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），通常被稱為大白屈菜或泰特羅麥（在美國，後者指加拿大血紅花），是白屈菜屬（Papaveraceae）白屈菜屬中唯一的物種。 The lesser celandine is not closely related, but its family, the Ranunculaceae, is allied to the Papaveraceae (Order Ranunculales).小白屈菜沒有密切關係，但其家族毛R科與罌粟科（毛R科）結盟。 The greater celandine is native to Europe and the Mediterranean basin.大白屈菜原產於歐洲和地中海盆地。 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年就已被定居者帶到北美，作為一種針對皮膚問題（例如疣）的草藥，在北美也很普遍。
Greater celandine has an erect habit, and may reach 30 to 120 cm high.大白屈菜具有直立的習性，可以達到30至1厘米高。 The leaves are deeply divided, XNUMX-cm long, and crenate.葉子深深地裂開了，長XNUMX厘米，而且是新月形的。 The sap is bright opaque yellow.汁液為明亮的不透明黃色。 The flowers comprise four yellow petals, each about XNUMX cm long, with two sepals.花由四個黃色的花瓣組成，每個花瓣約XNUMX厘米長，有兩個萼片。 The flowers appear from May to July.花從五月到七月出現。 The seeds are small and black, and possess an elaiosome, which attracts ants to disperse the seeds (myrmecochory).種子又小又黑，並具有彈性體，吸引螞蟻將其分散（種子線蟲）。 A double-flowered variety, a naturally occurring mutation, also exists.還存在一朵雙花的變種，一種自然發生的突變。 It is considered an aggressive invasive plant in natural areas (both woods and fields).它被認為是自然區域（森林和田野）中的一種侵略性入侵植物。 Control is mainly via pulling or spraying the plant before seed dispersal.控制主要是通過在種子播散前對植物進行拉或噴。