More than multiple introductions: Multiple taxa contribute to the genesis of the invasive California’s wild artichoke thistle

Janet LEAK-GARCIA, Jodie S. HOLT, Seung-Chul KIM, Lisa MU, José A. MEJÍAS, Norman C. ELLSTRAND

Journal of Systematics and Evolution . 2013, (3): 295 -307 . DOI: 10.1111/j.1759-6831.2012.00222.x