《中国植物志》|| 茜草科 RUBIACEAE ||钩藤属 Uncaria Schreber nom. cons. ||攀茎钩藤 Uncaria scandens (Sm.) Hutch.

11. 攀茎钩藤（药学学报）
Uncaria scandens (Smith) Hutchins. in Sargent, Pl. Wils. 3: 11. 1916; Chung in Mem. Sci. Soc. China 1: 235. 1924; Merr. in Lingnan Sci. Journ. 11: 59. 1932; Rehd. in Journ. Arn. Arb. 16: 391. 1935; Metcalf in Journ. Arn. Arb. 26: 204. 1945; How in Acta Pharm. Sinica 4: 11. 1956; 海南植物志3: 290, 图728. 1974; 中国高等植物图鉴4: 189, 图5791. 1975; Ridsd. in Blumea 24 (1): 94. 1978; 徐祥浩等, 华南农学院学报2 (3): 28. 1981; 西藏植物志4: 427, 图184 (1-5). 1985. ——Nauclea scandens Smith in Rees Cycl. 24: 9. 1813.——Uncaria wangii How in Sunyatsenia 6: 261, Pl. 42. 1946 et in Acta Pharm. Sinica 4 (1): 12. 1956; 中国高等植物图鉴4: 190, 图7594. 1975.
大藤本，嫩枝较纤细，方柱形或略有4棱角，密被锈色短柔毛。叶纸质，卵形、卵状长圆形、椭圆形或椭圆状长圆形，长10-15厘米，宽5-7厘米，顶端短尖至渐尖，基部钝圆至近心形，罕有短尖至楔形，全缘，上面有疏散糙伏毛，下面被或疏或密的糙伏毛；侧脉7-20对，脉腋窝陷有粘液毛；叶柄长3-6毫米，有硬毛；托叶阔卵形，深2裂，裂片披针形，长5-6毫米，外面有糙伏毛，内面无毛或疏被短柔毛，基部有粘液毛。头状花序不计花冠直径25毫米，单生叶腋，花序梗具一节，苞片长9毫米，或成单聚伞状排列，总花序梗腋生，长3-7厘米；小苞片线形或线状匙形，疏被毛；花近无梗；花萼管长2-3毫米，密生灰白色硬毛或短柔毛，萼裂片线形至线状匙形，密被短柔毛，顶端钝，约与花萼管等长；花冠淡黄色，花冠管纤细，长8-10毫米，外被柔毛，花冠裂片长倒卵形，顶端圆，长约2毫米，外被短柔毛；花柱伸出冠喉外，长10-12毫米，柱头长纺锤形；果序直径20-25毫米；小蒴果无柄，长约11毫米，倒披针状长圆锥形，疏被长柔毛，干后有纵棱；种子橙黄色，两端有白色膜质翅，下方的翅2深裂。花期夏季。
产于广东、海南、广西、云南、四川及西藏；生于山地疏林下，在西藏墨脱生于海拔1300米的山坡阔叶林内。

《云南植物志》|| 茜草科 Rubiaceae ||钩藤属 Uncaria Schreber, nom. conserv. ||攀茎钩藤 Uncaria scandens (Smith) Hutch. in Sargent

8.攀茎钩藤（药学学报） 图版23: 5—7
倒钩风、鹰爪风（图鉴），“槐面枉”（傣语）
Uncaria scandens (Smith) Hutch. in Sargent (1916); C. E. Ridsdale (1978); H. H. Hsue et H. Wu (1981); 云南种子植物名录 (1984); 横断山区维管植物 (1994); 中国植物志 (1999).
Nauclea scandens Smith in Rees (1819); Uncaria pilosa Roxb (1814), nom. nud., (1824); Hook. f. (1880); Pitard in Lecte. (1922); Yamazaki in Hara (1966); Cephalanthus cavaleriei Lévl. (1912), (1915); Uncaria wangii How (1946)*, (1956); 图鉴 (1975)*.
大藤本。嫩枝密被锈色短柔毛。叶对生，纸质，卵形、卵状长圆形、椭圆形或长圆形，长10—15厘米，宽5—7厘米，先端短尖或渐尖，基部钝圆或近心形，稀短尖或楔形，叶面有疏糙伏毛，背面被疏或密的糙伏毛，侧脉7—10对，脉腋窝陷有黏液毛，叶柄长3—6毫米，有硬毛；托叶阔卵形，2深裂，裂片披针形，长5—6毫米，外面有糙伏毛，内面无毛或被疏短柔毛，基部有黏液毛。头状花序不计花冠直径2.5厘米，单生于叶腋，总花梗具一节，苞片长9毫米，或成单聚伞状排列，总花梗长3—7厘米；小苞片线形或线状匙形，被疏柔毛；花近无梗；萼管长2—3毫米，密被灰白色硬毛或短柔毛，萼裂片5，线形或线状匙形，密被短柔毛，约与萼管等长；花冠淡黄色，长8—10毫米，外面被柔毛，花冠裂片5，长倒卵形，长约2毫米，外面被短柔毛；花柱伸出，长1—1.2厘米，柱头纺锤形；果序直径2—2.5厘米；小蒴果无柄，长约1.1厘米，倒披针状长圆形，疏被长柔毛，干后有纵棱；种子橙黄色，两端有白色膜质翅，下方的翅2深裂。花期夏季，果期5—10月。
产贡山、福贡、麻栗坡、西畴、富宁、屏边、河口、金平、景东、思茅、勐腊、景洪、勐海、潞西、瑞丽；生于海拔350—1900米处的山谷溪边林中。四川、西藏、广西、广东、海南也有。分布于越南、老挝、泰国、缅甸、不丹、锡金、尼泊尔、印度。
本种在广西也作中药钩藤使用。

《Flora of China》|| Rubiaceae || Uncaria ||攀茎钩藤 Uncaria scandens

9. Uncaria scandens (Smith) Hutchinson in Sargent, Pl. Wil­son. 3: 406. 1916.

攀茎钩藤 pan jing gou teng

Nauclea scandens Smith in Rees, Cycl. 24: Nauclea no. 9. 1813; Cephalanthus cavaleriei H. Léveillé; Uncaria wangii F. C. How.

Large lianas, height not noted. Young stems slender, weakly to markedly quadrangular, densely hirtellous or pilosulous. Petiole 3-6 mm, hirtellous to pilosulous; leaf blade drying papery, ovate, ovate-oblong, lanceolate, elliptic, or elliptic-oblong, 10-15 × 3-5.5 cm, adaxially sparsely to moderately strigillose or scabrous-puberulent on lamina and densely puberulent to strigillose on veins, abaxially moderately to densely pilosulous, hirtellous, and/or strigillose usually with at least some pubescence spreading, base rounded to truncate, subcordate, or cordulate, apex acute or usually acuminate; secondary veins 7-10 pairs, usually with pilosulous domatia; stipules deciduous, ovate, 6-10 mm, deeply 2-lobed, strigillose, puberulent, or glabrescent, lobes lanceolate, ovate, or narrowly triangular, acute. Inflorescences axillary and often in terminal groups of 5-7 heads, densely pilosulous to tomentulose; peduncles 3-7 cm, simple; bracts 4-9 mm; flowering heads 9-12 mm in diam. across calyces, 25-30 mm in diam. across corollas; bracteoles linear or linear-spatulate, 1-3 mm, sparsely pubescent. Flowers sessile. Calyx with hypanthium portion obconic, 1-1.5 mm, densely strigose or pilose; limb 2-3 mm, lobed for up to 2/3, densely grayish white strigillose; lobes linear or linear-spatulate, 1.5-2 mm, obtuse. Corolla pale yellow sometimes flushed with pink, salverform, outside sparsely to densely hirtellous; tube 8-10 mm; lobes obovate to elliptic, ca. 2 mm, rounded. Fruiting head 20-25 mm in diam. Fruit sessile, obovoid to oblanceoloid, 6-9 mm, hirtellous; seeds orange-yellow, ca. 2 mm. Fl. Feb, Apr, fr. Jul, Nov.

● Sparse forests, broad-leaved forests; 100-1500 m. Guangdong, Guangxi, Hainan, Sichuan, Xizang, Yunnan.

This species was illustrated by How (Sunyatsenia 6: t. 42. 1946, as Uncaria wangii). See comments about the separation of this species under U. homomalla.