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旱金莲Tropaeolum majus

时间:2013-11-10 09:23来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 旱金莲 学名( Scientific Name ): Tropaeolum majus L. 英文名( English Common Name ): nasturtium 别名( Chinese Common Name ): 荷叶七、旱莲花 异名( Synonym ): Tropaeolum hortense Sparre Tropaeolum hybridu
中文名(Chinese Name):旱金莲
学名(Scientific Name):Tropaeolum majus L.
英文名(English Common Name):nasturtium
别名(Chinese Common Name):荷叶七、旱莲花
异名(Synonym):Tropaeolum hortense Sparre  Tropaeolum hybridum L.  Cardamindum majus Moench  Tropaeolum elatum Salisb.  Tropaeolum pinnatum Andrews  Tropaeolum quinquelobum Bergius  Trophaeum majus (L.) Kuntze
科属Family & Genus):旱金莲科(Tropaeolaceae)旱金莲属
形态特征(Description):一年生肉质草本,蔓生,无毛或被疏毛。叶互生;叶柄长6-31厘米,向上扭曲,盾状,着生于叶片的近中心处;叶片圆形,直径3-10厘米,有主脉9条.由叶柄着生处向四面放射,边缘为波浪形的浅缺刻,背面通常被疏毛或有乳凸点。单花腋生,花柄长6-13厘米;花黄色、紫色、桔红色或杂色,直径2.5-6厘米;花托杯状;萼片5,长椭圆状披针形,长1.5-2厘米,宽5-7毫米,基部合生,边缘膜质,其中一片延长成一长距,距长2.5-3.5厘米,渐尖;花瓣5,通常圆形,边缘有缺刻,上部2片通常全缘,长2.5-5厘米,宽1-1.8厘米,着生在距的开口处,下部3片基部狭窄成爪,近爪处边缘具睫毛;雄蕊8,长短互间,分离;子房3室,花柱1枚,柱头3裂,线形。果扁球形,成熟时分裂成3个具一粒种子的瘦果。花期6-10月,果期7-11月。
分布(Distribution):原产南美秘鲁、巴西等地,世界各地广为栽培。
引自中国植物志英文版:FOC Vol. 11 Page 33   
Tropaeolum majus Linnaeus, Sp. Pl. 1: 345. 1753.
旱金莲 han jin lian| Tropaeolaceae  | Tropaeolum
Herbs, annual, trailing, glabrous or nearly so. Leaf blade orbicular to somewhat reniform, 3-10 cm in diam., peltate and with 9 main nerves radiating from petiole, margin variously angled or sinuate but otherwise entire, abaxial surface usually papillose. Flowers axillary, solitary, yellow, orange, purple, maroon, creamy white, or varicolored, 2.5-6 cm in diam. Pedicel 6-13 cm. Torus cup-shaped. Sepals 5, oblong-lanceolate, 1.5-2 × 0.5-0.7 cm; spur 2.5-3.5 cm, straight or curved. Petals 5, apex mostly rounded but sometimes shortly pointed or even toothed; apical 2 petals 2.5-5 × 1-1.8 cm, margin often entire; basal 3 petals with margin deeply fringed on claw. Stamens 8, distinct, unequal. Ovary 3-loculed; style 1; stigma linear, 3-lobed. Fruit oblate, separating into 3 1-seeded mericarps at maturity. Fl. Jun-Oct, fr. Jul-Oct. 2n = 28.
Cultivated as a potted plant in most of China, escaped and apparently naturalized in Sichuan, Xizang (Nyingchi), Yunnan [native to South America (Brazil and Peru)].
 






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