Gallery

Hottonia palustris, emersed; photo: S.L. Winterton

Hottonia palustris, submersed; photo © FishesNpets

Hottonia palustris, submersed; photo © M. Rubin, SBAAPS

Hottonia palustris inflorescences; photo © Werner Wallner

Hottonia palustris; plate: C.A.M. Lindman "Bilder ur Nordens Flora" (1901-1905) © 1999 Gerhard Keuck

Houttuynia cordata; photo: S.L. Winterton

Houttuynia cordata; photo: S.L. Winterton

Houttuynia cordata inflorescences with white bracts; photo: S.L. Winterton

Houttuynia cordata inflorescence; photo: S.L. Winterton

Hydrilla verticillata, submersed; photo: S.L. Winterton

Hydrilla verticillata, submersed; photo: S.L. Winterton

Hydrilla verticillata, submersed; photo: S.L. Winterton

Hydrilla verticillata female flower, floating; photo: S.L. Winterton

Hydrilla verticillata female flower, floating; photo: S.L. Winterton

Hydrilla verticillata tubers; photo: S.L. Winterton

comparison of closely related genera; drawing © University of Florida/IFAS Center for Aquatic and Invasive Plants, used with permission

comparison of closely related genera; drawing © University of Florida/IFAS Center for Aquatic and Invasive Plants, used with permission

Hydrilla verticillata; drawing © University of Florida/IFAS Center for Aquatic and Invasive Plants, used with permission

Hydrocharis dubia, floating; photo: S.L. Winterton

Hydrocharis dubia flower; photo: S.L. Winterton

Hydrocharis morsus-ranae, floating; photo © R. Scribailo

Hydrocharis morsus-ranae; plate: C.A.M. Lindman "Bilder ur Nordens Flora" (1901-1905) © 1999 Gerhard Keuck

Hydrocharis morsus-ranae; drawing © University of Florida/IFAS Center for Aquatic and Invasive Plants, used with permission

Hydrocleys nymphoides, emersed and floating; photo: S.L. Winterton

Hydrocleys nymphoides flowers; photo: S.L. Winterton

Hydrocleys nymphoides leaf and flower; photo © K. Stüber

Hydrocotyle leucocephala, emersed; photo: S.L. Winterton

Hydrocotyle pusilla, emersed; photo: S.L. Winterton

Hydrocotyle pusilla inflorescense; photo: S.L. Winterton

Hydrocotyle ranunculoides, emersed; photo: S.L. Winterton

Hydrocotyle ranunculoides leaves; photo: S.L. Winterton

Hydrocotyle sibthorpioides, emersed; photo: S.L. Winterton