《中国植物志》|| 蓼科 POLYGONACEAE ||酸模亚属 Subgen. Acetosa (Mill.) Rech. f. ||酸模 Rumex acetosa L.

3.酸模（本草纲目）遏蓝菜、酸溜溜 图版36:5-8
Rumex acetosa L. Sp. Pl. 337. 1753; Forb. et Hemsl. in Journ. Linn. Soc. Bot. 26: 355. 1891; Hand.-Mazz. Symb. Sin. 7: 169. 1929; Kung in Fl. Ill. N. Chine 5: 17. pl. 4. 1936. excl syn.: R. thyrsiflorus Fingerh.; Rech. f. in Candollea 12: 24. 1949; Qhwi, Fl. Jap. 459. 1956; 东北草本植物志2: 23.图345. 1959; 秦岭植物志1 (2): 136. 1974;湖北植物志1: 253.图345. 1976; 西藏植物志1: 602. 1983; Borod. in Pl. Asiae Centr. 9: 79. 1989.——Acetosa pratensis Mill. Gard. Dict. ed. 8, 1. 1768.
多年生草本。根为须根。茎直立，高40-100厘米，具深沟槽，通常不分枝。基生叶和茎下部叶箭形，长3-12厘米，宽2-4厘米，顶端急尖或圆钝，基部裂片急尖，全缘或微波状；叶柄长2-10厘米；茎上部叶较小，具短叶柄或无柄；托叶鞘膜质，易破裂。花序狭圆锥状，顶生，分枝稀疏；花单性，雌雄异株；花梗中部具关节；花被片6, 成2轮，雄花内花被片椭圆形，长约3毫米，外花被片较小，雄蕊6;雌花内花被片果时增大，近圆形，直径3.5-4毫米，全缘，基部心形，网脉明显，基部具极小的小瘤，外花被片椭圆形，反折，瘦果椭圆形，具3锐棱，两端尖，长约2毫米，黑褐色，有光泽。花期5-7月，果期6-8月。
产我国南北各省区。生山坡、林缘、沟边、路旁，海拔400-4100米。朝鲜、日本、高加索、哈萨克斯坦、俄罗斯、欧洲及美洲也有。
全草供药用，有凉血、解毒之效；嫩茎、叶可作蔬菜及饲料。

《云南植物志》|| 蓼科 Polygonaceae ||酸模属 Rumex L. ||酸模 Rumex acetosa L.

3. 酸模（日华本草，本草纲目）
遏蓝菜（植物名实图考）
Rumex acetosa L. (1753); Meisn. in DC. (1857); Forb. et Hemsl. (1891); Diels (1912); Samuelsson in Hand.-Mazz. (1929); 图鉴 (1972)*; 西藏植物志 (1983); 云南种子植物名录 (1984); 中国植物志 (1998)*.
Acetosa pratensis Mill. 1768.
多年生草本，高40—100厘米。根为须根。茎直立，具深沟槽，通常不分枝，基生叶和茎下部叶箭形，先端急尖或圆钝，基部裂片急尖，长3—12厘米，宽2—4厘米，全缘或微波状；叶柄长2—10厘米；茎上部叶较小，具短叶柄或无柄；托叶鞘膜质，易破裂。花序狭圆锥状，顶生，分枝稀疏；花梗中部有关节；花单性，雌雄异株；花被片6，成2轮，雄花：内花被片椭圆形，长约3毫米，外花被片较小，雄蕊6；雌花：直径3.5—4毫米，内花被片果期增大，近圆形，基部心形，全缘，网脉明显，基部具极小的小瘤，外花被片椭圆形，反折，瘦果椭圆形，具3锐棱，两端尖，长约2毫米，黑褐色，有光泽。花期5—9月，果期6—9月。
产会泽、中甸、维西、丽江、鹤庆；生于海拔2500—4000米的高山草地、山谷、石坡、林缘、竹林中等处。我国南北各省区均有分布。朝鲜、日本、高加索、哈萨克斯坦、俄罗斯（欧洲部分、西伯利亚、远东）、欧洲及美洲也有。
全草供药用，有凉血、解毒之效；嫩茎、叶可作蔬菜及饲料。

《Flora of China》|| Polygonaceae || Rumex ||酸模 Rumex acetosa

3. Rumex acetosa Linnaeus, Sp. Pl. 1: 337. 1753.
[nom. cons.]

酸模 suan mo

Acetosa pratensis Miller.

Herbs perennial, dioecious, with a short and relatively thin horizontal or slightly oblique rootstock, usually not reaching deep into substrate and with rather crowded secondary roots. Stems erect, 40-100 cm tall, grooved, glabrous, usually simple. Basal leaves ovate-lanceolate to lanceolate, base sagittate, 3-12 × 2-4 cm, margin entire, apex acute, basal lobes acute at apices; cauline leaves small; petiole short or nearly absent; ocrea fugacious, white, membranous. Inflorescence terminal, paniculate, lax; branches reddish green, slender, simple or with a few secondary branches. Flowers unisexual. Pedicel slender, articulate at middle. Male flowers: outer tepals erect, small; inner tepals elliptic, ca. 3 mm. Female flowers: outer tepals elliptic, reflexed in fruit; inner tepals enlarged in fruit; valves nearly orbicular (to broadly ovate), 3.5-4 mm in diam., with small recurved tubercles at base of valves, net veined, base cordate, margin entire, apex obtuse. Achenes blackish brown, shiny, ellipsoid, trigonous, ca. 2 mm. Fl. May-Jul, fr. Jun-Aug. 2n = 14*, 15*, 22*.

Mountain slopes, forest margins, moist valleys; 400-4100 m. ?Anhui, ?Fujian, ?Guangxi, ?Guizhou, Heilongjiang, ?Henan, Hubei, ?Hunan, Jiangsu, Jilin, Liaoning, Nei Mongol, Qinghai, ?Shaanxi, ?Shandong, ?Shanxi, Sichuan, Taiwan, Xinjiang, Xizang, Yunnan, ?Zhejiang [Japan, Kazakhstan, Korea, Kyrgyzstan, Mongolia, Russia; Europe, North America].

《Flora of North America》|| Polygonaceae || Rumex || Rumex acetosa

7. Rumex acetosa Linnaeus, Sp. Pl. 1: 337. 1753.

Common or garden sorrel, sourdock, grande oseille

Acetosa pratensis Miller; Rumex acetosa subsp. pratensis (Miller) A. Blytt & O. C. Dahl

Plants perennial, glabrous or nearly so, with short and relatively thin, horizontal or slightly oblique rootstock (usually not reaching deep into substrate) and ± crowded 2d-order roots. Stems erect or rarely ascending, 1 to several from base, branched in distal 2 (in inflorescence), (25-)30-90(-110) cm. Leaves: ocrea normally laciniate; blade oblong-ovate, ovate-lanceolate, to lanceolate, 4-10(-15) × 1-4(-6) cm, normally more than 2.5 times as long as wide, base sagittate (with acute lobes directed downward, ± parallel to petiole), margins entire, normally flat, apex acute or subacute. Inflorescences terminal, occupying distal 3 of stem, usually lax and interrupted especially in proximal part, narrowly paniculate, cylindric (with 1st-order branches simple, or with few 2d-order branches). Pedicels articulated near middle, filiform, 2-5(-6) mm, articulation distinct. Flowers (2-)4-8(-10) in whorls; inner tepals orbiculate, occasionally broadly ovate, 3-4(-5) × 3-4 mm, base rounded or cordate, apex obtuse; tubercles small or occasionally absent. Achenes black to dark brown, 1.8-2.5 × 1.2-1.5 mm, shiny, smooth. 2n = 14 (pistillate plants), 15 (staminate plants).

Flowering spring-early summer. Waste places, meadows, cultivated fields, alluvial habitats; 0-1000 m; introduced; St. Pierre and Miquelon; Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld)., N.S., Ont., Que., Sask.; Alaska, Conn., Maine., Mass., Mich., Minn., N.H., N.Y., Oreg., Pa., Vt.; Europe; nw Africa; Asia.

Rumex acetosa is morphologically uniform in North America. It sometimes is misidentified as R. hastatulus orR. acetosella. Collections from North America are few in herbaria, and this species probably is not as common in the flora area as has been generally assumed. Some literature reports for R. acetosa may refer to other taxa of the species group.