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管茎凤仙花Impatiens tubulosa

时间:2013-12-04 17:51作者:徐晔春 点击: 次 标签: Balsaminaceae 凤仙花科 凤仙花属 Impatiens
  中文名(Chinese Name):管茎凤仙花
学名(Scientific Name):Impatiens tubulosa Hemsl.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Impatiens plebeja Hemsl. 
科属(Family & Genus):凤仙花科Balsaminaceae凤仙花属Impatiens
形态特征(Description):一年生草本,高30-40厘米。茎较粗壮,肉质,直立,不分枝,无毛。下部节膨大。叶互生,下部叶在花期凋落,上部叶常密集;叶片披针形或长圆状披针形,长6-13厘米,宽2-3厘米,先端渐尖或长渐尖,基部狭楔形下延,边缘具圆齿状齿,齿端具胼胝状小尖,上面绿色,下面灰绿色,两面无毛,侧脉7-9 (-11) 对,弧状弯曲;叶柄长0.5-1.5厘米,较粗。总花梗和花序轴粗壮,劲直,前者长2-4厘米,具3-4 (-5) 花,排列成总状花序;花梗长20-40毫米,基部有1枚苞片;苞片膜质,卵状披针形,长5-7毫米,果期脱落;花黄色;侧生萼片4,外面2枚斜卵形,长5-6毫米,先端急尖,背面中肋具狭翅,内面2枚狭披针形或线状披针形,长9-10毫米,先端长渐尖。唇瓣囊状,口部略斜上,先端具小尖,基部渐狭成长约20毫米上弯的距;旗瓣倒卵状椭圆形,长约10毫米,背面中肋具绿色狭龙骨状突起,顶端具小喙尖,翼瓣具短柄,长约15毫米,2裂,下部裂片小,长圆形,上部裂片倒卵形,外缘无小耳;雄蕊5,花丝线形,花药卵球形,顶端钝;子房纺锤形,直立,顶端具5细齿裂。蒴果棒状,长2-2.5厘米,上部膨大,具喙尖。种子3-4粒,长圆球形,长4-5毫米,淡褐色,光滑。花期8-12月。
分布(Distribution):产浙江(龙泉)、江西(宁都、龙南、九龙山)、福建(南靖、厦门)、广东(连州、罗浮山)。生于林下或沟边阴湿处,海拔500-700米。
用途(Use):
引自中国植物志英文版:FOC Vol. 12 Page 53, 61
Impatiens tubulosa Hemsley, J. Linn. Soc., Bot. 23: 102. 1886.
管茎凤仙花 guan jing feng xian hua| Balsaminaceae  | Impatiens
Impatiens plebeja Hemsley.
Plants annual, 30-40 cm tall. Stem erect, robust, succulent, simple, glabrous, swollen in lower nodes. Leaves alternate, lower leaves withering at anthesis, upper leaves often crowded; petiole 0.5-1.5 cm, stout; leaf blade gray-green abaxially, green adaxially, lanceolate or oblong-lanceolate, 6-13 × 2-3 cm, glabrous, lateral veins 7-9(-11) pairs, base cuneate, decurrent, margin crenate-denticulate, teeth mucronulate, apex acuminate or long acuminate. Inflorescences racemose, 3- or 4(or 5)-flowered; peduncles robust, strict, 2-4 cm. Pedicels 2-4 cm, bracteate at base; bracts caducous at fruiting, ovate-lanceolate, 5-7 mm, membranous. Flowers yellow. Lateral sepals 4; outer 2: obliquely ovate, 5-6 mm, apex acute, abaxial midvein narrowly winged; inner 2: narrowly lanceolate or linear-lanceolate, 0.9-1 cm, apex long acuminate. Lower sepal saccate, gradually narrowed into a recurved spur ca. 2 cm; mouth oblique, tip mucronulate. Upper petal obovate-elliptic, ca. 1 cm, apex rostellate, abaxial midvein green, narrowly carinate; lateral united petals shortly clawed, ca. 1.5 cm, 2-lobed; basal lobes oblong, small; distal lobes obovate; auricle absent. Filaments linear; anthers ovoid, apex obtuse. Ovary erect, fusiform. Capsule clavate, 2-2.5 cm, swollen at upper part. Seeds 3 or 4, brownish, oblong-globose, 4-5 mm, smooth. Fl. Aug-Dec.
● Forest understories, shaded and humid places along canals; 500-700 m. Fujian, N Guangdong, Hunan (Xinning), Jiangxi, Zhejiang.
 




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