Button snakeroot (Eryngium yuccifolium) both in natural light and under 365 nm ultraviolet (UV-A) blacklight from Lake Somerville Trailway near Birch Creek Unit of Somerville Lake State Park. Texas

🎞️ #3837-24
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Sam Houston Forest - Lake Somerville, Texas, June 23 - 28, 2026

Album 3837: Sam Houston Forest - Lake Somerville, Texas, June 23 - 28, 2026

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