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==长柄异药花形态特征==
草本，高 长柄异药花 0.5-1米；茎四棱形，肉质，无毛，具白色小腺点，棱上略具狭翅，上部具分枝，下部近木质。叶片纸质，长圆状披针形至椭圆形，顶端渐尖，基部楔形，长13-21厘米，宽5-6.7厘米，全缘或具疏细锯齿，具疏缘毛，5基出脉，叶面无毛，近基部具白色小腺点，基出脉微凹，侧脉不明显，背面被细糠秕状鳞片，基出脉、侧脉隆起，侧脉疏，细脉不明显；叶柄长2.5-5.5厘米，肉质，具白色小腺点。<ref>《中国植物志》 第53(1)卷 (1984) >> 242页 PDF</ref>
伞形花序，顶生，总梗长(2.5-)4-7.5厘米，肉质，具狭翅，多花，伞梗基部具1轮苞片；苞片广倒卵形，边缘膜质，长约1.6厘米，宽约1厘米，外面密被糠秕状鳞片，早落；花梗长约5毫米，无毛，果时长达9毫米；花萼漏斗形，长约12毫米，无毛，透明，具8脉；裂片三角状卵形，顶端钝，基部微耳形，长约4毫米；花瓣（花蕾期）白色，椭圆形，上部偏斜，长约8毫米；雄蕊（花蕾期）长者花丝长约5毫米，花药线形，长约8毫米，基部呈羊角状伸长，长约1毫米，药隔基部微突起，短者花丝长约5毫米，花药长圆形，长约2毫米，基部不呈羊角状；子房下位，顶部具膜质冠，冠4裂。
蒴果倒圆锥形，顶孔4裂，最大处直径约6毫米；宿存萼与蒴果同形，具8条纵肋，无毛，膜质冠伸出萼外约1.5毫米。花期约5月，果期约7月。
Herbs 50-100 cm tall. Stems 4-sided, winged on angles, with small white spots, glabrous. Petiole 2.5-5.5 cm, white-spotted; leaf blade oblong-lanceolate to elliptic, 13-21 × 5-6.7 cm, abaxially furfuraceous squamose, adaxially glabrous and often with white spots near base, secondary veins 2 on each side of midvein, base cuneate, margin ciliate and entire or sparsely serrulate, apex acuminate. Inflorescences terminal, umbellate, many-flowered; peduncle (2.5-)4-7.5 cm, winged; bracts broadly obovate, ca. 1.6 × 1 cm, caducous, densely furfuraceous squamose. Pedicel ca. 5 mm but to 9 mm in fruit, glabrous. Hypanthium funnel-shaped, ca. 1.2 cm, 8-ribbed, glabrous. Calyx lobes triangular-ovate, ca. 4 mm, base subauriculate, apex obtuse. Petals white, elliptic (in bud), ca. 8 mm, oblique. Longer stamens (in bud) with filament ca. 5 mm; anthers linear, ca. 8 mm, base lengthened and forming a forked spur; connective minutely bulged. Shorter stamens ca. 5 mm; anthers oblong, ca. 2 mm. Ovary inferior, 4 lobed, apex with a membranous crown. Capsule campanulate, ca. 6 mm in diam., apex 4-lobed, crown exserted ca. 1.5 mm beyond calyx; hypanthium 8-ribbed, glabrous. Fl. May, fr. Jul.
==长柄异药花生长环境==