《中国植物志》|| 伞形科 UMBELLIFERAE ||当归属 Angelica L. ||牡丹叶当归 Angelica paeoniifolia Shan & C. C. Yuan

28. 牡丹叶当归（植物分类学报）图版26
Angelica paeoniifolia Shan et Yuan in Act. Phytotax. sin. 18 (3): 378. 1980; Yuan et Shan in Burl-Nanjng. Bot. Gard. Mem. Sun. Yat-Sen 1983: 12; 西藏植物志3: 511. 1986.
多年生草本。根长圆柱形，粗1-2厘米，外皮棕褐色，断面黄白色，疏松，纤维性，有香气。茎直立，高60-150厘米，粗0.5-1厘米，带紫红色，有细纵沟纹，光滑无毛。叶一至二回三出式羽状分裂，根生叶与茎生叶形状相同，叶片三角状卵形，长10-15厘米，宽13-18厘米，叶柄长5-15厘米，基部膨大成管状鞘，宽1-1.5厘米，厚膜质，带紫红色，光滑无毛，或有稀疏的白色粉粒，两面无毛；羽片2-3对；末回裂片位于下部的有短柄，上部的无柄，长卵形，常3深裂，长2-4厘米，宽1-3厘米，表面淡绿色，背面灰绿色，两面光滑无毛，顶端尖锐，基部楔形，边缘有锯齿3-5；茎顶部叶多简化成短管状叶鞘。复伞形花序，花序梗长10-15厘米，无毛；伞辐17-30；总苞片3至数个，线状披针形，膜质；伞形花序有花14-26；小总苞片4-8，线形，膜质，与花柄等长式略短，花柄无毛或稍有短糙毛；花黄绿色或微带紫色，萼齿不明显，花瓣卵圆形，顶端稍凹入，花柱短而外折，花柱基扁圆锥形。果实长圆形，长5-7毫米，宽3-4毫米，背棱线形，稍隆起，侧棱宽翅状，薄膜质，比果体狭，棱槽中有油管1，合生面油管2。花期6-8月，果期7-9月。
产我国西藏（比如、索县、波密、林芝、米林、丁青）。生长于海拔3500-4200米的河边石砾草丛、林下和灌丛中。模式标本采自波密。

《Flora of China》|| Apiaceae || Angelica ||牡丹叶当归 Angelica paeoniifolia

35. Angelica paeoniifolia C. Q. Yuan & R. H. Shan, Acta Phytotax. Sin. 18: 378. 1980.

牡丹叶当归 mu dan ye dang gui

Plants perennial, 60–150 cm. Root cylindric, brown, 1–2 cm thick, aromatic. Stem purplish, thinly ribbed. Basal and lower leaves petiolate, petioles 5–15 cm, sheaths 1–1.5 cm wide; blade broadly triangular-ovate, 10–15 × 13–18 cm, 2–3-ternate-pinnate, glabrous; leaflets short-petiolulate or sessile, ovate or rhombic-ovate, 2–4 × 1–3 cm, base cuneate, margin 3–5-coarse-toothed, apex acute. Peduncles 10–15 cm; bracts 3 to several, linear-lanceolate; rays 17–30, unequal; bracteoles 4–8, linear, scarious, nearly as long as pedicels; umbellules 14–20-flowered; pedicels glabrous or scabrous. Calyx teeth obsolete. Petals yellowish green or purplish, ovate. Fruit ellipsoid, 5–7 × 3–4 mm; dorsal ribs filiform, lateral ribs winged, wings narrower than the body; vittae 1 in each furrow, 2 on commissure. Fl. Jun–Aug, fr. Jul–Sep.

Shrubby thickets, gravelly grasslands, river banks; 3500–4200 m. Xizang.

The roots have reputed medicinal properties.