Similar(1): Masses of aquatic fern Giant salvinia (Salvinia molesta) in Lake ... Sam Houston National Forest. Texas, May 10, 2026
Similar(2): Aquatic fern Giant salvinia (Salvinia molesta) floating in a small ... Sam Houston National Forest. Texas, May 10, 2026
Similar(3): Aquatic fern Giant salvinia (Salvinia molesta) in Lake Conroe near ... Sam Houston National Forest. Texas, July 31, 2020
Similar(4): Aquatic fern Giant salvinia (Salvinia molesta) in shallow water of ... Houston National Forest. Texas, November 30, 2025
Similar(5): Aquatic fern Giant salvinia (Salvinia molesta) on a receding shore of ... Houston National Forest. Texas, February 16, 2020
Similar(6): Aquatic fern Giant salvinia (Salvinia molesta) in shallow water of ... Houston National Forest. Texas, February 16, 2020
Similar(7): Carpet of aquatic fern Giant salvinia (Salvinia molesta) in shallow ... Houston National Forest. Texas, November 30, 2025
Similar(8): Aquatic fern Giant salvinia (Salvinia molesta) and duckweed in shallow ... Sam Houston National Forest. Texas, March 29, 2020