Sparganium erectum; drawing © University of Florida/IFAS Center for Aquatic and Invasive Plants, used with permission
Sparganium erectum; drawing © University of Florida/IFAS Center for Aquatic and Invasive Plants, used with permission
Sparganium erectum; drawing © University of Florida/IFAS Center for Aquatic and Invasive Plants, used with permission; inset photo © M. Storey
Sparganium erectum; drawing © University of Florida/IFAS Center for Aquatic and Invasive Plants, used with permission; inset photo © M. Storey
Sparganium simplex; plate: C.A.M. Lindman "Bilder ur Nordens Flora" (1901-1905) © 1999 Gerhard Keuck
Sparganium simplex; plate: C.A.M. Lindman "Bilder ur Nordens Flora" (1901-1905) © 1999 Gerhard Keuck
Sphenoclea zeylanica flower spike; photo © Steve and Alison Pearson, Airlie Beach, Australia
Sphenoclea zeylanica fruit (at base); photo © Steve and Alison Pearson, Airlie Beach, Australia