Gary Griggs, Our Ocean Backyard: Coastal invasions
(WorldNews Environment)

We are nearly surrounded by plants here on the Central Coast that came from somewhere else. Today some are known as cash crops and others as invasive species. There are the good (citrus, avocados, olives, figs and artichokes, to name a few), the bad (and I may take some heat for this list): pampas grass, Scotch and French Broom, acacia, ice plant, eucalyptus), and the ugly (poison hemlock and thistle). ......