News Headline
Spread of toxic invasive plant alarms U.S. forest authorities
Source
Washington Post
Publication Date
2013-06-13
Named after the Roman hero Hercules, Heracleum mantegazzianum captures attention with its impressive foliage: huge, sharply lobed leaves; hollow, hairy, purple-splotched stems, four inches in diameter; and towering umbrella-shaped white flowers that bloom in late spring.