《中国植物志》|| 伞形科 UMBELLIFERAE ||当归属 Angelica L. ||东当归 Angelica acutiloba (Sieb. & Zucc.) Kitag.

23. 东当归 延边当归、日本当归（吉林）图版21
Angelica acutiloba (Sieb. et Zucc.) Kitagawa in Bot. Mag. Tokyo 51: 658. 1937; Ohwi, Fl. Jap. 682. 1965; Hiroe et Constance, Umbell. Jap. 105, f. 53. 1958; 东北草本植物志6: 256. 1977; Yuan et Shan in Bull. Nanjing Bot. Gard. Mem. Sun Yat-Sen 1983.: 12. ——Ligusticum acutilobum Sieb. et Zucc., Pl. Jap. Fam. Nat. 2: 203. 1845; Forbes. et Hemsl. in Journ. Linn. Soc. Bot. 23: 332. 1888; de Boiss. in Bull. Herb. Boiss. 2 (3): 953, 956. 1903; Diels, Fl. Tsin. Ling Shan, 83. 1905; Makino, Ill. Fl. Jap. 273. 1953.
多年生草本。根长10-25厘米，径1-2.5厘米，有多数支根，似马尾状，外表皮黄褐色至棕褐色，气味浓香。茎充实，高30-100厘米，绿色，常带紫色，无毛，有细沟纹。叶一至二回三出羽状分裂，膜质，上表面亮绿色，脉上有疏毛，下表面苍白色，末回裂片披针形至卵状披针形，3裂，长2-9厘米，宽1-3厘米，无柄或有短柄，先端渐尖至急尖，基部楔形或截形，边缘有尖锐锯齿；叶柄长10-30厘米，基部膨大成管状的叶鞘，叶鞘边缘膜质；茎顶部的叶简化成长圆形的叶鞘。复伞形花序，花序梗、伞辐、花柄无毛或有疏毛，花序梗长5-20厘米；总苞片1至数个，有时无，线状披针形或线形，长1-2厘米；小总苞片5-8，线状披针形或线形，无毛，长5-15毫米，常比花长；小伞花序有花约30朵；花白色；萼齿不明显；花瓣倒卵形至长圆形；子房无毛；花柱长为花柱基的3倍。果实狭长圆形，略扁压，长4-5毫米，宽1-1.5毫米，背棱线状，尖锐，侧棱狭翅状，较背棱宽，较果体狭，棱槽内有油管3-4，合生面油管4-8。花期7-8月，果期8-9月。
模式标本产于日本中部横须贺近郊。
我国吉林省延边朝鲜族自治州的延吉、珲春、和龙等县栽培作“当归”使用已有长久的历史。日本和朝鲜以本种称当归，栽培入药。功效与我国产当归类似，主治月经不调，经来腹痛，腰痛、崩漏，大便干燥，痢疾腹痛等症。

《Flora of China》|| Apiaceae || Angelica ||东当归 Angelica acutiloba

34. Angelica acutiloba (Siebold & Zuccarini) Kitagawa, Bot. Mag. (Tokyo). 51: 658. 1937.

东当归 dong dang gui

Ligusticum acutilobum Siebold & Zuccarini, Pl. Jap. Fam. Nat. 2: 203. 1845.

Plants perennial, 30–100 cm. Root yellow-brown, 10–25 × 1–2.5 cm, strongly aromatic. Stem solid, purplish, thinly ribbed. Basal and lower leaves petiolate, petioles 10–30 cm, sheaths oblong; blade triangular-ovate, 10–25 cm, 1–2-ternate-pinnate, glabrous; pinnae short-petiolulate, 2–9 × 1–3 cm, 3-lobed, segments lanceolate, margin irregularly acute-serrate, apex acuminate to acute; peduncles 5–20 cm, glabrous or pubescent; bracts absent or 1 to several, linear-lanceolate, 1–2 cm; rays 18–30, unequal, pubescent; bracteoles 5–8, linear, 5–15 mm; umbellules ca. 30-flowered; pedicels slender. Calyx teeth obsolete. Petals white, obovate to oblong. Fruit narrow-oblong, 4–5 × 1–1.5 mm; dorsal ribs filiform, lateral ribs narrow-winged; vittae 3–4 in each furrow, 4–8 on commissure. Fl. Jul–Aug, fr. Aug–Sep.

Cultivated; ca. 400 m. Jilin [native to Japan and Korea].

The roots are used in Jilin as a regional substitute for the traditional Chinese medicine “dang gui” (see Angelica sinensis).