Hydrophyllum virginicum var. pacificum Eastwood ex Brand variety synonym

Hydrophyllum coelestinum Douglas species homotypic synonym

Hydrophyllum coelestinum Douglas ex Bentham species synonym

Hydrophyllum capitatum var. pumilum Geyer ex Hook. variety synonym

Hydrophyllum virginicum L. species synonym

Hydrophyllum virginianum f. virginianum form synonym

Hydrophyllum thompsoniae M.Peck species synonym

Hydrophyllum tenuipes A.Heller species accepted

Hydrophyllum viridulum G.N.Jones species synonym

Hydrophyllum fendleri (A.Gray) A.Heller species accepted

Hydrophyllum brownei Kral & V.M.Bates species accepted

Hydrophyllum occidentale (S.Watson) A.Gray species accepted

Hydrophyllum occidentale var. watsonii A.Gray variety synonym

Hydrophyllum capitatum Douglas ex Benth. species accepted

Hydrophyllum appendiculatum Michx. species accepted

Decemium appendiculatum (Michx.) Small species synonym

Hydrophyllum virginianum L. species accepted

Hydrophyllum macrophyllum Nutt. species accepted

Hydrophyllum canadense L. species accepted

Hydrophyllum macrophyllum var. occidentale S.Watson variety synonym

Hydrophyllum lobatum Stokes species synonym

Hydrophyllum hispidum (Raf.) Riddell species synonym

Hydrophyllum erectum Sessé & Moc. species doubtful

Hydrophyllum cochinchinense Lour. ex Steud. species doubtful

Hydrophyllum capitatum var. alpinum S.Watson variety synonym

Hydrophyllum appendiculatum f. album Steyerm. form synonym

Hydrophyllum alpinum Greene ex Brand species synonym

Hydrophyllum alpestre A.Nelson & P.B.Kenn. species accepted

Hydrophyllum albifrons var. fendleri (A.Gray) Brand variety synonym

Hydrophyllum acerifolium Salisb. species synonym

Decemium hirtum Raf. species synonym

Phacelia furcata Douglas ex Hook. species synonym

Hydrophyllum watsonii (A.Gray) Rydb. species synonym

Hydrophyllum virginicum var. pacificum Eastw. variety synonym

Hydrophyllum virginianum f. simplicifolium Fernald form synonym

Hydrophyllum virginianum var. patens (Britton) Brand variety synonym

Hydrophyllum tenuipes var. viride Jeps. variety synonym

Hydrophyllum spiraeifolium Salisb. species synonym

Hydrophyllum pinnatifidum Moench species synonym

Nemophila paniculata Spreng. species synonym

Hydrophyllum patens Britton species synonym

Hydrophyllum occidentale var. fendleri A.Gray variety synonym

Hydrophyllum capitatum var. pumilum Geyer variety homotypic synonym

Phacelia bipinnatifida Frank ex A.DC. species heterotypic synonym

Decemium appendiculatum (Michx.) Brand species synonym

Hydrophyllum hirtum Willd., 1913 species accepted

Hydrophyllum cochinchinense Lour. species homotypic synonym

Phacelia furcata Douglas species homotypic synonym

Hydrophyllum alpinum Greene species homotypic synonym

Phacelia bipinnatifida Frank species homotypic synonym

Hydrophyllum capitatum Douglas species homotypic synonym