洋桔梗原產於美國中部內布拉斯加州(Nebraxka)至德克薩斯州(Texas)一帶,為龍膽科的草本花卉。洋桔梗是近年來在國內發展快速的新興切花之一。花形優美,花色也多,有紫、白、黃、粉紅及白底鑲紫邊、粉邊等多種。切花吸水性好,瓶插 壽命長,且多數花蕾仍能繼續生長,依序開放。由於花色花姿頗具現代感而討人喜愛,尤其紫色系的花朵,在夏季利用頗具涼意。生產地區除中部的埔里、后里、卓蘭、田尾外,已擴及南部的高屏地區。
主要品種
洋桔梗株高因品種不同而異。花冠呈漏斗狀,有單重瓣之分,花色非常豐富,主要有紅、粉紅、淡紫、紫、白、黃以及各種不同程度鑲邊的復色花,根據品種不同,每個花莖可產生10~20朵花,通常單枝著花5-10朵。
![Voyage White](http://rougeflower.net/wp-content/uploads/2011/11/Voyage-White1-150x150.jpg)
Voyage White
![Piccorosa White](http://rougeflower.net/wp-content/uploads/2011/11/Piccorasa-White1-150x150.jpg)
Piccorosa White
![Excalibur Green](http://rougeflower.net/wp-content/uploads/2011/11/Excalibur-Green1-150x150.jpg)
Excalibur Green
![Robella Green](http://rougeflower.net/wp-content/uploads/2011/11/Robella-Green1-150x150.jpg)
Robella Green
![Robella Yellow](http://rougeflower.net/wp-content/uploads/2011/11/Robella-Yellow1-150x150.jpg)
Robella Yellow
![Piccorosa Blue](http://rougeflower.net/wp-content/uploads/2011/11/Piccorasa-Blue1-150x150.jpg)
Piccorosa Blue
![Patio Snow](http://rougeflower.net/wp-content/uploads/2016/05/準備中-150x150.jpg)
Patio Snow
![Voyage Pink](http://rougeflower.net/wp-content/uploads/2016/05/準備中-150x150.jpg)
Voyage Pink
![Fuyu no Maria](http://rougeflower.net/wp-content/uploads/2016/05/準備中-150x150.jpg)
Fuyu no Maria
![Voyage Blue](http://rougeflower.net/wp-content/uploads/2016/05/準備中-150x150.jpg)
Voyage Blue