Sep. 27, 2019

longleaf spiderwort, Tradescantia roseolens

Longleaf spiderwort is another botanical Geiger counter. When gamma rays are present the centers and filaments of the flowers can turn pink. No more radon tests, just plant spiderworts! Longleaf spiderwort grows in AL, FL, GA, and SC. Martin Co FL, 1/28/15.