白屈菜

Chelidonium majus, commonly known as the greater celandine or tetterwort (in America, the latter refers to Sanguinaria canadensis), is the only species in the genus Chelidonium, family Papaveraceae.白屈菜（Chelidonium majus），通常被称为大白屈菜或泰特罗麦（在美国，后者指加拿大血红花），是白屈菜属（Papaveraceae）白屈菜属中唯一的物种。 The lesser celandine is not closely related, but its family, the Ranunculaceae, is allied to the Papaveraceae (Order Ranunculales).小白屈菜没有密切关系，但其家族毛R科与罂粟科（毛R科）结盟。 The greater celandine is native to Europe and the Mediterranean basin.大白屈菜原产于欧洲和地中海盆地。 It is also widespread in North America, having been brought there by settlers as a herbal remedy for skin problems such as warts as early as 1672.[citation needed]它早在XNUMX年就已被定居者带到北美，作为皮肤病（如疣）的草药，在北美也很普遍。[需要引文]
Greater celandine has an erect habit, and may reach 30 to 120 cm high.大白屈菜具有直立的习性，可以达到30至1厘米高。 The leaves are deeply divided, XNUMX-cm long, and crenate.叶子深深地裂开了，长XNUMX厘米，而且是新月形的。 The sap is bright opaque yellow.汁液为明亮的不透明黄色。 The flowers comprise four yellow petals, each about XNUMX cm long, with two sepals.花由四个黄色的花瓣组成，每个花瓣约XNUMX厘米长，有两个萼片。 The flowers appear from May to July.花从五月到七月出现。 The seeds are small and black, and possess an elaiosome, which attracts ants to disperse the seeds (myrmecochory).种子又小又黑，并具有弹性体，吸引蚂蚁来分散种子（肉食虫）。 A double-flowered variety, a naturally occurring mutation, also exists.还存在一朵双花的变种，一种自然发生的突变。 It is considered an aggressive invasive plant in natural areas (both woods and fields).它被认为是自然区域（森林和田野）中的一种侵略性入侵植物。 Control is mainly via pulling or spraying the plant before seed dispersal.控制主要是通过在种子播散前对植物进行拉或喷。