| Hydrophyllum acerifolium Salisb. |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum albifrons A. Heller |
Synonym |
 |
TRO |
|
| Hydrophyllum albifrons var. fendleri (A. Gray) Brand |
Unresolved |
 |
TRO |
|
| Hydrophyllum aldea Roem. & Schult. |
Synonym |
 |
TRO |
|
| Hydrophyllum alpestre A.Nelson & P.B.Kenn. |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum appendiculatum Michx. |
Accepted |
 |
TRO |
|
| Hydrophyllum atranthum Alexander |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum brownei Kral & V.M. Bates |
Accepted |
 |
TRO |
|
| Hydrophyllum canadense L. |
Accepted |
 |
TRO |
|
| Hydrophyllum capitatum Douglas ex Benth. |
Accepted |
 |
TRO |
|
| Hydrophyllum capitatum var. capitatum |
Synonym |
 |
TRO |
|
| Hydrophyllum capitatum var. thompsonii (M. Peck) Constance |
Accepted |
 |
TRO |
|
| Hydrophyllum cochinchinense Lour. ex Steud. |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum congestum Wiegand |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum erectum Sessé & Moc. |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum fendleri (A. Gray) A. Heller |
Accepted |
 |
TRO |
|
| Hydrophyllum fendleri var. albifrons (A. Heller) J.F. Macbr. |
Accepted |
 |
TRO |
|
| Hydrophyllum fendleri var. fendleri |
Synonym |
 |
TRO |
|
| Hydrophyllum hispidum Riddell |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum lineare Pursh |
Synonym |
 |
TRO |
|
| Hydrophyllum lobatum Stokes |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum macrophyllum Nutt. |
Accepted |
 |
TRO |
|
| Hydrophyllum macrophyllum var. occidentale S. Watson |
Synonym |
 |
TRO |
|
| Hydrophyllum magellanicum Lam. |
Synonym |
 |
WCSP (in review) |
|
| Hydrophyllum magellanicum var. pinnatum Macloskie |
Synonym |
 |
TRO |
|
| Hydrophyllum occidentale (S. Watson) A. Gray |
Accepted |
 |
TRO |
|
| Hydrophyllum occidentale var. fendleri A. Gray |
Synonym |
 |
TRO |
|
| Hydrophyllum paniculatum Poepp. ex A.DC. |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum patens Britton |
Synonym |
 |
TRO |
|
| Hydrophyllum pinnatifidum Moench |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum pusillum Muhl. ex A.DC. |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum spiraeifolium Salisb. |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum tenuipes A.Heller |
Accepted |
 |
WCSP (in review) |
|
| Hydrophyllum thompsonii M. Peck |
Synonym |
 |
TRO |
|
| Hydrophyllum trilobum Raf. |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum virginianum L. |
Accepted |
 |
TRO |
|
| Hydrophyllum virginianum var. patens (Britton) Brand |
Accepted |
 |
TRO |
|
| Hydrophyllum virginianum f. virginianum |
Synonym |
 |
TRO |
|
| Hydrophyllum virginianum var. virginianum |
Synonym |
 |
TRO |
|
| Hydrophyllum virginicum L. |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum viridulum G.N.Jones |
Unresolved |
 |
WCSP (in review) |
|
| Hydrophyllum watsonii (A. Gray) Rydb. |
Accepted |
 |
TRO |
|