版纳蛇根草Ophiorrhiza hispidula Wall. ex G. Don
版纳蛇根草Ophiorrhiza hispidula Wall. ex G. Don
29. 版纳蛇根草（植物研究）
Ophiorrhiza hispidula Wall. ex G. Don, Gen. Syst. 3: 523. 1834; King et Gamble, Mat. Fl. Mal. Penn. 2: 40. 1923; Lo in Bull. Bot. Res. 10 (2): 38. 1990.
草本；茎、枝肉质，卧地，下部节上生根，干时纤细，被皱曲微柔毛。叶卵形或阔卵形，有时近披针形，长通常1.5-4.5厘米，有时可达7厘米，顶端稍钝或短尖，基部阔楔形，干时带灰色，上面散生短糙毛，下面脉上被柔毛，毛有时很密；侧脉每边5-7条，纤细，上面不很明显，下面微凸起；托叶基部阔，上部丝状渐尖，长约6毫米，有时脱落。花序顶生，总梗长1-2.5厘米，和分枝均被短柔毛；花梗很短，无小苞片或有极小的小苞片；萼小，长约1毫米，被柔毛，萼裂片比萼管稍短；花冠白色，近管状，长约6毫米，被微柔毛或近无毛。蒴果倒心状，被短柔毛，宽约4毫米，长约1.5毫米。花期早春至夏初。
产于云南西双版纳；生于密林中。国外分布于孟加拉国、印度（安达曼群岛）和马来半岛。
《Flora of China》 Vol. 19 (2011)
Ophiorrhiza hispidula Wallich ex G. Don Gen. Hist. 3: 523. 1834.
版纳蛇根草 ban na she gen cao
Herbs, procumbent at base, ascending above, to 15 cm tall; stems glabrescent to densely villosulous. Leaves in subequal pairs; petiole 0.3-1 cm, puberulent to glabrescent; blade drying thinly papery, grayish, ovate, broadly ovate, elliptic, or sublanceolate, 1.5-4.5(-7) × 1-2.5 cm, adaxially glabrescent to sparsely strigillose, abaxially glabrous except pilosulous to puberulent along principal veins, base cuneate to obtuse, margins entire, apex acute; secondary veins 5-7 pairs; stipules persistent on uppermost nodes, triangular becoming strongly narrowed, 4-10 mm, glabrescent, long acuminate to aristate. Inflorescences cymose, several flowered, puberulent to hispidulous; peduncle 1-2.5(-4) cm; axes developed, helicoid; bracts few, narrowly triangular to linear, 0.5-2 mm. Flowers subsessile. Calyx puberulent to pilosulous; hypanthium ellipsoid to subglobose, ca. 1 mm; lobes narrowly triangular, 0.8-1 mm. Corolla white, tubular, outside puberulent; tube 4-5 mm, barbate in throat and glabrescent to puberulent inside tube; lobes triangular-ovate, ca. 1.5 mm. Capsules obcordate, 1.5-2.5 × 4-5 mm, puberulent to villosulous. Fl. May-Sep, fr. Jul-Oct.
Dense forests. Yunnan (Xishuangbanna) [Bangladesh, India (including Andaman Islands), Indonesia, Malaysia, Thailand].
Ophiorrhiza hispidula was synonymized by Deb and Mondal (Bull. Bot. Surv. India 39(1-4): 131-133. 1997) under O. trichocarpa Blume, without explanation and reportedly without having seen Blume’s type; the name O. hispidula is provisionally used here pending further study.Ophiorrhiza hispidula was synonymized by Deb and Mondal (Bull. Bot. Surv. India 39(1-4): 131-133. 1997) under O. trichocarpa Blume, without explanation and reportedly without having seen Blume’s type; the name O. hispidula is provisionally used here pending further study.
科名：茜草科 Rubiaceae
属名：蛇根草属 Ophiorrhiza
29. 版纳蛇根草（植物研究）
Ophiorrhiza hispidula Wall. ex G. Don, Gen. Syst. 3: 523. 1834; King et Gamble, Mat. Fl. Mal. Penn. 2: 40. 1923; Lo in Bull. Bot. Res. 10 (2): 38. 1990.
草本；茎、枝肉质，卧地，下部节上生根，干时纤细，被皱曲微柔毛。叶卵形或阔卵形，有时近披针形，长通常1.5-4.5厘米，有时可达7厘米，顶端稍钝或短尖，基部阔楔形，干时带灰色，上面散生短糙毛，下面脉上被柔毛，毛有时很密；侧脉每边5-7条，纤细，上面不很明显，下面微凸起；托叶基部阔，上部丝状渐尖，长约6毫米，有时脱落。花序顶生，总梗长1-2.5厘米，和分枝均被短柔毛；花梗很短，无小苞片或有极小的小苞片；萼小，长约1毫米，被柔毛，萼裂片比萼管稍短；花冠白色，近管状，长约6毫米，被微柔毛或近无毛。蒴果倒心状，被短柔毛，宽约4毫米，长约1.5毫米。花期早春至夏初。
产于云南西双版纳；生于密林中。国外分布于孟加拉国、印度（安达曼群岛）和马来半岛。
《Flora of China》 Vol. 19 (2011)
Ophiorrhiza hispidula Wallich ex G. Don Gen. Hist. 3: 523. 1834.
版纳蛇根草 ban na she gen cao
Herbs, procumbent at base, ascending above, to 15 cm tall; stems glabrescent to densely villosulous. Leaves in subequal pairs; petiole 0.3-1 cm, puberulent to glabrescent; blade drying thinly papery, grayish, ovate, broadly ovate, elliptic, or sublanceolate, 1.5-4.5(-7) × 1-2.5 cm, adaxially glabrescent to sparsely strigillose, abaxially glabrous except pilosulous to puberulent along principal veins, base cuneate to obtuse, margins entire, apex acute; secondary veins 5-7 pairs; stipules persistent on uppermost nodes, triangular becoming strongly narrowed, 4-10 mm, glabrescent, long acuminate to aristate. Inflorescences cymose, several flowered, puberulent to hispidulous; peduncle 1-2.5(-4) cm; axes developed, helicoid; bracts few, narrowly triangular to linear, 0.5-2 mm. Flowers subsessile. Calyx puberulent to pilosulous; hypanthium ellipsoid to subglobose, ca. 1 mm; lobes narrowly triangular, 0.8-1 mm. Corolla white, tubular, outside puberulent; tube 4-5 mm, barbate in throat and glabrescent to puberulent inside tube; lobes triangular-ovate, ca. 1.5 mm. Capsules obcordate, 1.5-2.5 × 4-5 mm, puberulent to villosulous. Fl. May-Sep, fr. Jul-Oct.
Dense forests. Yunnan (Xishuangbanna) [Bangladesh, India (including Andaman Islands), Indonesia, Malaysia, Thailand].
Ophiorrhiza hispidula was synonymized by Deb and Mondal (Bull. Bot. Surv. India 39(1-4): 131-133. 1997) under O. trichocarpa Blume, without explanation and reportedly without having seen Blume’s type; the name O. hispidula is provisionally used here pending further study.Ophiorrhiza hispidula was synonymized by Deb and Mondal (Bull. Bot. Surv. India 39(1-4): 131-133. 1997) under O. trichocarpa Blume, without explanation and reportedly without having seen Blume’s type; the name O. hispidula is provisionally used here pending further study.