大旗瓣凤仙花Impatiens macrovexilla Y. L. Chen
大旗瓣凤仙花Impatiens macrovexilla Y. L. Chen
183．大旗瓣凤仙花（植物分类学报）图版55: 1-12
Impatiens macrovexilla Y. L. Chen, in Acta Phytotax. Sin. 38 (6): 560. fig. 2. 2000.
一年生草本，高20-30厘米，全株无毛，具少数支柱根。茎肉质，直立，不分枝或中部分枝，下部长裸露，节肿胀，有时长出不定根。叶互生，具柄，叶片膜质，长圆形或长圆状披针形，长5-9 (-12) 厘米，宽2.5-4厘米，顶端渐尖，基部楔状下延成长1-2.5的叶柄，常具2球形腺体，边缘具圆齿状齿，齿端微凹，具小尖，侧脉9-12对，上面深绿色，下面淡绿色。总花梗单生于上部叶腋，长4-7厘米，具2，稀单花；花梗细，长1.5-3厘米，上部具苞片；苞片披针形，长5-7毫米，顶端渐尖，宿存。花紫色，长3.5-4.5厘米，侧生萼片2，绿色，宽卵形，长5-6毫米，宽3-4毫米，顶端长突尖，边缘具细齿。旗瓣大，扁圆形或肾形，长16毫米，宽35毫米，顶端凹入，背面中肋具窄龙骨状突起，先端具小尖头；翼瓣无柄，长26毫米，2裂，基部裂片长圆形，顶端圆形，上部裂片斧形，具三角状浅裂，背部具不明显的小耳；唇瓣窄漏斗形，长4-4.5厘米，口部斜上，长15毫米，先端具喙尖，基部渐狭成长2-2.5厘米内弯的细距。花丝线形，长5毫米；花药顶端钝。子房纺锤状，直立，长5-6毫米，顶端具5-6小齿裂。蒴果长圆形，长1.8-2厘米，顶端具3-5齿裂。种子多数，球形，长3毫米，褐色，光滑。花期9-10月。
产广西（桂林雁山、阳朔、龙胜）。生于山谷阴处、林下或路边草地，海拔100-1640米。模式标本采自广西桂林雁山。
《Flora of China》 Vol. 12 (2007)
Impatiens macrovexilla Y. L. Chen
大旗瓣凤仙花 da qi ban feng xian hua
Plants annual, 20-30 cm tall, glabrous, with few supporting roots. Stem erect, succulent, simple or branched at middle part, long naked basally, nodes swollen, sometimes with adventitious roots. Leaves alternate; petiole 1-2.5 cm; leaf blade pale green abaxially, dark green adaxially, oblong or oblong-lanceolate, 5-9(-12) × 2.5-4 cm, thinly membranous, lateral veins 9-12 pairs, often with 2 globose basal glands, base cuneate, attenuate into petiole, margin crenate, emarginate, teeth mucronulate, apex acuminate. Inflorescences in upper leaf axils, (1 or)2-flowered; peduncles 4-7 cm. Pedicels 1.5-3 cm, slender, bracteate above middle; bracts persistent, lanceolate, 5-7 mm, apex acuminate. Flowers purple, 3.5-4 cm deep. Lateral sepals 2, green, broadly ovate, 5-6 × 3-4 mm, margin denticulate, apex long cuspidate. Lower sepal narrowly funnelform, 4-4.5 cm, gradually narrowed into an incurved spur; spur 2-2.5 cm, slender; mouth oblique, ca. 1.5 cm, tip rostellate. Upper petal oblate or reniform, large, ca. 1.6 × 3.5 cm, apex retuse, mucronulate, abaxial midvein narrowly carinate; lateral united petals not clawed, ca. 2.6 cm, 2-lobed; basal lobes oblong, apex rounded; distal lobes dolabriform, 2-lobed apically; auricle inconspicuous. Filaments linear, ca. 5 mm; anthers obtuse. Ovary erect, fusiform, 5-6 mm. Capsule oblong, 1.8-2 cm. Seeds many, brown, globose, ca. 3 mm, smooth. Fl. Sep-Oct.
● Forests, grasslands at roadsides, shaded moist places; 1000-1600 m. Guangxi.
Impatiens macrovexilla var. yaoshanensis S. X. Yu et al. (Acta Phytotax. Sin. 45: 710. 2007), also from Guangxi, was published as this volume was going to press and therefore could not be treated here.
别名：大旗凤仙;大旗凤仙花;
科名：凤仙花科 Balsaminaceae
属名：凤仙花属 Impatiens
183．大旗瓣凤仙花（植物分类学报）图版55: 1-12
Impatiens macrovexilla Y. L. Chen, in Acta Phytotax. Sin. 38 (6): 560. fig. 2. 2000.
一年生草本，高20-30厘米，全株无毛，具少数支柱根。茎肉质，直立，不分枝或中部分枝，下部长裸露，节肿胀，有时长出不定根。叶互生，具柄，叶片膜质，长圆形或长圆状披针形，长5-9 (-12) 厘米，宽2.5-4厘米，顶端渐尖，基部楔状下延成长1-2.5的叶柄，常具2球形腺体，边缘具圆齿状齿，齿端微凹，具小尖，侧脉9-12对，上面深绿色，下面淡绿色。总花梗单生于上部叶腋，长4-7厘米，具2，稀单花；花梗细，长1.5-3厘米，上部具苞片；苞片披针形，长5-7毫米，顶端渐尖，宿存。花紫色，长3.5-4.5厘米，侧生萼片2，绿色，宽卵形，长5-6毫米，宽3-4毫米，顶端长突尖，边缘具细齿。旗瓣大，扁圆形或肾形，长16毫米，宽35毫米，顶端凹入，背面中肋具窄龙骨状突起，先端具小尖头；翼瓣无柄，长26毫米，2裂，基部裂片长圆形，顶端圆形，上部裂片斧形，具三角状浅裂，背部具不明显的小耳；唇瓣窄漏斗形，长4-4.5厘米，口部斜上，长15毫米，先端具喙尖，基部渐狭成长2-2.5厘米内弯的细距。花丝线形，长5毫米；花药顶端钝。子房纺锤状，直立，长5-6毫米，顶端具5-6小齿裂。蒴果长圆形，长1.8-2厘米，顶端具3-5齿裂。种子多数，球形，长3毫米，褐色，光滑。花期9-10月。
产广西（桂林雁山、阳朔、龙胜）。生于山谷阴处、林下或路边草地，海拔100-1640米。模式标本采自广西桂林雁山。
《Flora of China》 Vol. 12 (2007)
Impatiens macrovexilla Y. L. Chen
大旗瓣凤仙花 da qi ban feng xian hua
Plants annual, 20-30 cm tall, glabrous, with few supporting roots. Stem erect, succulent, simple or branched at middle part, long naked basally, nodes swollen, sometimes with adventitious roots. Leaves alternate; petiole 1-2.5 cm; leaf blade pale green abaxially, dark green adaxially, oblong or oblong-lanceolate, 5-9(-12) × 2.5-4 cm, thinly membranous, lateral veins 9-12 pairs, often with 2 globose basal glands, base cuneate, attenuate into petiole, margin crenate, emarginate, teeth mucronulate, apex acuminate. Inflorescences in upper leaf axils, (1 or)2-flowered; peduncles 4-7 cm. Pedicels 1.5-3 cm, slender, bracteate above middle; bracts persistent, lanceolate, 5-7 mm, apex acuminate. Flowers purple, 3.5-4 cm deep. Lateral sepals 2, green, broadly ovate, 5-6 × 3-4 mm, margin denticulate, apex long cuspidate. Lower sepal narrowly funnelform, 4-4.5 cm, gradually narrowed into an incurved spur; spur 2-2.5 cm, slender; mouth oblique, ca. 1.5 cm, tip rostellate. Upper petal oblate or reniform, large, ca. 1.6 × 3.5 cm, apex retuse, mucronulate, abaxial midvein narrowly carinate; lateral united petals not clawed, ca. 2.6 cm, 2-lobed; basal lobes oblong, apex rounded; distal lobes dolabriform, 2-lobed apically; auricle inconspicuous. Filaments linear, ca. 5 mm; anthers obtuse. Ovary erect, fusiform, 5-6 mm. Capsule oblong, 1.8-2 cm. Seeds many, brown, globose, ca. 3 mm, smooth. Fl. Sep-Oct.
● Forests, grasslands at roadsides, shaded moist places; 1000-1600 m. Guangxi.
Impatiens macrovexilla var. yaoshanensis S. X. Yu et al. (Acta Phytotax. Sin. 45: 710. 2007), also from Guangxi, was published as this volume was going to press and therefore could not be treated here.