1. Accidental introductions are an important source of invasive plants in the continental United States1. Issue 7 (1st July 2013) Authors: Lehan, Nora E.; Murphy, Julia R.; Thorburn, Lukas P.; Bradley, Bethany A. Journal: American journal of botany Issue: Volume 100:Issue 7(2013) Page Start: 1287 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗