别名：地枸叶;琴娃音-好日;竹格叉;气死大夫草;瘤果地构菜;瘤果地沟叶;发饱草;铁线草;地构菜;瘤果地构叶;瘤果地枸菜;瘤果地构草;地海透骨草;透骨草;疣果地枸叶;海地透骨草;珍珠透骨草;瘤果地沟菜;地沟叶;地杨叶;疣果地沟菜;珍透透骨草;铁梅达兰图鲁;疣果地构叶;

科名：大戟科 Euphorbiaceae

属名：地构叶属 Speranskia

《中国植物志》第44(2)卷008页
  3. 地构叶 珍珠透骨草（江苏），瘤果地构叶（山东、甘肃）图版2: 9-13
  Speranskia tuberculata (Bunge) Baill. Etud. Gen. Euphorb. 389. 1858; Fort. Et Hemsl. in journ. Linn. Soc. Bot. 26: 436. 1894; Pamp. in Nouv. Giorn. Hot. Ital. new ser. 17: 415. 1910; Pax et Hoffm. in Engl. Pflanzenr. 57 (N. 147. l7): 15, f. 3. D. 1912; 中国高等植物图鉴2: 595, 图2919. 1972; 湖北植物志2: 370,图1271.1979; 秦岭植物志1 (3): 169,图145. 1981; 江苏植物志 (下册): 416, 图1418. 1982; S. M. Hwang in Bull. Bot. Res., (4): 40. 1989. ——Croton tuberculatus Bunge in Mem. Soc. Etrang. Petersb. 2: 134. 1835.——Argyrothamnia tuberculata (Bunge) Muell. Arg. in Linnaea 34: 144. 1865, et in DC. Prodr. 15 (2): 734. 1866. ——Speranskia pekinensis Pax et Hoffm. op. cit. 15, f, 3. E. 1912
  多年生草本；茎直立，高25-50厘米，分枝较多，被伏贴短柔毛。叶纸质，披针形或卵状披针形，长1.8-5.5厘米，宽0.5-2.5厘米，顶端渐尖，稀急尖，尖头钝，基部阔楔形或圆形，边缘具疏离圆齿或有时深裂，齿端具腺体，上面疏被短柔毛，下面被柔毛或仅叶脉被毛；叶柄长不及5毫米或近无柄；托叶卵状披针形，长约1.5毫米。总状花序长6-15厘米，上部有雄花20-30朵，下部有雌花6-10朵，位于花序中部的雌花的两侧有时具雄花1-2朵；苞片卵状披针形或卵形，长1-2毫米；雄花：2-4朵生于苞腑，花梗长约1毫米；共萼裂片卵形，长约1.5毫米，外面疏被柔毛；共瓣倒心形，具爪，长约0.5毫米，被毛；雄蕊8-12（-15）枝，花丝被毛；雌花：1-2朵生于苞腋，花梗长约1毫米，果时长达5毫米，且常下弯；花萼裂片卵状披针形，长约1.5毫米，顶端渐尖，疏被长柔毛，花瓣与雄花相似，但较短，疏被柔毛和缘毛，具脉纹；花柱3，各2深裂，裂片呈羽状撕裂。蒴果扁球形，长约4毫米，直径约6毫米，被柔毛和具瘤状突起；种子卵形，长约2毫米，顶端急尖，灰褐色。花果期5-9月。
  产于辽宁、吉林、内蒙古、河北、河南、山西、陕西、甘肃、山东、江苏、安徽、四川。生于海拔800-1 900米山坡草丛或灌丛中。模式标本采自北京郊区。

《Flora of China》 Vol. 11 (2008)
Speranskia tuberculata  (Bunge) Baillon
地构叶   di gou ye
Croton tuberculatus Bunge, Enum. Pl. China Bor. 60. 1833; Argyrothamnia tuberculata (Bunge) Müller Argoviensis; Speranskia pekinensis Pax & K. Hoffmann; S. tuberculata var. pekinensis (Pax & K. Hoffmann) Hurusawa.
Perennial herbs, 25-50 cm tall, few branched; stems appressed pubescent. Stipules ovate-lanceolate, ca. 1.5 mm; petiole 1-4 mm; leaf blade lanceolate to ovate-lanceolate, 1.5-5.5 × 0.5-2.5 cm, papery, abaxially pubescent or pilose along veins, adaxially pilose, base broadly cuneate or obtuse, margin crenate or incised-dentate, apex acuminate, rarely acute. Inflorescence 6-15 cm, pubescent; bracts ovate or ovate-lanceolate, 1.5-3 mm. Male flowers 2-4 per bract; pedicels ca. 1 mm; sepal ovate, ca. 1.5 mm; petals orbicular-obovate or obcordate, ca. 0.5 mm; stamens 8-15; filaments pilose; disk glands 5. Female flowers 1 or 2 per bract, sometimes with 1 or 2 male flowers; sepals ovate-lanceolate, ca. 1.5 mm, pubescent; petals orbicular-obovate or obovate, ca. 0.5 mm; ovary pubescent, verrucose; styles 3, short, 2-lobed, plumose-lacerate. Fruiting pedicels 3-5 mm; capsule 3-lobed, ca. 6 mm in diam., usually sparsely verrucose and pilose. Seeds ovoid, 2-2.5 mm, brownish. Fl. and fr. May- Sep.
● Grassy slopes, grasslands, thickets, usually in dry places; 300-1900 m. Anhui, Gansu, Hebei, Henan, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Sichuan.