Spiny heads of button snakeroot (Eryngium yuccifolium ... Spiny heads of button snakeroot (Eryngium yuccifolium) under both white light and a 365 nm ultraviolet (UV-A) LED flashlight from Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas, June 28, 2026 |
Sam Houston Forest - Lake ... 2026 |
|
  |
  |
Slideshow: |
|