中文名（Chinese Name）：竹节黄
学名（Scientific Name）：Clinacanthus nutans (Burm. f.) Lindau
英文名（English Common Name）：
别名（Chinese Common Name）：青箭、扭序花、鳄嘴花
异名（Synonym）：Justicia nutans Burm. f.；Clinacanthus burmanni Nees；Clinacanthus burmanni var. robinsonii Benoist；Clinacanthus siamensis Bremek.  
科属（Family & Genus）：爵床科（Acanthaceae）鳄嘴花属
形态特征（Description）：高大草本、直立或有时攀援状。茎圆柱状、干时黄色、有细密的纵条纹、近无毛。叶纸质、披针形或卵状披针形，长5-11厘米，宽1-4厘米，顶端弯尾状渐尖，基部稍偏斜，近全缘，两面无毛；侧脉每边5或6条，干时两面稍凸起；叶柄长5-7毫米或过之。花序长1.5厘米，被腺毛；苞片线形，长约8毫米，顶端急尖；萼裂片长约8毫米，渐尖；花冠深红色，长约4厘米，被柔毛。雄蕊和雌蕊光滑无毛。蒴果未见。花期：春夏。
分布（Distribution）：广布于华南热带至中南半岛、马来半岛、爪哇、加里曼丹。产我国云南、广西、广东、海南等地。生于低海拔疏林中或灌丛内。
用途（Use）：全株入药，有调经、消肿、去瘀、止痛、接骨之效，可治跌打、贫血、黄疽、风湿等。
引自中国植物志英文版FOC Vol. 19 Page 442
Clinacanthus nutans (N. L. Burman) Lindau, Bot. Jahrb. Syst. 18: 63. 1893.
鳄嘴花 e zui hua  | Acanthaceae  | Clinacanthus
Justicia nutans N. L. Burman, Fl. Indica, 10. 1768; Clinacanthus burmanni Nees, nom. illeg. superfl.; C. nutans var. robinsonii Benoist.
Shrubs to 1 m tall. Stems terete, striate, glabrescent. Petiole 0.3-2 cm, sulcate, bifariously pubescent; leaf blade lanceolate-ovate, lanceolate, or linear-lanceolate, 7-12 × 1-4 cm, both surfaces pubescent when young then glabrescent except abaxially pilose along veins, secondary veins 4-6 on each side of midvein and abaxially elevated, base cuneate to rounded, margin subentire to sinuate-crenate, apex acuminate. Racemes 1 to several at or near shoot apex, usually 3 to several forming a terminal panicle; rachis gland-tipped pubescent; bracts and bracteoles linear, ca. 8 × 2 mm, abaxially gland-tipped pilose, apex acute. Calyx 0.9-1.3 cm; lobes linear, outside gland-tipped pilose, apex acute. Corolla dull red with a green base, 3-4.2 cm, outside gland-tipped pilose, inside glabrous except for a ring of trichomes ca. 5 mm above base; tube basally cylindric for ca. 5 mm and ca. 3 mm wide then gradually widened to ca. 6 mm at mouth; lower lip 1-2 × ca. 1 cm, with yellow streaks; upper lip triangular, 1-2 × ca. 0.5 cm, erect, apex emarginate; lobes ovate, 3-5 × 1-2 mm. Stamens exserted from mouth of corolla; filaments 1-1.5 cm, glabrous; anthers ovate-linear, 4-5 × ca. 1 mm, muticous. Style 3-3.7 cm, base sparsely pubescent. Capsule ca. 2 cm, pilose. Seeds ca. 2 mm in diam. Fl. Oct-Jan, fr. Mar.
Thickets; below 700 m. Guangdong, Guangxi, Hainan, Yunnan [Indonesia, Malaysia, Thailand, Vietnam].
This species is used medicinally.
 
（责任编辑：徐晔春）