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夏堇Torenia fournieri

时间:2013-11-09 15:00来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 夏堇 学名( Scientific Name ): Torenia fournieri Linden ex E. Fourn. 英文名( English Common Name ): bluewings 别名( Chinese Common Name ): 蓝猪耳 异名( Synonym ): 科属( Family Genus ): 玄参科(Scrop
中文名(Chinese Name):夏堇
学名(Scientific Name):Torenia fournieri Linden ex E. Fourn.
英文名(English Common Name):bluewings
别名(Chinese Common Name):蓝猪耳
异名(Synonym):
科属(Family & Genus):玄参科(Scrophulariaceae)蝴蝶草属
形态特征(Description):直立草本,高15-50厘米。茎几无毛,具4窄棱,节间通常长6-9厘米,简单或自中、上部分枝。叶具长1-2厘米之柄,叶片长卵形或卵形,长3-5厘米,宽1.5-2.5厘米,几无毛,先端略尖或短渐尖,基部楔形,边缘具带短尖的粗锯齿。花具长1-2厘米之梗,通常在枝的顶端排列成总状花序;苞片条形,长2-5毫米;萼椭圆形,绿色或顶部与边缘略带紫红色,长1.3-1.9厘米,宽0.8厘米,具5枚宽约2毫米、多少下延的翅,果实成熟时,翅宽可达3毫米;萼齿2枚,多少三角形,彼此近于相等,有时齿端又稍开裂;花冠长2.5-4厘米,其超出萼齿部分长10-23毫米;花冠筒淡青紫色,背黄色;上唇直立,浅蓝色,宽倒卵形,长1-1.2厘米,宽1.2-1.5厘米,顶端微凹;下唇裂片矩圆形或近圆形,彼此几相等,长约1厘米,宽0.8厘米,紫蓝色,中裂片的中下部有一黄色斑块;花丝不具附属物。蒴果长椭圆形,长约1.2厘米,宽0.5厘米。种子小,黄色,圆球形或扁圆球形,表面有细小的凹窝。花果期6-12月。
分布(Distribution):本种原产越南,我国南方常见栽培,偶见逸生。
用途(Use):
引自中国植物志英文版:FOC Vol. 18 Page 39     
Torenia fournieri Linden ex Fournier, Ill. Hort. 23: 129. 1876.
兰猪耳 lan zhu er| Scrophulariaceae  | Torenia
Herbs, 15-50 cm tall. Stems erect, quadrangular, simple or branched above middle, subglabrous. Petiole 1-2 cm; leaf blade oblong-ovate to ovate, 3-5 X 1.5-2.5 cm, subglabrous, margin coarsely serrate. Racemes often terminal; bracts linear, 2-5 mm. Pedicel 1-2 cm. Calyx ellipsoid, 1.3-1.9 X ca. 0.8 cm, green or purple-red at apex and margin, 5-winged; wings decurrent, ca. 2 mm wide, becoming ca. 3 mm wide in fruit; lips subtriangular, 1.5-1.7 cm, sometimes apically lobed. Corolla 2.5-4 cm, exceeding calyx by 1-2.3 cm; tube pale violet, upper side yellow; lower lip lobes purple-blue, middle lobe with a yellow patch near base, oblong to suborbicular, ca. 10 X 8 mm, subequal; upper lip pale blue, erect, broadly obovate, 1-1.2 X 1.2-1.5 cm, emarginate. Stamens unappendaged. Capsule narrowly ellipsoid ca. 12 X 0.5 mm. Seeds yellow. Fl. and fr. Jun-Dec.
Usually cultivated in S China but sometimes occurring by roadsides or in fields; below 1200 m. Fujian, Guangdong, Guangxi, Taiwan, Yunnan, Zhejiang [Cambodia, Laos, Thailand, Vietnam].
 








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