角苞蒲公英Taraxacum stenoceras Dahlst.
角苞蒲公英Taraxacum stenoceras Dahlst.
45.角苞蒲公英（西藏植物志）图版10：1-5
Taraxacum stenoceras Dahlst. in Act. Hort. Gothob. 2: 166. f. 8, t. 2, f. 9-11. 1926; S. Y. Hu in Quart. Journ. Taiwan Mus. 22: 659. 1969;西藏植物志4: 932. 1985.
多年生草本。叶长5-15厘米，倒披针形，全缘，羽状浅裂至深裂，基部渐狭，具短柄，顶端裂片箭头形或戟形，全缘；侧裂片三角形或线形，倒向，近全缘或上部边缘具1-2浅裂片，通常无毛，稀少疏生有蛛丝状柔毛。花葶长于叶，长5-15厘米；头状花序直径约40毫米；总苞长12-15毫米，总苞片干后淡墨绿色至墨绿色；外层总苞片披针形，稍狭于或约等宽于内层总苞片，先端具极长的小角，小角先端，锐尖；内层总苞片先端也具小角，但其角较外层者为短；舌状花黄色，边缘花舌片背面有紫色条纹。瘦果倒卵状长圆形，淡黄褐色或淡砖红色，长约4毫米，全部具小瘤状突起或1/3以上具小刺，顶端逐渐收缩成长约1毫米的喙基，喙长5-9毫米。冠毛长5-6毫米，淡黄白色。
产甘肃西南部、青海、四川西北部及西藏。生于海拔3000-4500米的山坡草地或田边湿地。模式标本采自四川松潘。
形态特征：多年生草本。叶长5—15厘米，倒披针形，全缘，羽状浅裂至深裂，基部渐狭，具短柄，顶端裂片箭头形或戟形，全缘；侧裂片三角形或线形，倒向，近全缘或上部边缘具1—2浅裂片，通常无毛，稀少疏生有蛛丝状柔毛。花葶长于叶，长5—15厘米；头状花序直径约40毫米；总苞长12—15毫米，总苞片干后淡墨绿色至墨绿色；外层总苞片披针形，稍狭于或约等宽于内层总苞片，先端具极长的小角，小角先端，锐尖；内层总苞片先端也具小角，但其角较外层者为短；舌状花黄色，边缘花舌片背面有紫色条纹。瘦果倒卵状长圆形，淡黄褐色或淡砖红色，长约4毫米，全部具小瘤状突起或1／3以上具小刺，顶端逐渐收缩成长约1毫米的喙基，喙长5—9毫米。冠毛长5—6毫米，淡黄白色。
产地分布：产甘肃西南部、青海、四川西北部及西藏。生于海拔3000--4500米的山坡草地或田边湿地。模式标本采自四川松潘。
参考文献：Taraxacum stenocerasDahlst．inAct．Hort．Gothob．2：166．F．8，t．2，f．9—11． 1926；S．Y．Hu in Quart．Journ．Taiwan Mus．22：659．1969；西藏植物志4：932． 1985．
《Flora of China》 Vol. 20-21 (2011)
46. Taraxacum stenoceras Dahlstedt, Acta Horti Gothob. 2: 166. 1926.
角苞蒲公英 jiao bao pu gong ying
Herbs 15-20 cm tall. Petiole pinkish, ± unwinged; leaf blade light green, narrowly oblanceolate, 7-14(-17) × 1.2-3 cm, sparsely arachnoid, pinnatilobed to pinnatisect, midvein pinkish; lateral lobes (3 or)4-7 pairs, usually hamate-recurved, 1.5-2 cm, narrow, margin apically sparsely, minutely, or coarsely dentate (to lobulate) or rarely entire; interlobes short, margin entire, dentate, or lobulate; terminal lobe helmet-shaped to triangular, 1.5-2 × 1.2-2.2 cm, margin usually entire. Scapes brownish green, ± equaling leaves, sparsely arachnoid at base but densely arachnoid below capitulum. Capitulum 3-4 cm wide. Involucre 5-7 mm wide, base narrowly rounded. Outer phyllaries 22-25, pale green, ± not imbricate, linear-lanceolate, outermost ones 7-8 × 1.2-1.8 mm and ca. 3/4 as long as inner ones, ± subappressed, with a paler 0.2-0.3 mm wide border, margin glabrous to sparsely ciliate, apex with a thin perpendicular ca. 5 mm horn; inner phyllaries 5-7 mm, with a thin horn below apex. Ligules (pale) yellow; outer ligules flat, outside striped purplish; inner ligules with purple teeth; floret tube outside pubescent. Stigmas dirty yellow to greenish. Anthers polliniferous; pollen grains irregular in size. Achene grayish straw-colored brown, 3.8-4.4 × 1-1.2 mm; body apically spinulose, ± gradually narrowing into a subconic ca. 1.2 mm cone; beak 6-7 mm. Pappus ± white, 5-6 mm. Fl. summer. Agamosperm.● Disturbed mountain grasslands; 3000-3600 m. NW Sichuan.
Reports of Taraxacum stenoceras from SE Gansu, E and SE Qinghai, and Xizang (FRPS 80(2): 52. 1999; Higher Pl. China 11: 781. 2005) remain to be proven.
别名：苦芒;
科名：菊科 Compositae
属名：蒲公英属 Taraxacum
45.角苞蒲公英（西藏植物志）图版10：1-5
Taraxacum stenoceras Dahlst. in Act. Hort. Gothob. 2: 166. f. 8, t. 2, f. 9-11. 1926; S. Y. Hu in Quart. Journ. Taiwan Mus. 22: 659. 1969;西藏植物志4: 932. 1985.
多年生草本。叶长5-15厘米，倒披针形，全缘，羽状浅裂至深裂，基部渐狭，具短柄，顶端裂片箭头形或戟形，全缘；侧裂片三角形或线形，倒向，近全缘或上部边缘具1-2浅裂片，通常无毛，稀少疏生有蛛丝状柔毛。花葶长于叶，长5-15厘米；头状花序直径约40毫米；总苞长12-15毫米，总苞片干后淡墨绿色至墨绿色；外层总苞片披针形，稍狭于或约等宽于内层总苞片，先端具极长的小角，小角先端，锐尖；内层总苞片先端也具小角，但其角较外层者为短；舌状花黄色，边缘花舌片背面有紫色条纹。瘦果倒卵状长圆形，淡黄褐色或淡砖红色，长约4毫米，全部具小瘤状突起或1/3以上具小刺，顶端逐渐收缩成长约1毫米的喙基，喙长5-9毫米。冠毛长5-6毫米，淡黄白色。
产甘肃西南部、青海、四川西北部及西藏。生于海拔3000-4500米的山坡草地或田边湿地。模式标本采自四川松潘。
形态特征：多年生草本。叶长5—15厘米，倒披针形，全缘，羽状浅裂至深裂，基部渐狭，具短柄，顶端裂片箭头形或戟形，全缘；侧裂片三角形或线形，倒向，近全缘或上部边缘具1—2浅裂片，通常无毛，稀少疏生有蛛丝状柔毛。花葶长于叶，长5—15厘米；头状花序直径约40毫米；总苞长12—15毫米，总苞片干后淡墨绿色至墨绿色；外层总苞片披针形，稍狭于或约等宽于内层总苞片，先端具极长的小角，小角先端，锐尖；内层总苞片先端也具小角，但其角较外层者为短；舌状花黄色，边缘花舌片背面有紫色条纹。瘦果倒卵状长圆形，淡黄褐色或淡砖红色，长约4毫米，全部具小瘤状突起或1／3以上具小刺，顶端逐渐收缩成长约1毫米的喙基，喙长5—9毫米。冠毛长5—6毫米，淡黄白色。
产地分布：产甘肃西南部、青海、四川西北部及西藏。生于海拔3000--4500米的山坡草地或田边湿地。模式标本采自四川松潘。
参考文献：Taraxacum stenocerasDahlst．inAct．Hort．Gothob．2：166．F．8，t．2，f．9—11． 1926；S．Y．Hu in Quart．Journ．Taiwan Mus．22：659．1969；西藏植物志4：932． 1985．
《Flora of China》 Vol. 20-21 (2011)
46. Taraxacum stenoceras Dahlstedt, Acta Horti Gothob. 2: 166. 1926.
角苞蒲公英 jiao bao pu gong ying
Herbs 15-20 cm tall. Petiole pinkish, ± unwinged; leaf blade light green, narrowly oblanceolate, 7-14(-17) × 1.2-3 cm, sparsely arachnoid, pinnatilobed to pinnatisect, midvein pinkish; lateral lobes (3 or)4-7 pairs, usually hamate-recurved, 1.5-2 cm, narrow, margin apically sparsely, minutely, or coarsely dentate (to lobulate) or rarely entire; interlobes short, margin entire, dentate, or lobulate; terminal lobe helmet-shaped to triangular, 1.5-2 × 1.2-2.2 cm, margin usually entire. Scapes brownish green, ± equaling leaves, sparsely arachnoid at base but densely arachnoid below capitulum. Capitulum 3-4 cm wide. Involucre 5-7 mm wide, base narrowly rounded. Outer phyllaries 22-25, pale green, ± not imbricate, linear-lanceolate, outermost ones 7-8 × 1.2-1.8 mm and ca. 3/4 as long as inner ones, ± subappressed, with a paler 0.2-0.3 mm wide border, margin glabrous to sparsely ciliate, apex with a thin perpendicular ca. 5 mm horn; inner phyllaries 5-7 mm, with a thin horn below apex. Ligules (pale) yellow; outer ligules flat, outside striped purplish; inner ligules with purple teeth; floret tube outside pubescent. Stigmas dirty yellow to greenish. Anthers polliniferous; pollen grains irregular in size. Achene grayish straw-colored brown, 3.8-4.4 × 1-1.2 mm; body apically spinulose, ± gradually narrowing into a subconic ca. 1.2 mm cone; beak 6-7 mm. Pappus ± white, 5-6 mm. Fl. summer. Agamosperm.● Disturbed mountain grasslands; 3000-3600 m. NW Sichuan.
Reports of Taraxacum stenoceras from SE Gansu, E and SE Qinghai, and Xizang (FRPS 80(2): 52. 1999; Higher Pl. China 11: 781. 2005) remain to be proven.