Haemodoraceae R. Br., 1810, nom. cons.
Conostylidaceae (Pax) Takht., 1987
Dilatridaceae M. Roem., 1840
Wachendorfiaceae Herb., 1837
Xiphidiaceae Dumort., 1829
Halophytaceae A. Soriano, 1984
Haloragidaceae R. Br., 1814, nom. cons.
Cercodiaceae Juss., 1817
Myriophyllaceae Schultz Sch., 1832
Hamamelidaceae R. Br., 1818, nom. cons.
Bucklandiaceae J. Agardh, 1858, nom. illeg.
Disanthaceae Nakai, 1943
Fothergillaceae Nutt., 1818
Parrotiaceae Horan., 1834
Rhodoleiaceae Nakai, 1943
Hanguanaceae Airy Shaw, 1964
Hectorellaceae Philipson & Skipw., 1961
Heliconiaceae (A. Rich.) Nakai, 1941
Heloniadaceae J. Agardh, 1858
Heloseaceae (Schott & Endl.) Bromhead, 1840
Helwingiaceae Decne., 1836
Hemerocallidaceae R. Br., 1810
Hernandiaceae Blume, 1826, nom. cons.
Gyrocarpaceae Dumort., 1829
Illigeraceae Blume, 1833
Herreriaceae Endl., 1841
Hesperocallidaceae Traub, 1972
Heteropyxidaceae Engl. & Gilg, 1920, nom. cons.
Himantandraceae Diels, 1917, nom. cons.
Hippocastanaceae DC., 1824, nom. cons.
Aesculaceae Bercht. & J. Presl, 1820
Paviaceae Horan., 1834
Hippuridaceae Link, 1821, nom. cons.
Hoplestigmataceae Engl. & Gilg, 1924, nom. cons.
Hostaceae B. Mathew, 1988
Funkiaceae Horan., 1834, nom. illeg.
Huaceae A. Chev., 1947
Hugoniaceae Arn., 1834
Humiriaceae A. Juss., 1829, nom. cons.
Hyacinthaceae Batsch, 1786
Eucomidaceae Salisb., 1866
Lachenaliaceae Salisb., 1866
Ornithogalaceae Salisb., 1866
Scillaceae Vest, 1818
Hydatellaceae U. Hamann, 1976, nom. cons.
Hydnoraceae C. Agardh, 1821, nom. cons.
Hydrangeaceae Dumort., 1829, nom. cons.
Hortensiaceae Bercht. & J. Presl, 1820
Kirengeshomaceae Nakai, 1943
Philadelphaceae Martinov, 1820
Hydrastidaceae Martinov, 1820
Hydrocharitaceae Juss., 1789, nom. cons.
Blyxaceae (Aschers. & Gürcke) Nakai, 1949
Elodeaceae Dumort., 1829
Enhalaceae Nakai, 1943
Halophilaceae J. Agardh, 1858
Hydrillaceae Prantl, 1880
Stratiotaceae Link, 1829
Thalassiaceae Nakai, 1943
Vallisneriaceae Link, 1829
Hydrocotylaceae (Link) N. Hyl., 1945, nom. cons.
Hydropeltidaceae (DC.) Dumort., 1822
Hydrophyllaceae R. Br., 1817, nom. cons.
Ellisiaceae Bercht. & J. Presl, 1820
Eutocaceae Horan., 1847
Hydroleaceae Bercht. & J. Presl, 1820
Sagoneaceae Martinov, 1820
Hydrostachyaceae Engl., 1898, nom. cons.
Hymenophyllaceae Link, 1833
Trichomanaceae Burmeist., 1837
Hymenophyllopsidaceae Christ.
Hypecoaceae (Dumort.) Willk. & Lange, 1880
Hypoxidaceae R. Br., 1814, nom. cons.
Hypseocharitaceae Wedd., 1861