Heteranthera dubia emersed stem; photo: S.L. Winterton
Heteranthera dubia flower; photo © C.S. Lewallen
Heteranthera dubia flower; photo: S.L. Winterton
Heteranthera limosa, emersed; photo: S.L. Winterton
Heteranthera limosa emersed flower; photo: S.L. Winterton
Heteranthera limosa flower; photo: S.L. Winterton
Heteranthera reniformis, emersed; photo: S.L. Winterton
Heteranthera reniformis leaves; photo: S.L. Winterton
Heteranthera reniformis flowers; photo: S.L. Winterton
Heteranthera reniformis flower; photo: S.L. Winterton
Heteranthera rotundifolia flower; photo: S.L. Winterton
Heteranthera zosterifolia emersed leaves and flowers; photo: S.L. Winterton
Heteranthera zosterifolia, emersed; photo: S.L. Winterton
Heteranthera zosterifolia, submersed; photo: S.L. Winterton
Heteranthera zosterifolia inflorescence; photo: S.L. Winterton
Heteranthera zosterifolia flower; photo: S.L. Winterton
Hibiscus coccineus, emersed; photo: S.L. Winterton
Hibiscus coccineus flower; photo: S.L. Winterton
Hibiscus coccineus flower bud; photo: S.L. Winterton
Hibiscus lasiocarpos var. occidentalis inflorescence; photo: S.L. Winterton
Hibiscus moscheutos; photo: S.L. Winterton
Hibiscus moscheutos inflorescence; photo: S.L. Winterton
Hibiscus moscheutos flower; photo: S.L. Winterton
Hippuris vulgaris, emersed. Photo: S.L. Winterton
Hippuris vulgaris, submersed; photo: S.L. Winterton
Hippuris vulgaris; plate: C.A.M. Lindman "Bilder ur Nordens Flora" (1901-1905) © 1999 Gerhard Keuck
Hottonia inflata inflorescences, floating; photo © C.S. Lewallen
Hottonia inflata flowers; photo © C.S. Lewallen
Hottonia palustris, emersed; photo: S.L. Winterton