From the CO2Science Archive: Eastern Purple Coneflower, aka Echinacea purpurea, a flowering perennial, furnishes the active ingredient in some herbal remedies and is a nice late-summer display for our gardens.
Chipping away at the nonsense that more CO2 is bad for SOME plants, one species at a time.
Chipping away at the nonsense that more CO2 is bad for SOME plants, one species at a time.