太白棱子芹Pleurospermum giraldii Diels

别名：药茴香;

科名：伞形科 Umbelliferae

属名：棱子芹属 Pleurospermum

《中国植物志》第55(1)卷140页
  5．太白棱子芹 药茴香（太白山）图版69
  Pleurospermum giraldii Diels in Engl. Bot. Jahrb. 29: 492. 1900; de Boiss. in Bull. Soc. Bot. France 53: 43. 1906. ——P. meoides Diels in Engl.Bot. Jahrb. 29: 493. 1900. syn. nov. ——P. limprichtii Wolff in Fedde Repert. Sp. Nov. Beih. 12: 477. 1922. syn. nov.
  多年生草本，高20-35厘米，全体无毛。根粗壮，暗褐色，径0.5-1厘米，下部分枝，茎直立，通常不分枝或有少数分枝，带紫色，有条棱。基生叶或下部的叶有长柄，基部扩展成膜质抱茎的鞘，叶片轮廓三角状卵形，长5-8厘米，3-4回羽状全裂，末回裂片线形，长1.5-3毫米，宽0.3-0.5毫米，茎上部叶有短柄或近无柄。复伞形花序通常单一，稀2-3，径3.5-4.5厘米；总苞片5-7，卵状椭圆形或倒卵形，长1.5-2厘米，宽5-8毫米，大部白色膜质，顶端呈叶状细裂，常带紫色；伞辐9-15，长1.5-2.5厘米；小总苞片与总苞片同形，较花柄略长；小伞形花序有花18-30；花柄长2.5-3.5毫米；花瓣白色，倒心形，长约1毫米，顶端有尾状内曲的小舌片，基部有爪；雄蕊长于花瓣，花药紫黑色。果实长圆形，长3.5-4毫米，果棱有翅，每棱槽有油管3，合生面6。花期7-8月，果期9-10月。
  产陕西、湖北、四川、甘肃等省。生于海拔3000-3600米的山坡草地。模式标本采自陕西太白山。
  全草入药，能温中，化食，止带，主治胃寒腹痛，腹胀，不思饮食，白带（陕西太白民间）。

《Flora of China》 Vol. 14 (2005)
Pleurospermum giraldii  Diels
太白棱子芹   tai bai leng zi qin
Plants 20–35 cm, glabrous. Root dark brown, 0.5–1 cm across, branched. Stem tinged purple, ribbed, simple or little branched. Basal and lower leaves long-petiolate, sheaths membranous; blades triangular-ovate, 5–8 cm, 3–4-ternate-pinnate; ultimate segments linear, 1.5–3 × 0.3–0.5 mm. Leaves gradually reduced upwards, petioles becoming almost wholly sheathing. Umbel often 1, rarely 2–3, 3.5–4.5 cm across; bracts 5–7, ovate-elliptic or obovate, 15–20 × 5–8 mm, white or tinged purple, membranous; rays 9–15, 1.5–2.5 cm; bracteoles 5–7, obovate, longer than flowers, margin white membranous to first lobes, apex pinnatisect; pedicels 18–30, 2.5–3.5 mm. Calyx teeth minute, triangular. Petals obcordate, white, ca. 1 mm. Stamens longer than petals, anthers purple-black. Fruit oblong, 3.5–4 mm; ribs winged; vittae 3 in each furrow, 6 on commissure. Fl. Jul–Aug, fr. Sep–Oct.
Grassy mountain slopes; 3000–3600 m. Gansu, Hubei, Shaanxi, Sichuan.
This taxonomic boundaries between this species and Pleurospermum hookeri var. thomsonii are unclear as the character of obsolete calyx teeth is not reliable and the degree of dissection of the bracteoles is somewhat variable. All parts of the plant are used medicinally to cure stomach ache (in Shaanxi).