La classificazione APG II, o sistema APG II, è la classificazione scientifica delle angiosperme basata sugli aggiornamenti più recenti (2003) dell'Angiosperm Phylogeny Group.

Legenda dei simboli * nuova collocazione della famiglia in APG II (2003) + nuovo ordine riconosciuto dal sistema APG II (2003) § nuova circoscrizione della famiglia (descritta nel testo delle pubblicazioni APG) I gruppi tra parentesi quadre sono alternative monofiletiche accettabili, ma alle quali viene preferita (dall'APG) una circoscrizione più allargata (la voce non messa tra parentesi che le precede).

Gruppi radice La genesi di questi gruppi viene ritenuta parallela a quella del resto delle angiosperme o degli altri gruppi principali, ragion per cui sono isolati dal resto della classificazione.

Amborellaceae Pichon (1948), nom. cons. Chloranthaceae R.Br. ex. Sims (1820), nom. cons. Nymphaeaceae Salisb. (1805), nom. cons. [ Cabombaceae Rich. ex. A.Rich. (1822), nom. cons. ]

+ Austrobaileyales Takht. ex. Reveal (1992) Austrobaileyaceae (Croizat) Croizat (1943), nom. cons. § Schisandraceae Blume (1830), nom. cons. [ Illiciaceae A.C.Sm. (1947), nom. cons. ] Trimeniaceae L.S.Gibbs (1917), nom. cons.

Ceratophyllales Bisch. (1839) Ceratophyllaceae Gray (1821), nom. cons.

Magnoliidae

+ Canellales Cronquist Canellaceae Mart. (1832), nom. cons. Winteraceae R.Br. ex Lindl. (1830), nom. cons.

Laurales Perleb (1826) Atherospermataceae R.Br. (1814) Calycanthaceae Lindl. (1819), nom. cons. Gomortegaceae Reiche (1896), nom. cons. Hernandiaceae Bercht. & J.Presl (1820), nom. cons. Lauraceae Juss. (1789), nom. cons. Monimiaceae Juss. (1809), nom. cons. Siparunaceae (A.DC.) Schodde 1970

Magnoliales Bromhead (1838) Annonaceae Juss. (1789), nom. cons. Degeneriaceae I.W.Bailey & A.C.Sm. (1942), nom. cons. Eupomatiaceae Endl. (1841), nom. cons. Himantandraceae Diels (1917), nom. cons. Magnoliaceae Juss. (1789), nom. cons. Myristicaceae R.Br. (1810), nom. cons.

Piperales Dumort. (1829) Aristolochiaceae Juss. (1789), nom. cons. * Hydnoraceae C.Agardh (1821), nom. cons. Lactoridaceae Engl. (1888), nom. cons. Piperaceae Bercht. & J.Presl (1820), nom. cons. Saururaceae Martynov (1820), nom. cons.

Monocotiledoni

§ Petrosaviaceae Hutch. (1934), nom. cons.

Acorales Reveal (1996) Acoraceae Martynov (1820)

Alismatales Dumort. (1829) Alismataceae Vent. (1799), nom. cons. Aponogetonaceae J.Agardh (1858), nom. cons. Araceae Juss. (1789), nom. cons. Butomaceae Mirb. (1804), nom. cons. Cymodoceaceae N.Taylor (1909), nom. cons. Hydrocharitaceae Juss. (1789), nom. cons. Juncaginaceae Rich. (1808), nom. cons. Limnocharitaceae Takht. ex Cronquist (1981) Posidoniaceae Hutch. (1934), nom. cons. Potamogetonaceae Rchb. (1828), nom. cons. Ruppiaceae Horan. (1834), nom. cons. Scheuchzeriaceae F.Rudolphi (1830), nom. cons. Tofieldiaceae Takht. (1995) Zosteraceae Dumort. (1829), nom. cons.

Asparagales Bromhead (1838) § Alliaceae Batsch ex. Borkh. (1797), nom. cons. [ Agapanthaceae F.Voigt (1850) ] [ Amaryllidaceae J.St.-Hil. (1805), nom. cons. ] § Asparagaceae Juss. (1789), nom. cons. [ Agavaceae Dumort. (1829), nom. cons. ] [ Aphyllanthaceae Burnett (1835) ] [ Hesperocallidaceae Traub (1972) ] [ Hyacinthaceae Batsch ex. Borkh. (1797) ] [ Laxmanniaceae Bubani (1901) ] [ Ruscaceae Spreng. (1826), nom. cons. ] [ Themidaceae Salisb. (1866) ] Asteliaceae Dumort. (1829) Blandfordiaceae R.Dahlgren & Clifford (1985) Boryaceae (Baker) M.W.Chase, Rudall & Conran (1997) Doryanthaceae R.Dahlgren & Clifford (1985) Hypoxidaceae R.Br. (1814), nom. cons. Iridaceae Juss. (1789), nom. cons. Ixioliriaceae Nakai (1943) Lanariaceae H.Huber ex R.Dahlgren & A.E. van Wyk (1988) Orchidaceae Juss. (1789), nom. cons. Tecophilaeaceae Leyb. (1862), nom. cons. § Xanthorrhoeaceae Dumort. (1829), nom. cons. [ Asphodelaceae Juss. (1789) ] [ Hemerocallidaceae R.Br. (1810) ] Xeronemataceae M.W.Chase, Rudall & M.F.Fay (2001)

Dioscoreales Hook.f. (1873) § Burmanniaceae Blume (1827), nom. cons. § Dioscoreaceae R.Br. (1810), nom. cons. Nartheciaceae Fr. ex Bjurzon (1846)

Liliales Perleb (1826) Alstroemeriaceae Dumort. (1829), nom. cons. Campynemataceae Dumort. (1829) Colchicaceae DC. (1804), nom. cons. * Corsiaceae Becc. (1878), nom. cons. Liliaceae Juss. (1789), nom. cons. Luzuriagaceae Lotsy (1911) Melanthiaceae Batsch ex Borkh. (1796), nom. cons. Philesiaceae Dumort. (1829), nom. cons. Rhipogonaceae Conran & Clifford (1985) Smilacaceae Vent. (1799), nom. cons.

Pandanales Lindl. (1833) Cyclanthaceae Poit. ex A.Rich. (1824), nom. cons. Pandanaceae R.Br. (1810), nom. cons. Stemonaceae Caruel (1878), nom. cons. * Triuridaceae Gardner (1843), nom. cons. Velloziaceae Hook. (1827), nom. cons.

Commelinidi

Dasypogonaceae Dumort. (1829)

Arecales Bromhead (1840) Arecaceae Schultz Sch. (1832), nom. cons.

Commelinales Dumort. (1829) Commelinaceae Mirb. (1804), nom. cons. Haemodoraceae R.Br. (1810), nom. cons. * Hanguanaceae Airy Shaw (1964) Philydraceae Link (1821), nom. cons. Pontederiaceae Kunth (1816), nom. cons.

Poales Small (1903) Anarthriaceae D.F.Cutler & Airy Shaw (1965) * Bromeliaceae Juss. (1789), nom. cons. Centrolepidaceae Endl. (1836), nom. cons. Cyperaceae Juss. (1789), nom. cons. Ecdeiocoleaceae D.F.Cutler & Airy Shaw (1965) Eriocaulaceae Martynov (1820), nom. cons. Flagellariaceae Dumort. (1829), nom. cons. Hydatellaceae U.Hamann (1976) Joinvilleaceae Toml. & A.C. Sm. (1970) Juncaceae Juss. (1789), nom. cons. * Mayacaceae Kunth (1842), nom. cons. Poaceae (R.Br.)Barnh.1895, nom. cons. * Rapateaceae Dumort. (1829), nom. cons. Restionaceae R.Br. (1810), nom. cons. Sparganiaceae Hanin (1811), nom. cons. § Thurniaceae Engl. (1907), nom. cons. Typhaceae Juss. (1789), nom. cons. § Xyridaceae C.Agardh (1823), nom. cons.

Zingiberales Griseb. (1854) Cannaceae Juss. (1789), nom. cons. Costaceae Nakai (1941) Heliconiaceae Nakai (1941) Lowiaceae Ridl. (1924), nom. cons. Marantaceae R.Br. (1814), nom. cons. Musaceae Juss. (1789), nom. cons. Strelitziaceae Hutch. (1934), nom. cons. Zingiberaceae Martynov (1820), nom. cons.

Eudicotiledoni Alcuni autori utilizzano la classe Rosopsida per questo gruppo.

§ Buxaceae Dumort. (1822), nom. cons. [ Didymelaceae Leandri (1937) ] Sabiaceae Blume (1851), nom. cons. Trochodendraceae Eichler (1865), nom. cons. [ Tetracentraceae A.C.Sm. (1945), nom. cons. ]

Proteales Dumort. (1829) Nelumbonaceae Bercht. & J.Presl (1820), nom. cons. § Proteaceae Juss. (1789), nom. cons. [ Platanaceae T.Lestib. (1826), nom. cons. ]

Ranunculales Dumort. (1829) Berberidaceae Juss. (1789), nom. cons. Circaeasteraceae Hutch. (1926), nom. cons. [ Kingdoniaceae A.S.Foster ex Airy Shaw (1964) ] Eupteleaceae K.Wilh. (1910), nom. cons. Lardizabalaceae R.Br. (1821), nom. cons. Menispermaceae Juss. (1789), nom. cons. Papaveraceae Juss. (1789), nom. cons. [ Fumariaceae Bercht. & J.Presl (1820), nom. cons. ] [ Pteridophyllaceae (Murb.)Nakai ex Reveal & Hoogland (1991) ] Ranunculaceae Juss. (1789), nom. cons.

Core eudicots

Aextoxicaceae Engl. & Gilg (1920), nom. cons. Berberidopsidaceae Takht. (1985) Dilleniaceae Salisb. (1807), nom. cons.

+ Gunnerales Takht. ex Reveal (1992) § Gunneraceae Meisn. (1842), nom. cons. [ Myrothamnaceae Nied. (1891), nom. cons. ]

Caryophyllales Perleb (1826) Achatocarpaceae Heimerl. (1934), nom. cons. Aizoaceae Martynov (1820), nom. cons. Amaranthaceae Juss. (1789), nom. cons. Ancistrocladaceae Planch. ex Walp. (1851), nom. cons. Asteropeiaceae (Szyszyl.) Takht. ex Reveal & Hoogland (1990) * Barbeuiaceae Nakai (1942) Basellaceae Raf. (1837), nom. cons. Cactaceae Juss. (1789), nom. cons. Caryophyllaceae Juss. (1789), nom. cons. Didiereaceae Radlk. (1896), nom. cons. Dioncophyllaceae Airy Shaw (1952), nom. cons. Droseraceae Salisb. (1808), nom. cons. Drosophyllaceae Chrtek, Slavíková & Studnicka (1989) Frankeniaceae Desv. (1817), nom. cons. * Gisekiaceae Nakai (1942) Halophytaceae A.Soriano (1984) Molluginaceae Bartl. (1825), nom. cons. Nepenthaceae Bercht.&J.Presl (1820), nom. cons. Nyctaginaceae Juss. (1789), nom. cons. Physenaceae Takht. (1985) Phytolaccaceae R.Br. (1818), nom. cons. Plumbaginaceae Juss. (1789), nom. cons. Polygonaceae Juss. (1789), nom. cons. Portulacaceae Juss. (1789), nom. cons. Rhabdodendraceae Prance (1968) Sarcobataceae Behnke (1997) Simmondsiaceae Tiegh. (1899) Stegnospermataceae Nakai (1942) Tamaricaceae Bercht. & J.Presl (1820), nom. cons.

Santalales Dumort. (1829) Olacaceae R.Br. (1818), nom. cons. Opiliaceae Valeton (1886), nom. cons. Loranthaceae Juss. (1808), nom. cons. Misodendraceae J.Agardh (1858), nom. cons. Santalaceae R.Br. (1810), nom. cons.

Saxifragales Dumort. (1829) Altingiaceae Horan. (1843), nom. cons. Aphanopetalaceae Doweld (2001) Cercidiphyllaceae Engl. (1907), nom. cons. Crassulaceae J.St.-Hil. (1805), nom. cons. Daphniphyllaceae Müll.-Arg. (1869), nom. cons. Grossulariaceae DC. (1805), nom. cons. § Haloragaceae R.Br. (1814), nom. cons. [ Penthoraceae Rydb. ex Britt. (1901), nom. cons. ] [ Tetracarpaeaceae Nakai (1943) ] Hamamelidaceae R.Br. (1818), nom. cons. § Iteaceae J.Agardh (1858), nom. cons. [ Pterostemonaceae Small (1905), nom. cons. ] Paeoniaceae Raf. (1815), nom. cons. Saxifragaceae Juss. (1789), nom. cons.

Rosidi

Aphloiaceae Takht. (1985) * Geissolomataceae Endl. (1841) Ixerbaceae Griseb. (1854) Picramniaceae Fernando & Quinn (1995) * Strasburgeriaceae Soler. (1908), nom. cons. * Vitaceae Juss. (1789), nom. cons.

+ Crossosomatales Takht. ex. Reveal (1993) Crossosomataceae Engl. (1897), nom. cons. Stachyuraceae J.Agardh (1858), nom. cons. Staphyleaceae Martynov (1820), nom. cons.

Geraniales Dumort. (1829) Geraniaceae Juss. (1789), nom. cons. [ Hypseocharitaceae Wedd. (1861) ] Ledocarpaceae Meyen (1834) § Melianthaceae Bercht. & J.Presl (1820), nom. cons. [ Francoaceae A.Juss. (1832), nom. cons. ] Vivianiaceae Klotzsch (1836)

Myrtales Rchb. (1828) Alzateaceae S.A.Graham (1985) Combretaceae R.Br. (1810), nom. cons. Crypteroniaceae A.DC. (1868), nom. cons. Heteropyxidaceae Engl. & Gilg (1920), nom. cons. Lythraceae J.St.-Hil. (1805), nom. cons. § Melastomataceae Juss. (1789), nom. cons. [ Memecylaceae DC. (1827), nom. cons. ] Myrtaceae Juss. (1789), nom. cons. Oliniaceae Arn. (1839), nom. cons. Onagraceae Juss. (1789), nom. cons. Penaeaceae Sweet ex. Guill. (1828), nom. cons. Psiloxylaceae Croizat (1960) Rhynchocalycaceae L.A.S.Johnson & B.G.Briggs (1985) Vochysiaceae A.St.-Hil. (1820), nom. cons.

Eurosidi I

§ * Zygophyllaceae R.Br. (1814), nom. cons. [ Krameriaceae Dumort. (1829), nom. cons. ] Huaceae A.Chev. (1947)

+ Celastrales Baskerville (1839) § Celastraceae R.Br. (1814), nom. cons. + Lepidobotryaceae J.Léonard (1950), nom. cons. Parnassiaceae Martynov (1820), nom. cons. [ Lepuropetalaceae Nakai (1943) ]

Cucurbitales Dumort. (1829) Anisophylleaceae Ridl. (1922) Begoniaceae Bercht. & J.Presl (1820), nom. cons. Coriariaceae DC. (1824), nom. cons. Corynocarpaceae Engl. (1897), nom. cons. Cucurbitaceae Juss. (1789), nom. cons. Datiscaceae Bercht. & J.Presl (1820), nom. cons. Tetramelaceae Airy Shaw (1964)

Fabales Bromhead (1838) Fabaceae Lindl. (1836), nom. cons. Polygalaceae Hoffmanns. & Link (1809), nom. cons. Quillajaceae D.Don (1831) Surianaceae Arn. (1834), nom. cons.

Fagales Engl. (1892) Betulaceae Gray (1821), nom. cons. Casuarinaceae R.Br. (1814), nom. cons. Fagaceae Dumort. (1829), nom. cons. § Juglandaceae DC. ex. Perleb (1818), nom. cons. [ Rhoipteleaceae Hand.-Mazz. (1932), nom. cons. ] Myricaceae A.Rich. ex. Kunth (1817), nom. cons. Nothofagaceae Kuprian (1962) Ticodendraceae Gómez-Laur. & L.D.Gómez (1991)

Malpighiales Mart. (1835) § Achariaceae Harms (1897), nom. cons. Balanopaceae Benth. & Hook.f. (1880), nom. cons. * Bonnetiaceae (Bartl.) L. Beauv. ex. Nakai (1948) Caryocaraceae Voigt (1845), nom. cons. § Chrysobalanaceae R.Br. (1818), nom. cons. [ Dichapetalaceae Baill. (1886), nom. cons. ] [ Euphroniaceae Marc.-Berti (1989) ] [ Trigoniaceae Endl. (1841), nom. cons. ] § Clusiaceae Lindl. (1836), nom. cons.