Latest Greg Spyreas Stories
Researchers have constructed a 226-year history of fire in southern Illinois by looking at fire scars in tree stumps.
Like most invasive plants introduced to the U.S. from Europe and other places, garlic mustard first found it easy to dominate the natives. A new study indicates that eventually, however, its primary weapon â€“ a fungus-killing toxin injected into the soil â€“ becomes less potent.
- Withering but not falling off, as a blossom that persists on a twig after flowering.