂，中央全裂片菱形或楔状菱形，三裂至中部，二回裂片近邻接，末回裂片狭卵形至线形，宽3.5-5毫米，两面无毛；叶柄与叶片近等长，无毛。顶生总状花序有3-7花；轴和花梗密被伸展的淡黄色短柔毛；基部苞片叶状，其他的线形；花梗长0.5-2厘米；小苞片生花梗上部，线形，长3-4毫米；萼片蓝紫色，外面疏被短柔毛，上萼片船状盔形，自基部至喙长1.7-2.1厘米，下缘弧状弯曲，喙，侧萼片长1.3-1.6厘米；花瓣无毛，唇长6毫米，微凹，距短，球形，向后弯曲；雄蕊无毛，花丝全缘；心皮3或4，无毛或子房背面疏被柔毛。8-9月开花。
产山西交城至宁武等地。生海拔2100-2700米山地草坡。模式标本采自交城。
外形似准噶尔乌头 A. soongaricum，但块根2个，花序有开展的淡黄色柔毛，可以区别。
《Flora of China》 Vol. 6 (2001)
Aconitum smithii Ulbrich ex Handel-Mazzetti
山西乌头 shan xi wu tou
Aconitum smithii var. tenuilobum W. T. Wang.
Caudex narrowly conical or carrot-shaped, 3--3.4 cm. Stem 38--80 cm, simple or branched, apically spreading pubescent, with leaves equally arranged along stem. Proximal cauline leaves withered at anthesis, middle ones slightly long petiolate; petiole 5--6 cm, glabrous; leaf blade orbicular-pentagonal, 5.2--6.5 × 7--10 cm, both surfaces glabrous, 3-sect; central segment rhombic or cuneate-rhombic, 3-fid to middle, ultimate lobes narrowly ovate to linear, 1.5--3 or 3.5--5 mm; lateral segments unequally 2-parted. Inflorescence terminal, 3--7-flowered; rachis and pedicels densely spreading yellowish pubescent; basal bracts leaflike, others linear. Pedicels 0.5--2 cm, distally with 2 bracteoles; bracteoles linear, 3--4 mm. Sepals blue-purple, abaxially sparsely pubescent; lower sepals ca. 0.8 cm; lateral sepals 1.3--1.6 cm; upper sepal navicular-galeate, 1.7--2.1 cm from base to beak, lower margin arciform-curved. Petals glabrous; lip 6 mm, slightly concave; spur incurved, globose. Stamens glabrous; filaments entire. Carpels 3 or 4, glabrous or ovary sparsely pubescent abaxially. Fl. Aug--Sep.
* Grassy slopes; 2000--2700 m. W Hebei, Shanxi.