五匹青Pternopetalum vulgare (Dunn) Hand.-Mazz.

别名：囊瓣芹;踵瓣芹;鸭脚板;五匹青囊瓣芹;紫金沙;紫金砂;鹅脚板;

科名：伞形科 Umbelliferae

属名：囊瓣芹属 Pternopetalum

《中国植物志》第55(2)卷041页
  1．五匹青（四川宝兴）
  Pternopetalum vulgare (Dunn) Hand. -Mazz. Symb. Sin. 7: 719. 1933; Shan in Sinensia 11: 156. 1940; P. K. Mukherjee in Act. 2nd. Symp. Intern. Umbell. 62. 1977; 单人骅、溥发鼎, 植物分类学报16 (3): 68. 19 78; 秦岭植物志1 (3): 398. 1981.——Cryptotaeniopsis vulgaris Dunn in Hook. Icon. Pl. 28: t. 2737. 1902. pro parte et in Journ. Linn. Soc. Bot. 35: 494. 1903; de Boiss. in Bull. Herb. Boiss. 2 (2): 806. 1902. pro parte, et in Bull. Soc. Bot. France 53: 427. 1906; Wolff in Engl. Pflanzenr. 90 (IV. 228): 176. 1927. pro parte; Dunn in Not. Bot. Gard. Edinb. 17: 15. 1929.

《Flora of China》 Vol. 14 (2005)
Pternopetalum vulgare  (Dunn) Handel-Mazzetti
五匹青   wu pi qing
Plants 20–50 cm. Stems solitary or 2–3. Basal leaves petiolate, petioles 10–20 cm, glabrous or strigose; blade triangular-ovate in outline, 5–12 × 5–11 cm, ternate; leaflets 3, lateral leaflets usually 2–3-lobed; ultimate segments ovate or rhomboidal, 1.6–6 × 0.6–3.8 cm, glabrous or strigose along veins, margins serrate, apex acute. Umbels 1.5–3 cm across (to 7 cm in fruit); bracts absent; rays 15–30, 2–4(–6) cm; bracteoles 1–4, ca. 0.5 mm, subequal; umbellules 2–5-flowered; pedicels 0.3–1.5 mm in flower. Calyx teeth triangular, 0.5–0.7 mm. Petals white or purple-white, ca. 1.8 × 0.7 mm. Stylopodium conic; styles elongate; stylopodium plus styles ca. 1.3 mm. Fruit globose-ovoid or oblong-ovoid, 3.5–5 × 2–3 mm; ribs denticulate; vittae 1–3 in each furrow, 2–4 on commissure. Fl. Apr–Jun, fr. Jul–Sep.
Forests, grassy slopes, shady or grassy streamsides; 1300–3500 m. S Gansu, Guizhou, Hubei, Hunan, Shaanxi, Sichuan, Yunnan [NE India, N Myanmar, Nepal].
All three varieties have reputed medicinal value (in Sichuan).