柔弱斑种草Bothriospermum tenellum (Hornem.) Fisch. et Mey.

别名：细累子草;细茎斑种草;细叠子草;

科名：紫草科 Boraginaceae

属名：斑种草属 Bothriospermum

《中国植物志》第64(2)卷218页
  5. 柔弱斑种草（广州植物志）
  Bothriospermum tenellum (Hornem.) Fisch. et Mey. Ind. Sem. Hort. Petrop. 1: 24. 1835; Maxim. in Bull. Acad. Sci. St. Petersb. 17: 455. 1872; Clarke in Hook. f. Fl. Brit. Ind. 4: 167. 1883; Forb. et Hemsl. in Journ. Linn. Soc. Bot. 26: 152. 1890; Gagnep. et Cour. in Lecomte, Fl. Gen. Indo-chine 4: 223. 1914; Y. Z. Sun in Contr. Biol. Lab. Sci. Soc. China Bot. ser. 10: 48. 1935; Hand. -Mazz. Sym. Sin. 7: 824. 1936; Kitag. Lineam. Fl. Mansh. 368. 1939; Hara, Enum. Sperm. Jap. 1: 171. 1948; M. Pop. in Fl. URSS 19: 236. 1953; 广州植物志569. 图304. 1956; 江苏南部种子植物手册620. 图1006. 1959; 中国高等植物图鉴3: 571. 图5095. 1974; J. Y. Hsiao in Fl. Taiwan 4: 393. 1978. ——Anchusa tenellum Hornem. in Hort. Bot. Hafn. 1: 176. 1813. ——A. zeylanica Jacq. f. Eclog. Pl. 1: 47. pl. 29. 1812.——Bothriospermum asperugoides Sieb. et Zucc. in Abh. Akad. Muensh. 4(3): 150. 1846. ——B. tenellum var. asperugoides (Sieb. et Zucc. ) Maxim. in Bull. Acad. sci. St. Petersb. 17: 455. 1872.
  一年生草本，高15-30厘米。茎细弱，丛生，直立或平卧，多分枝，被向上贴伏的糙伏毛。叶椭圆形或狭椭圆形，长1-2.5厘米，宽0.5-1厘米，先端钝，具小尖，基部宽楔形，上下两面被向上贴伏的糙伏毛或短硬毛。花序柔弱，细长，长10-20厘米；苞片椭圆形或狭卵形，长0.5-1厘米，宽3-8毫米，被伏毛或硬毛；花梗短，长1-2毫米，果期不增长或稍增长；花萼长1-1.5毫米，果期增大，长约3毫米，外面密生向上的伏毛，内面无毛或中部以上散生伏毛，裂片披针形或卵状披针形，裂至近基部；花冠蓝色或淡蓝色，长1.5-1.8毫米，基部直径1毫米，檐部直径2.5-3毫米，裂片圆形，长宽约1毫米，喉部有5个梯形的附属物，附属物高约0.2毫米；花柱圆柱形，极短，长约0.5毫米，约为花萼1/3或不及。小坚果肾形，长1-1.2毫米，腹面具纵椭圆形的环状凹陷。花果期2-10月。
  产东北、华东、华南、西南各省区及陕西、河南、台湾。生海拔300-1900米山坡路边、田间草丛、山坡草地及溪边阴湿处。朝鲜、日本、越南、印度、巴基斯坦及苏联中亚地区有分布。
  多苞斑种草B．secundum Maxim. 与本种近似，但茎具开展的硬毛及伏毛；苞片多数，与花依次排列，各偏于一侧而与本种相区别。

《Flora of China》 Vol. 16 (1995)
Bothriospermum zeylanicum  (J. Jacquin) Druce
柔弱斑种草   rou ruo ban zhong cao
Anchusa zeylanica J. Jacquin, Ecl. Pl. Rar. 1: 47, t. 29. 1812; A. tenellum Hornemann; Bothriospermum asperugoides Siebold & Zuccarini; B. tenellum (Hornemann) Fischer & C. A. Meyer; B. tenellum var. asperugoides (Siebold & Zuccarini) Maximowicz.
Herbs annual, 15-30 cm tall. Stems slender, crowded, erect or prostrate, much branched, appressed hispid. Leaf blade elliptic to narrowly elliptic, 1-2.5 cm × 5-10 mm, sparsely short appressed bristly or strigose, base broadly cuneate, apex obtuse, mucronulate. Racemes numerous, lax after anthesis; lower bracts few, lanceolate, 1.5-5 mm, apex acute; upper bracts very small. Pedicel 1-2 mm, not elongated or somewhat elongated in fruit. Calyx 1-1.5 mm, to 3 mm in fruit, with short ascending white bristles. Corolla blue or pale blue, 1.5-1.8 mm, base ca. 1 mm wide, slightly longer than calyx; throat appendages ca. 0.2 mm; limb 2.5-3 mm wide; lobes orbicular, ca. 1 mm. Style terete, ca. 0.5 mm. Nutlets gray, oval-reniform, 1-1.2 mm, aperture longitudinally elliptic. Fl. and fr. Feb-Oct.
Grain fields, hillside meadows, river banks, shaded moist areas. Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hebei, Heilongjiang, Hunan, Jiangxi, Jilin, Liaoning, Nei Mongol, Ningxia, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang [Afghanistan, India, Indonesia (Java, naturalized), Japan, Kazakhstan, Korea, Kyrgyzstan, Pakistan, Russia, Tajikistan, Turkmenistan, Uzbekistan, Vietnam].