One of the modern systems of plant taxonomy, the Dahlgren system was published by monocot specialist Rolf Dahlgren. His wife Gertrude carried on after his death.

According to the extensive listing by Professor Reveal (see 1 2 3 4, note the synonyms, both nomenclatural and taxonomic, for each name in the system), it looks like this:

• class Magnoliopsida

  subclass Magnoliidae

  superorder Magnolianae

  order Annonales

  family Annonaceae

  family Myristicaceae

  family Eupomatiaceae

  family Canellaceae

  family Austrobaileyaceae

  order Aristolochiales

  family Aristolochiaceae

  order Rafflesiales

  family Rafflesiaceae

  family Hydnoraceae

  order Magnoliales

  family Degeneriaceae

  family Himantandraceae

  family Magnoliaceae

  order Lactoridales

  family Lactoridaceae

  order Winterales

  family Winteraceae

  order Chloranthales

  family Chloranthaceae

  order Illiciales

  family Illiciaceae

  family Schisandraceae

  order Laurales

  family Amborellaceae

  family Trimeniaceae

  family Monimiaceae

  family Gomortegaceae

  family Calycanthaceae

  family Lauraceae

  order Nelumbonales

  family Nelumbonaceae

  superorder Nymphaeanae

  order Piperales

  family Saururaceae

  family Piperaceae

  order Nymphaeales

  family Cabombaceae

  family Nymphaeaceae

  family Ceratophyllaceae

  superorder Ranunculanae

  order Ranunculales

  family Lardizabalaceae

  family Sargentodoxaceae

  family Menispermaceae

  family Kingdoniaceae

  family Circaeasteraceae

  family Ranunculaceae

  family Hydrastidaceae

  family Berberidaceae

  order Papaverales

  family Papaveraceae

  family Fumariaceae

  superorder Caryophyllanae

  order Caryophyllales

  family Molluginaceae

  family Caryophyllaceae

  family Phytolaccaceae

  family Achatocarpaceae

  family Agdestidaceae

  family Basellaceae

  family Portulacaceae

  family Stegnospermataceae

  family Nyctaginaceae

  family Aizoaceae

  family Halophytaceae

  family Cactaceae

  family Didiereaceae

  family Hectorellaceae

  family Chenopodiaceae

  family Amaranthaceae

  superorder Polygonanae

  order Polygonales

  family Polygonaceae

  superorder Plumbaginanae

  order Plumbaginales

  family Plumbaginaceae

  family Limoniaceae

  superorder Malvanae

  order Malvales

  family Sterculiaceae

  family Plagiopteraceae

  family Bixaceae

  family Cochlospermaceae

  family Cistaceae

  family Sphaerosepalaceae

  family Sarcolaenaceae

  family Huaceae

  family Tiliaceae

  family Dipterocarpaceae

  family Bombacaceae

  family Malvaceae

  order Urticales

  family Ulmaceae

  family Moraceae

  family Cecropiaceae

  family Barbeyaceae

  family Cannabaceae

  family Urticaceae

  order Euphorbiales

  family Euphorbiaceae

  family Simmondsiaceae

  family Pandaceae

  family Aextoxicaceae

  family Dichapetalaceae

  order Thymelaeales

  family Gonystylaceae

  family Thymelaeaceae

  order Rhamnales

  family Rhamnaceae

  superorder Violanae

  order Violales

  family Flacourtiaceae

  family Berberidopsidaceae

  family Aphloiaceae

  family Physenaceae

  family Passifloraceae

  family Dipentodontaceae

  family Peridiscaceae

  family Scyphostegiaceae

  family Violaceae

  family Turneraceae

  family Malesherbiaceae

  family Caricaceae

  order Cucurbitales

  family Achariaceae

  family Cucurbitaceae

  family Begoniaceae

  family Datiscaceae

  order Salicales

  family Salicaceae

  order Tamaricales

  family Tamaricaceae

  family Frankeniaceae

  order Capparales

  family Capparaceae

  family Brassicaceae

  family Tovariaceae

  family Resedaceae

  family Gyrostemonaceae

  family Bataceae

  family Moringaceae

  order Tropaeolales

  family Tropaeolaceae

  family Limnanthaceae

  order Salvadorales

  family Salvadoraceae

  superorder Theanae

  order Dilleniales

  family Dilleniaceae

  order Paeoniales

  family Glaucidiaceae

  family Paeoniaceae

  order Theales

  family Stachyuraceae

  family Pentaphylacaceae

  family Marcgraviaceae

  family Quiinaceae

  family Ancistrocladaceae

  family Dioncophyllaceae

  family Nepenthaceae

  family Medusagynaceae

  family Caryocaraceae

  family Strasburgeriaceae

  family Ochnaceae

  family Chrysobalanaceae

  family Oncothecaceae

  family Scytopetalaceae

  family Theaceae

  family Bonnetiaceae

  family Clusiaceae

  family Elatinaceae

  order Lecythidales

  family Lecythidaceae

  superorder Primulanae

  order Primulales

  family Myrsinaceae

  family Aegicerataceae

  family Theophrastaceae

  family Primulaceae

  family Coridaceae

  order Ebenales

  family Sapotaceae

  family Styracaceae

  family Lissocarpaceae

  family Ebenaceae

  superorder Rosanae

  order Trochodendrales

  family Trochodendraceae

  family Tetracentraceae

  order Cercidiphyllales

  family Cercidiphyllaceae

  family Eupteleaceae

  order Hamamelidales

  family Hamamelidaceae

  family Platanaceae

  family Myrothamnaceae

  order Balanopales

  family Balanopaceae

  order Fagales

  family Nothofagaceae

  family Fagaceae

  family Corylaceae

  family Betulaceae

  order Juglandales

  family Rhoipteleaceae

  family Juglandaceae

  order Myricales

  family Myricaceae

  order Casuarinales

  family Casuarinaceae

  order Buxales)

  family Buxaceae

  family Daphniphyllaceae

  family Didymelaceae

  order Geissolomatales

  family Geissolomataceae

  order Cunoniales

  family Cunoniaceae

  family Baueraceae

  family Brunelliaceae

  family Davidsoniaceae

  family Eucryphiaceae

  order Saxifragales

  family Saxifragaceae

  family Francoaceae

  family Greyiaceae

  family Brexiaceae

  family Grossulariaceae

  family Iteaceae

  family Cephalotaceae

  family Crassulaceae

  family Podostemaceae

  order Droserales

  family Droseraceae

  family Lepuropetalaceae

  family Parnassiaceae

  order Rosales

  family Rosaceae

  family Neuradaceae

  family Malaceae

  family Amygdalaceae

  family Anisophylleaceae

  family Crossosomataceae

  family Surianaceae

  family Rhabdodendraceae

  order Gunnerales

  family Gunneraceae

  superorder Proteanae

  order Proteales

  family Proteaceae

  order Elaeagnales

  family Elaeagnaceae

  superorder Myrtanae

  order Myrtales

  family Psiloxylaceae

  family Heteropyxidaceae

  family Myrtaceae

  family Onagraceae

  family Trapaceae

  family Lythraceae

  family Combretaceae

  family Melastomataceae

  family Memecylaceae

  family Crypteroniaceae

  family Oliniaceae

  family Penaeaceae

  family Rhynchocalycaceae

  family Alzateaceae

  order Haloragales

  family Haloragaceae

  superorder Rutanae

  order Sapindales

  family Coriariaceae

  family Anacardiaceae

  family Leitneriaceae

  family Podoaceae

  family Sapindaceae

  family Hippocastanaceae

  family Aceraceae

  family Akaniaceae

  family Bretschneideraceae

  family Emblingiaceae

  family Staphyleaceae

  family Melianthaceae

  family Sabiaceae)

  family Meliosmaceae

  family Connaraceae

  order Fabales

  family Mimosaceae

  family Caesalpiniaceae

  family Fabaceae

  order Rutales

  family Rutaceae

  family Ptaeroxylaceae

  family Cneoraceae

  family Simaroubaceae

  family Tepuianthaceae

  family Burseraceae

  family Meliaceae

  order Polygalales

  family Malpighiaceae

  family Trigoniaceae

  family Vochysiaceae

  family Polygalaceae

  family Krameriaceae

  order Geraniales

  family Zygophyllaceae

  family Peganaceae

  family Nitrariaceae

  family Geraniaceae

  family Vivianiaceae

  family Ledocarpaceae

  family Biebersteiniaceae

  family Dirachmaceae

  family Balanitaceae

  order Linales

  family Linaceae

  family Humiriaceae

  family Ctenolophonaceae

  family Ixonanthaceae

  family Erythroxylaceae

  family Lepidobotryaceae

  family Oxalidaceae

  order Celastrales

  family Stackhousiaceae

  family Lophopyxidaceae

  family Cardiopteridaceae

  family Corynocarpaceae

  family Celastraceae

  order Rhizophorales

  family Rhizophoraceae

  family Elaeocarpaceae

  order Balsaminales

  family Balsaminaceae

  superorder Vitanae

  order Vitales

  family Vitaceae

  superorder Santalanae

  order Santalales

  family Olacaceae

  family Opiliaceae

  family Loranthaceae

  family Medusandraceae

  family Misodendraceae

  family Eremolepidaceae

  family Santalaceae

  family Viscaceae

  superorder Balanophoranae

  order Balanophorales

  family Cynomoriaceae

  family Balanophoraceae

  superorder Aralianae

  order Pittosporales

  family Pittosporaceae

  family Tremandraceae

  family Byblidaceae

  order Araliales

  family Araliaceae

  family Apiaceae

  superorder Asteranae

  order Campanulales

  family Pentaphragmataceae

  family Campanulaceae

  family Lobeliaceae

  order Asterales

  family Asteraceae

  superorder Solananae

  order Solanales

  family Solanaceae

  family Sclerophylacaceae

  family Goetzeaceae

  family Convolvulaceae

  family Cuscutaceae

  family Cobaeaceae

  family Polemoniaceae

  order Boraginales

  family Hydrophyllaceae

  family Ehretiaceae

  family Boraginaceae

  family Lennoaceae

  family Hoplestigmataceae

  superorder Ericanae

  order Bruniales

  family Bruniaceae

  family Grubbiaceae

  order Fouquieriales

  family Fouquieriaceae

  order Ericales

  family Actinidiaceae

  family Clethraceae

  family Cyrillaceae

  family Ericaceae

  family Empetraceae

  family Monotropaceae

  family Pyrolaceae

  family Epacridaceae

  order Stylidiales

  family Stylidiaceae

  order Sarraceniales

  family Sarraceniaceae

  superorder Cornanae

  order Cornales

  family Garryaceae

  family Alangiaceae

  family Nyssaceae

  family Cornaceae

  family Roridulaceae

  family Davidiaceae

  family Escalloniaceae

  family Helwingiaceae

  family Torricelliaceae

  family Aucubaceae

  family Aralidiaceae

  family Diapensiaceae

  family Phellinaceae

  family Aquifoliaceae

  family Paracryphiaceae

  family Sphenostemonaceae

  family Symplocaceae

  family Icacinaceae

  family Montiniaceae

  family Columelliaceae

  family Alseuosmiaceae

  family Hydrangeaceae

  family Sambucaceae

  family Viburnaceae

  family Menyanthaceae

  family Adoxaceae

  family Phyllonomaceae

  family Tribelaceae

  family Eremosynaceae

  family Pterostemonaceae

  family Tetracarpaeaceae

  order Eucommiales

  family Eucommiaceae

  order Dipsacales

  family Caprifoliaceae

  family Valerianaceae

  family Dipsacaceae

  family Morinaceae

  family Calyceraceae

  superorder Loasanae

  order Loasales

  family Loasaceae

  superorder Gentiananae

  order Goodeniales

  family Goodeniaceae

  order Oleales

  family Oleaceae

  order Gentianales

  family Desfontainiaceae

  family Loganiaceae

  family Dialypetalanthaceae

  family Rubiaceae

  family Theligonaceae

  family Gentianaceae

  family Saccifoliaceae

  family Apocynaceae

  family Asclepiadaceae

  superorder Lamianae

  order Lamiales

  family Retziaceae

  family Stilbaceae

  family Buddlejaceae

  family Scrophulariaceae

  family Myoporaceae

  family Globulariaceae

  family Plantaginaceae

  family Lentibulariaceae

  family Pedaliaceae

  family Trapellaceae

  family Martyniaceae

  family Gesneriaceae

  family Bignoniaceae

  family Acanthaceae

  family Verbenaceae

  family Lamiaceae

  family Callitrichaceae

  order Hydrostachyales

  family Hydrostachyaceae

  order Hippuridales

  family Hippuridaceae

  subclass Liliidae

  superorder Alismatanae

  order Alismatales

  family Aponogetonaceae

  family Butomaceae

  family Hydrocharitaceae

  family Limnocharitaceae

  family Alismataceae

  order Najadales

  family Scheuchzeriaceae

  family Juncaginaceae

  family Najadaceae

  family Potamogetonaceae

  family Zosteraceae

  family Posidoniaceae

  family Cymodoceaceae

  family Zannichelliaceae

  superorder Triuridanae

  order Triuridales

  family Triuridaceae

  superorder Aranae

  order Arales

  family Araceae

  family Acoraceae

  family Lemnaceae

  superorder Lilianae

  order Dioscoreales

  family Trichopodaceae

  family Dioscoreaceae

  family Stemonaceae

  family Taccaceae

  family Trilliaceae

  family Rhipogonaceae

  family Petermanniaceae

  family Smilacaceae

  order Asparagales

  family Philesiaceae

  family Luzuriagaceae

  family Convallariaceae

  family Dracaenaceae

  family Asparagaceae

  family Ruscaceae

  family Herreriaceae

  family Nolinaceae

  family Asteliaceae

  family Dasypogonaceae

  family Calectasiaceae

  family Blandfordiaceae

  family Xanthorrhoeaceae

  family Agavaceae

  family Hypoxidaceae

  family Tecophilaeaceae

  family Lanariaceae

  family Ixioliriaceae

  family Cyanastraceae

  family Phormiaceae

  family Doryanthaceae

  family Eriospermaceae

  family Asphodelaceae

  family Anthericaceae

  family Aphyllanthaceae

  family Hemerocallidaceae

  family Hostaceae

  family Hyacinthaceae

  family Alliaceae

  family Amaryllidaceae

  order Liliales

  family Colchicaceae

  family Uvulariaceae

  family Iridaceae

  family Alstroemeriaceae

  family Calochortaceae

  family Liliaceae

  order Melanthiales

  family Melanthiaceae

  family Campynemataceae

  order Burmanniales

  family Burmanniaceae

  family Corsiaceae

  order Orchidales

  family Neuwiediaceae

  family Apostasiaceae

  family Cypripediaceae

  family Orchidaceae

  superorder Bromelianae

  order Velloziales

  family Velloziaceae

  order Bromeliales

  family Bromeliaceae

  order Haemodorales

  family Haemodoraceae

  order Philydrales

  family Philydraceae

  order Pontederiales

  family Pontederiaceae

  order Typhales

  family Typhaceae

  superorder Zingiberanae

  order Zingiberales

  family Lowiaceae

  family Musaceae

  family Heliconiaceae

  family Strelitziaceae

  family Zingiberaceae

  family Costaceae

  family Cannaceae

  family Marantaceae

  superorder Commelinanae

  order Commelinales

  family Mayacaceae

  family Commelinaceae

  family Xyridaceae

  family Rapateaceae

  family Eriocaulaceae

  order Hydatellales

  family Hydatellaceae

  order Cyperales

  family Juncaceae

  family Thurniaceae

  family Cyperaceae

  order Poales

  family Flagellariaceae

  family Joinvilleaceae

  family Restionaceae

  family Centrolepidaceae

  family Poaceae

  superorder Arecanae

  order Hanguanales

  family Hanguanaceae

  order Arecales

  family Arecaceae

  superorder Cyclanthanae

  order Cyclanthales

  family Cyclanthaceae

  superorder Pandananae

  order Pandanales

  family Pandanaceae