松潘棱子芹Pleurospermum franchetianum Hemsl.

别名：异伞棱子芹;黄姜;异伞稜子芹;黄羌;异叶棱子芹;棱子芹;加哇;早羌;

科名：伞形科 Umbelliferae

属名：棱子芹属 Pleurospermum

《中国植物志》第55(1)卷172页
  25. 松潘棱子芹（拟）异伞棱子芹（中国高等植物图鉴）黄羌（陕西太白）图版89
  Pleurospermum franchetianum Hemsl. in Journ. Linn. Soc. Bot. 29: 307. 1892; et in Hook. Icon. Pl. 2244. 1894; Diels in Engl. Bot. Jahrb. 29: 492. 1903; de Boiss. in Bull. Herb. Boiss. II, 3 (10): 847. 1903; Wolff in Fedde Repert. Sp. Nov. Beih. 12: 447. 1922; Norman in Journ. Arn. Arb. 14: 24. 1933; Shan in Sinensia 8; 90. 1937; 中国高等植物图鉴2: 1061. 图3852. 1972. ——P. pilgerianum Fedde ex Wolff Fedde in Repert. Sp. Nov. 27: 121. 1929. ——P. rockii Fedde ex Wolff in Fedde Repert. Sp. Nov. 27: 120. 1929.
  二年生或多年生草本，高40-70厘米。根圆锥状，暗褐色，下部少有分枝。茎直立，粗壮，中空，基部直径5-12毫米，有条棱，不分枝。基生叶和茎下部叶有长柄，叶柄基部扩展呈膜质鞘状；叶片轮廓卵形，长7-10厘米，近三出式3回羽状分裂，末回裂片披针状长圆形，长1-2.5厘米，宽3-5毫米，边缘有不整齐缺刻，沿叶脉和边缘微被粗糙毛；茎上部的叶简化，无柄，仅托以叶鞘。顶生复伞形花序有短的花序梗，花都能育；侧生复伞形花序有长花序梗，花不育；总苞片8-12，狭长圆形，顶端3-5裂，边缘白色；伞辐多数，长3.5-7厘米；小总苞片8-10，匙形，长10-15毫米，全缘或顶端3浅裂，有宽的白色边缘；花多数，花柄长6-10毫米；花瓣白色，倒卵形，长约1毫米，基部明显有爪；花药暗紫色。果实椭圆形，长4-5毫米，表面密生水泡状微突起，主棱波状，侧棱翅状，每棱槽中有油管1，合生面2。花期7-8月，果期9月。
  产陕西，甘肃，宁夏，青海，湖北，四川等省区。生于海拔2500-4300米的高山坡或山梁草地上。模式标本采自四川康定。

《Flora of China》 Vol. 14 (2005)
Pleurospermum franchetianum  Hemsley
松潘棱子芹   song pan leng zi qin
Plants 40–70 cm. Root conic, branched. Stem hollow, ribbed, base 5–12 mm thick. Basal and lower leaves long-petiolate, sheaths narrow-oblong; blades ovate, 7–18 × 5–15 cm, 3-ternate-pinnate; pinnae 5–7 pairs, proximal pinnae petiolulate; ultimate segments oblong-lanceolate, 10–25 × 2–5 mm, hirtellous along nerves and margins otherwise glabrous, irregularly incised. Leaves gradually reduced upwards. Terminal umbels fertile, 8–17 cm across, peduncle 2–4 cm, overtopped by the sterile lateral umbels (when present), peduncles to 14 cm; bracts 8–12, oblong-ovate to spatulate, 1.5–3 cm, broadly white-margined to the first lobes, apex 3–5-lobed; rays 12–28, 3.5–7 cm, unequal, smooth; bracteoles 8–10, oblong-elliptic to spatulate, 10–15 mm, apex entire or shortly 3-lobed; pedicels numerous, 6–10 mm. Calyx teeth obsolete. Petals obovate, white, ca. 1 mm. Anthers dark purple. Stylopodium short-conic. Fruit oblong-ovoid, 4–6 × ca. 3 mm; dorsal ribs sinuolate-winged, lateral ribs plane-winged; vittae 1 in each furrow, 2 on commissure. Fl. Jul–Aug, fr. Sep.
Alpine grasslands, river banks; 2500–4300 m. Gansu, Hubei, Ningxia, Qinghai, Shaanxi, Sichuan.
This species is similar to, and sometimes treated as conspecific with, Pleurospermum davidii (here a synonym of P. benthamii). It is here distinguished by the more finely divided leaves (ultimate segments to 5 mm wide), hirtellous along the margin, the smaller fruits (less than 6 mm), and the terminal umbel overtopped by the staminate lateral umbels. It has reputed medicinal value (in Sichuan).