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In some cases clicking on a family synonym will send you directly to the subfamily in which the genus of the basionym is to be found.
Abietaceae = Pinaceae = Pinales
Abolbodaceae = Xyridaceae = Poales
Abrophyllaceae = Rousseaceae = Asterales
Acalyphaceae = Euphorbiaceae = Malpighiales
Acanthaceae = Lamiales
[Acanthochlamydaceae] = Velloziaceae = Pandanales
Acarnaceae = Asteraceae = Asterales
Aceraceae = Sapindaceae = Sapindales
Achariaceae = Malpighiales
Achatocarpaceae = Caryophyllales
Achradaceae = Sapotaceae = Ericales
Achyranthaceae = Amaranthaceae = Caryophyllales
Acmopylaceae = Podocarpaceae = Pinales
Acoraceae = Acorales
Acristaceae = Arecaceae = Arecales
Actaeaceae = Ranunculaceae = Ranunculales
Actinidiaceae = Ericales
Actinotaceae = Apiaceae = Apiales
Amentotaxaceae = Taxaceae = Pinales
Adenogrammaceae = Molluginaceae = Caryophyllales
Adoxaceae = Dipsacales
Aegialitidaceae = Plumbaginaceae = Caryophyllales
Aegicerataceae = Myrsinaceae = Ericales
Aegilopaceae = Poaceae = Poales
Aeginetiaceae = Orobanchaceae = Lamiales
Aegiphilaceae = Lamiaceae = Lamiales
Aesculaceae = Sapindaceae = Sapindales
Aextoxicaceae = Berberidopsidales
Agapanthaceae = Asparagales
Agavaceae = Asparagales
Agdestidaceae = Phytolaccaceae = Caryophyllales
Agrimoniaceae = Rosaceae = Rosales
Agrostidaceae = Poaceae = Poales
Ailanthaceae = Simaroubaceae = Sapindales
Aitoniaceae = Meliaceae = Sapindales
Aizoaceae = Caryophyllales
Akaniaceae = Brassicales
Alangiaceae = Cornaceae = Cornales
Alchemillaceae = Rosaceae = Rosales
Aldrovandaceae = Droseraceae = Caryophyllales
Alismataceae = Alismatales
Alliaceae = Asparagales
Allioniaceae = Nyctaginaceae = Caryophyllales
Allophylaceae = Sapindaceae = Sapindales
Aloaceae = Asphodelaceae = Asparagales
Alopecuraceae = Poaceae = Poales
Alpiniaceae = Zingiberaceae = Zingiberales
Alseuosmiaceae = Asterales
Alsinaceae = Caryophyllaceae = Caryophyllales
Alsodeiaceae = Violaceae = Malpighiales
Alstroemeriaceae = Liliales
Altingiaceae = Saxifragales
Alzateaceae = Myrtales
Amaranthaceae = Caryophyllales
Amaryllidaceae = Asparagales
Amborellaceae = Amborellales
Ambrosiaceae = Asteraceae = Asterales
Amentotaxaceae = Taxaceae = Pinales
Ammanniaceae = Lythraceae = Myrtales
Ammiaceae = Apiaceae = Apiales
Amomaceae = Zingiberaceae = Zingiberales
Ampelidopsaceae = Vitaceae = Vitales
Amygdalaceae = Rosaceae = Rosales
Amyridaceae = Rutaceae = Sapindales
Anacardiaceae = Sapindales
Anagallidaceae = Myrsinaceae = Ericales
Anarthriaceae = Poales
Anchusaceae = Boraginaceae = unplaced euasterid I
Ancistrocladaceae = Caryophyllales
Andromedaceae = Ericaceae = Ericales
Andropogonaceae = Poaceae = Poales
Androstachyaceae = Picrodendraceae = Malpighiales
Androsynaceae = Tecophilaeaceae = Asparagales
Anemarrhenaceae = Agavaceae = Asparagales
Anemonaceae = Ranunculaceae = Ranunculales
Angelicaceae = Apiaceae = Apiales
Anisophylleaceae = Cucurbitales
Annonaceae = Magnoliales
Anomochloaceae = Poaceae = Poales
Anopteraceae = Escalloniaceae = unplaced near Apiales
Anrederaceae = Basellaceae = Caryophyllales
Anthemidaceae = Asteraceae = Asterales
Anthericaceae = Agavaceae = Asparagales
Anthobolaceae = Santalaceae = Santalales
Antidesmataceae = Phyllanthaceae = Malpighiales
Antirrhinaceae = Plantaginaceae = Lamiales
Antoniaceae = Loganiaceae = Gentianales
Aparinaceae = Rubiaceae = Gentianales
Aphanopetalaceae = Saxifragales
Aphloiaceae = Crossosomatales
Aphyllanthaceae = Asparagales
Apiaceae = Apiales
Apocynaceae = Gentianales
Apodanthaceae = Cucurbitales
Aponogetonaceae = Alismatales
Aporusaceae = Phyllanthaceae = Malpighiales
Aposeridaceae = Asteraceae = Asterales
Apostasiaceae = Orchidaceae = Asparagales
Aptandraceae = "Olacaceae" = Santalales
Aquifoliaceae = Aquifoliales
Aquilariaceae = Thymelaeaceae = Malvales
Aquilegiaceae = Ranunculaceae = Ranunculales
Araceae = Alismatales
Aragoaceae = Orobanchaceae = Lamiales
Araliaceae = Apiales
Aralidiaceae= Torricelliaceae = Apiales
Araucariaceae = Pinales
Arbutaceae = Ericaceae = Ericales
Arceuthobiaceae = Santalaceae = Santalales
Arctostaphylaceae = Ericaceae = Ericales
Arctotidaceae = Asteraceae = Asterales
Ardisiaceae = Myrsinaceae = Ericales
Arecaceae = Arecales
Argophyllaceae = Asterales
Arisaraceae = Aristolochiaceae = Piperales
Aristolochiaceae = Piperales
Aristoteliaceae = Elaeocarpaceae = Oxalidales
Arjonaceae = Olacaceae = Santalales
Armeriaceae = Plumbaginaceae = Caryophyllales
Artemisiaceae = Asteraceae = Asterales
Arthrotaxidaceae = Cupressaceae = Pinales
Artocarpaceae = Moraceae = Rosales
Arundinaceae = Poaceae = Poales
Arundinellaceae = Poaceae = Poales
Asaraceae = Aristolochiaceae = Piperales
Asclepiadaceae = Apocynaceae = Gentianales
Ascyraceae = Hypericaceae = Malpighiales
Asiraceae = Araceae = Alismatales
Asparagaceae = Asparagales
Asperulaceae = Rubiaceae = Gentianales
Asphodelaceae = Asparagales
Aspidistraceae = Ruscaceae = Asparagales
Asteliaceae = Asparagales
Asteraceae = Asterales
Asteranthaceae = Lecythidaceae = Ericales
Asteropeiaceae = Caryophyllales
Astragalaceae = Fabaceae = Fabales
Astrocarpaceae = Resedaceae = Brassicales
Athanasiaceae = Asteraceae = Asterales
Atherospermataceae = Laurales
Atriplicaceae = Amaranthaceae = Caryophyllales
Atropaceae = Solanaceae = Solanales
Aucubaceae = Garryaceae = Garryales
Aurantiaceae = Rutaceae = Sapindales
Austrobaileyaceae = Austrobaileyales
Austrotaxaceae = Taxaceae = Pinales
Avenaceae = Poaceae = Poales
Averrhoaceae = Oxalidaceae = Oxalidales
Avetraceae = Dioscoreaceae = Dioscoreales
Avicenniaceae = Acanthaceae = Lamiales
Azaleaceae = Ericaceae = Ericales
Azimaceae = Salvadoraceae = Brassicales
Balanitaceae = Zygophyllaceae = Zygophyllales
Balanopaceae = Malpighiales
Balanophoraceae = Santalales
Balsameaceae = Burseraceae = Sapindales
Balsaminaceae = Ericales
Bambusaceae = Poaceae = Poales
Barbaceniaceae = Velloziaceae = Pandanales
Barbeuiaceae = Caryophyllales
Barbeyaceae = Rosales
Barclayaceae = Nymphaeaceae = Nymphaeales
Barringtoniaceae = Lecythidaceae = Ericales
Basellaceae = Caryophyllales
Bataceae = Brassicales
Baueraceae = Cunoniaceae = Oxalidales
Bauhiniaceae = Fabaceae = Fabales
Baxteriaceae = Dasypogonaceae = unplaced Commelinid
Begoniaceae = Cucurbitales
Behniaceae = Agavaceae = Asparagales
Belangeraceae = Cunoniaceae = Oxalidales
Belloniaceae = Gesneriaceae = Lamiales
Bembiciaceae = Salicaceae = Malpighiales
Berberidaceae = Ranunculales
Berberidopsidaceae = Berberidopsidales
Berryaceae = Malvaceae = Malvales
Bersamaceae = Melianthaceae = Geraniales
Bertyaceae = Euphorbiaceae = Malpighiales
Berzeliaceae = Bruniaceae = unplaced Near Asterales
Besleriaceae = Gesneriaceae = Lamiales
Betaceae = Amaranthaceae = Caryophyllales
Betulaceae = Fagales
Biebersteiniaceae = Sapindales
Bifariaceae = Santalaceae = Santalales
Bignoniaceae = Lamiales
Bischofiaceae = Phyllanthaceae = Malpighiales
Bixaceae = Malvales
Blakeaceae = Melastomataceae = Myrtales
Blandfordiaceae = Asparagales
Blattiaceae = Lythraceae = Myrtales
Blepharocaryaceae = Anacardiaceae = Sapindales
Blitaceae = Amaranthaceae = Caryophyllales
Blyxaceae = Hydrocharitaceae = Alismatales
Boerlagellaceae = Sapotaceae = Ericales
Bolivaraceae = Oleaceae = Lamiales
Bombacaceae = Malvaceae = Malvales
Bonnetiaceae = Malpighiales
Bontiaceae = Scrophulariaceae = Lamiales
Boopidaceae = Calyceraceae = Asterales
Boraginaceae = unplaced euasterid I
Borassaceae = Arecaceae = Arecales
Boroniaceae = Rutaceae = Sapindales
Boryaceae = Asparagales
Botryodendraceae = Araliaceae = Apiales
Bougainvilleaceae = Nyctaginaceae = Caryophyllales
Boweniaceae = Zamiaceae = Cycadales
Brassicaceae = Brassicales
Brachycaulaceae = Saxifragaceae = Saxifragales
Bretschneideraceae = Akaniaceae = Brassicales
Brexiaceae = Celastraceae = Celastrales
Bromeliaceae = Poales
Brownlowiaceae = Malvaceae = Malvales
Brunelliaceae = Oxalidales
Bruniaceae = unplaced near Asterales
Brunoniaceae = Goodeniaceae = Asterales
Brunsvigiaceae = Amaryllidaceae = Asparagales
Bryoniaceae = Cucurbitaceae = Cucurbitales
Buchneraceae = Orobanchaceae = Lamiales
Bucidaceae = Combretaceae = Myrtales
Buddlejaceae = Scrophulariaceae = Lamiales
Buglossaceae = Boraginaceae = unplaced euasterid I
Bulbocodiaceae = Colchicaceae = Liliales
Bumeliaceae = Sapotaceae = Ericales
Bupleuraceae = Apiaceae = Apiales
Burchardiaceae = Colchicaceae = Liliales
Burmanniaceae = Dioscoreales
Burseraceae = Sapindales
Butneriaceae = Calycanthaceae = Laurales
Butomaceae = Alismatales
Buxaceae = Buxales
Byblidaceae = Lamiales
Byttneriaceae = Malvaceae = Malvales
Cabombaceae = Nymphaeales
Cacaoaceae = Malvaceae = Malvales
Cactaceae = Caryophyllales
Caesalpiniaceae = Fabaceae = Fabales
Caladiaceae = Araceae = Alismatales
Calamaceae = Arecaceae = Arecales
Calceolariaceae = Lamiales
Calectasiaceae = Dasypogonaceae = unplaced Commelinid
Calendulaceae = Asteraceae = Asterales
Callaceae = Araceae = Alismatales
Callicomaceae = Cunoniaceae = Oxalidales
Calligonaceae = Polygonaceae = Caryophyllales
Callitraceae = Cupressaceae = Pinales
Callitrichaceae = Plantaginaceae = Lamiales
Calochortaceae = Liliaceae = Liliales
Calophyllaceae = Clusiaceae = Malpighiales
Calthaceae = Ranunculaceae = Ranunculales
Calycanthaceae = Laurales
Calyceraceae = Asterales
Cambogiaceae = Clusiaceae = Malpighiales
Camelliaceae = Theaceae = Ericales
Campanulaceae = Asterales
Campynemataceae = Liliales
Canacomyricaceae = Myricaceae = Fagales
Canellaceae = Canellales
Cannabaceae = Rosales
Cannaceae = Zingiberales
Canopodaceae = Santalaceae = Santalales
Canotiaceae = Celastraceae = Celastrales
Cansjeraceae = Opiliaceae = Santalales
Capparaceae = Brassicales
Caprariaceae = Scrophulariaceae = Lamiales
Caprifoliaceae = Dipsacales
Cardiopteridaceae = Aquifoliales
Carduaceae = Asteraceae = Asterales
Caricaceae = Brassicales
Carissaceae = Apocynaceae = Gentianales
Carlemanniaceae = Lamiales
Carpinaceae = Betulaceae = Fagales
Carpodetaceae = Rousseaceae = Asterales
Cartonemataceae = Commelinaceae = Commelinales
Caryocaraceae = Malpighiales
Caryophyllaceae = Caryophyllales
Casearieaceae = Salicaceae = Malpighiales
Cassiaceae = Fabaceae = Fabales
Cassipoureaceae = Rhizophoraceae = Malpighiales
Cassythaceae = Lauraceae = Laurales
Castaneaceae = Fagaceae = Fagales
Castelaceae = Simaroubaceae = Sapindales
Casuarinaceae = Fagales
Catesbaeaceae = Rubiaceae = Gentianales
Cathedraceae = Olacaceae = Santalales
Cecropiaceae = Urticaceae = Rosales
Cedraceae = Pinaceae = Pinales
Cedrelaceae = Meliaceae = Sapindales
Celastraceae = Celastrales
Celosiaceae = Amaranthaceae = Caryophyllales
Celtidaceae = = Cannabaceae = Rosales
Centaureaceae = Asteraceae = Asterales
Centrolepidaceae = Poales
Centroplacaceae = Malpighiales
Cepaceae = Alliaceae = Asparagales
Cephalanthaceae = Rubiaceae = Gentianales
Cephalotaceae = Oxalidales
Cephalotaxaceae = Taxaceae = Pinales
Cerastiaceae = Caryophyllaceae = Caryophyllales
Ceratoniaceae = Fabaceae = Fabales
Ceratophyllaceae = Ceratophyllales
Cerberaceae = Apocynaceae = Gentianales
Cercidiphyllaceae = Saxifragales
Cercocarpaceae = Rosaceae = Rosales
Cercodiaceae = Haloragaceae = Saxifragales
Cereaceae = Cactaceae = Caryophyllales
Cerinthaceae = Boraginaceae = unplaced euasterid I
Ceroxylaceae= Arecaceae = Arecales
Cestraceae = Solanaceae = Solanales
Cevalliaceae = Loasaceae = Cornales
Chailletiaceae = Dichapetalaceae = Malpighiales
Chamaedoraceae = Arecaceae = Arecales
Chamaemoraceae = Rosaceae = Rosales
Chamelauciaceae = Myrtaceae = Myrtales
Chaunochitonaceae = "Olacaceae" = Santalales
Chelidoniaceae = Papaveraceae = Ranunculales
Chelonaceae = Plantaginaceae = Lamiales
Chenopodiaceae = Amaranthaceae = Caryophyllales
Chimonanthaceae = Calycanthaceae = Laurales
Chingithamnaceae = Celastraceae = Celastrales
Chionographidaceae = Melanthiaceae = Liliales
Chiranthodendraceae = Malvaceae = Malvales
Chironiaceae = Gentianaceae = Gentianales
Chlaenaceae = Sarcolaenaceae = Malvales
Chloanthaceae = Lamiaceae = Lamiales
Chloranthaceae = Chloranthales
Chloridaceae = Poaceae = Poales
Chlorogalaceae = Agavaceae = Asparagales
Chrysobalanaceae = Malpighiales
Ciceraceae = Fabaceae = Fabales
Cichoriaceae = Asteraceae = Asterales
Cimicifugaceae = Ranunculaceae = Ranunculales
Cinchoniaceae = Rubiaceae = Gentianales
Circaeaceae = Onagraceae = Myrtales
Circaeasteraceae = Ranunculales
Cissaceae = Vitaceae = Vitales
Cistaceae = Malvales
Citraceae = Rutaceae = Sapindales
Clematidaceae = Ranunculaceae = Ranunculales
Cleomaceae = Brassicales
Clethraceae = Ericales
Clusiaceae = Malpighiales
Cneoraceae = Rutaceae = Sapindales
Cnestidaceae = Connaraceae = Oxalidales
Cnicaceae = Asteraceae = Asterales
Cobaeaceae = Polemoniaceae = Ericales
Cochlospermaceae = Bixaceae = Malvales
Cocosaceae = Arecaceae = Arecales
Coffeaceae = Rubiaceae = Gentianales
Colchicaceae = Liliales
Coleogynaceae = Rosaceae = Rosales
Columelliaceae = unplaced near Asterales
Combretaceae = Myrtales
Commelinaceae = Commelinales
Comocladiaceae = Anacardiaceae = Sapindales
Compositae = Asteraceae = Asterales
Compsoaceae = Colchicaceae = Liliales
Conantheraceae = Tecophilaeaceae = Asparagales
Connaraceae = Oxalidales
Conostylidaceae = Haemodoraceae = Commelinales
Convallariaceae = Ruscaceae = Asparagales
Convolvulaceae = Solanales
Cordiaceae = Boraginaceae = unplaced euasterid I
Coreopsidaceae = Asteraceae = Asterales
Coriandraceae = Apiaceae = Apiales
Coriariaceae = Cucurbitales
Coridaceae = Myrsinaceae = Ericales
Corispermaceae = Amaranthaceae = Caryophyllales
Cornaceae = Cornales
Corokiaceae = Argophyllaceae = Asterales
Coronillaceae = Fabaceae = Fabales
Correaceae = Rutaceae = Sapindales
Corrigiolaceae = Caryophyllaceae = Caryophyllales
Corsiaceae = Liliales
Corydalaceae = Fumariaceae = Ranunculales
Corylaceae = Betulaceae = Fagales
Corynocarpaceae = Cucurbitales
Coryphaceae = Arecaceae = Arecales
Costaceae = Zingiberales
Cotyledonaceae = Crassulaceae = Saxifragales
Coulaceae = Erythropalaceae = Santalales
Coutariaceae = Rubiaceae = Gentianales
Coutoubiaceae = Gentianaceae = Gentianales
Crassulaceae = Saxifragales
Crescentiaceae = Bignoniaceae = Lamiales
Cressaceae = Convolvulaceae = Solanales
Crinaceae = Amaryllidaceae = Asparagales
Crocaceae = Iridaceae = Asparagales
Croomiaceae = Stemonaceae = Pandanales
Crossosomataceae = Crossosomatales
Crotonaceae = Euphorbiaceae = Malpighiales
Cruciferae = Brassicaceae = Brassicales
Cryptaceae = Elatinaceae = Malpighiales
Crypteroniaceae = Myrtales
Cryptocorynaceae = Araceae = Alismatales
Cryptomeriaceae = Cupressaceae = Pinales
Cryptostegiaceae = Apocynaceae = Gentianales
Ctenolophonaceae = Malpighiales
Cucurbitaceae = Cucurbitales
Cunninghamiaceae = Cupressaceae = Pinales
Cunoniaceae = Oxalidales
Cupressaceae = Pinales
Curcumaceae = Zingiberaceae = Zingiberales
Curtisiaceae = Cornales
Cuscutaceae = Convolvulaceae = Solanales
Cyananthaceae = Campanulaceae = Asterales
Cyanastraceae = Tecophilaeaceae = Asparagales
Cynanchaceae = Apocynaceae = Gentianales
Cyanellaceae = Tecophilaeaceae = Asparagales
Cycadaceae = Cycadales
Cyclanthaceae = Pandanales
Cyclantheraceae = Cucurbitaceae = Cucurbitales
Cyclocheilaceae = Orobanchaceae = Lamiales
Cydoniaceae = Rosaceae = Rosales
Cymodoceaceae = Alismatales
Cynaraceae = Asteraceae = Asterales
Cynocrambaceae = Rubiaceae = Gentianales
Cynomoriaceae = Saxifragales
Cyperaceae = Poales
Cyphiaceae = Campanulaceae = Asterales
Cyphocarpaceae = Campanulaceae = Asterales
Cypripediaceae = Orchidaceae = Asparagales
Cyrillaceae = Ericales
Cyrtandraceae = Gesneriaceae = Lamiales
Cyrtanthaceae = Amaryllidaceae = Asparagales
Cytinaceae = Malvales
Dacrycarpaceae = Podocarpaceae = Pinales
Dactylanthaceae = Balanophoraceae = Santalales
Damasoniaceae = Alismataceae = Alismatales
Daphnaceae = Thymelaeaceae = Malvales
Daphniphyllaceae = Saxifragales
Dasypogonaceae = unplaced Commelinid
Datiscaceae = Cucurbitales
Daturaceae = Solanaceae = Solanales
Daucaceae = Apiaceae = Apiales
Davidiaceae = Nyssaceae = Cornales
Davidsoniaceae = Cunoniaceae = Oxalidales
Decaisneaceae = Lardizabalaceae = Ranunculales
Deeringiaceae = Amaranthaceae = Caryophyllales
Degeneriaceae = Magnoliales
Delphiniaceae = Ranunculaceae = Ranunculales
Dendrophthoaceae = Loranthaceae = Santalales
Desfontainiaceae = unplaced near Asterales
Detariaceae = Fabaceae = Fabales
Dialypetalanthaceae = Rubiaceae = Gentianales
Dianellaceae = Hemerocallidaceae = Asparagales
Dianthaceae = Caryophyllaceae = Caryophyllales
Diapensiaceae = Ericales
Dichapetalaceae = Malpighiales
Dichondraceae = Convolvulaceae = Solanales
Diclidantheraceae = Polygalaceae = Fabales
Dicrastylidiaceae = Lamiaceae = Lamiales
Dictamnaceae = Rutaceae = Sapindales
Didiereaceae = Caryophyllales
Didymelaceae = Buxales
Didymocarpaceae = Gesneriaceae = Lamiales
Diegodendraceae = Bixaceae = Malvales
Diervillaceae = Dipsacales
Digitalidaceae = Plantaginaceae = Lamiales
Dilatridaceae = Haemodoraceae = Commelinales
Dilleniaceae = Dilleniales
Dioaceae = Zamiaceae = Cycadales
Dionaeaceae = Droseraceae = Caryophyllales
Dioncophyllaceae = Caryophyllales
Dioscoreaceae = Dioscoreales
Diosmaceae = Rutaceae = Sapindales
Diospyraceae = Ebenaceae = Ericales
Dipentodontaceae = Huerteales
Diphylleiaceae = Berberidaceae = Ranunculales
Diplolaenaceae = Rutaceae = Sapindales
Dipsacaceae = Dipsacales
Dipterocarpaceae = Malvales
Dirachmaceae = Rosales
Disanthaceae = Hamamelidaceae = Saxifragales
Dodonaeaceae = Sapindaceae = Sapindales
Dombeyaceae = Malvaceae = Malvales
Donatiaceae = Stylidiaceae = Asterales
Dorsteniaceae = Moraceae = Rosales
Dortmannaceae = Campanulaceae = Asterales
Doryanthaceae = Asparagales
Drabaceae = Brassicaceae = Brassicales
Dracaenaceae = Ruscaceae = Asparagales
Dracontiaceae = Araceae = Alismatales
Drimyidaceae = Hyacinthaceae = Asparagales
Droseraceae = Caryophyllales
Drosophyllaceae = Caryophyllales
Dryadaceae = Rosaceae = Rosales
Duabangaceae = Lythraceae = Myrtales
Duckeodendraceae = Solanaceae = Solanales
Dulongiaceae = Phyllonomaceae = Aquifoliales
Durantaceae = Verbenaceae = Lamiales
Durionaceae = Malvaceae = Malvales
Dysphaniaceae = Amaranthaceae = Caryophyllales
Ebenaceae = Ericales
Eccremidaceae = Hemerocallidaceae = Asparagales
Ecdeiocoleaceae = Poales
Echiaceae = Boraginaceae = unplaced euasterid I
Echinopaceae = Asteraceae = Asterales
Ehretiaceae = Boraginaceae = unplaced euasterid I
Elaeagnaceae = Rosales
Elaeocarpaceae = Oxalidales
Elegiaceae = Restionaceae = Poales
Elatinaceae = Malpighiales
Ellisiaceae = Boraginaceae = unplaced euasterid I
Ellisiophyllaceae = Plantaginaceae = Lamiales
Elodeaceae = Hydrocharitaceae = Alismatales
Elytranthaceae = Loranthaceae = Santalales
Embeliaceae = Myrsinaceae = Ericales
Emblingiaceae = Brassicales
Emmotaceae = ex-Icacinaceae = Near Garryales
Empetraceae = Ericaceae = Ericales
Encephalartaceae = Zamiaceae = Cycadales
Engelhardtiaceae = Juglandaceae = Fagales
Enhalaceae = Hydrocharitaceae = Alismatales
Epacridaceae = Ericaceae = Ericales
Ephedraceae = Gnetales
Ephemeranthaceae = Commelinaceae = Commelinales
Epilobiaceae = Onagraceae = Myrtales
Epimediaceae = Berberidaceae = Ranunculales
Eragrostidaceae = Poaceae = Poales
Eremolepidaceae = Santalaceae = Santalales
Eremosynaceae = Escalloniaceae = unplaced near Apiales
Ericaceae = Ericales
Erinaceae = Orobanchaceae = Lamiales
Eriocaulaceae = Poales
Eriogonaceae = Polygonaceae = Caryophyllales
Eriospermaceae = Ruscaceae = Asparagales
Erodiaceae = Geraniaceae = Geraniales
Erycibaceae = Convolvulaceae = Solanales
Eryngiaceae = Apiaceae = Apiales
Erysimaceae = Brassicaceae = Brassicales
Erythroniaceae = Liliaceae = Liliales
Erythropalaceae = Santalales
Erythrospermaceae = Achariaceae = Malpighiales
Erythroxylaceae = Malpighiales
Escalloniaceae = unplaced near Apiales
Eschscholziaceae = Papaveraceae = Ranunculales
Eucomidaceae = Hyacinthaceae = Asparagales
Eucommiaceae = Garryales
Eucryphiaceae = Cunoniaceae = Oxalidales
Euonymaceae = Celastraceae = Celastrales
Eupatoriaceae = Asteraceae = Asterales
Euphorbiaceae = Malpighiales
Euphrasiaceae = Orobanchaceae = Lamiales
Euphroniaceae = Malpighiales
Eupomatiaceae = Magnoliales
Eupteleaceae = Ranunculales
Euryalaceae = Nymphaeaceae = Nymphaeales
Eustrephaceae = Laxmanniaceae = Asparagales
Euthemidaceae = Ochnaceae = Malpighiales
Eutocaceae = Boraginaceae = unplaced euasterid I
Exbucklandiaceae = Hamamelidaceae = Saxifragales
Exocarpaceae = Opiliaceae = Santalales
Fabaceae = Fabales
Fagaceae = Fagales
Falcatifoliaceae = Podocarpaceae = Pinales
Ferulaceae = Apiaceae = Apiales
Festucaceae = Poaceae = Poales
Ficaceae = Moraceae = Rosales
Ficoidaceae = Aizoaceae = Caryophyllales
Flacourtiaceae = Salicaceae = Malpighiales
Flagellariaceae = Poales
Flindersiaceae = Rutaceae = Sapindales
Foetidiaceae = Lecythidaceae = Ericales
Forestieraceae = Oleaceae = Lamiales
Fothergillaceae = Hamamelidaceae = Saxifragales
Fouquieriaceae = Ericales
Fragariaceae = Rosaceae = Rosales
Francoaceae = Geraniales
Frangulaceae = Rhamnaceae = Rosales
Frankeniaceae = Caryophyllales
Fraxinaceae = Oleaceae = Lamiales
Fraxinellaceae = Rutaceae = Sapindales
Freycinetiaceae = Pandanaceae = Pandanales
Fritillariaceae = Liliaceae = Liliales
Fuchsiaceae = Onagraceae = Myrtales
Fumariaceae = Papaveraceae = Ranunculales
Funkiaceae = Agavaceae = Asparagales
Gaiadendraceae = Loranthaceae = Santalales
Galacaceae = Diapensiaceae = Ericales
Galanthaceae = Amaryllidaceae = Asparagales
Galaxiaceae = Iridaceae = Asparagales
Galedupaceae = Fabaceae = Fabales
Galeniaceae = Aizoaceae = Caryophyllales
Galiaceae = Rubiaceae = Gentianales
Garciniaceae = Clusiaceae = Malpighiales
Gardeniaceae = Rubiaceae = Gentianales
Gardneriaceae = Loganiaceae = Gentianales
Garryaceae = Garryales
Geissolomataceae = Crossosomatales
Geitonoplesiaceae = Hemerocallidaceae = Asparagales
Gelsemiaceae = Gentianales
Geniostomaceae = Loganiaceae = Gentianales
Gentianaceae = Gentianales
Geonomataceae = Arecaceae = Arecales
Geosiridaceae = Iridaceae = Asparagales
Geraniaceae = Geraniales
Gerrardinaceae = Huerteales
Gesneriaceae = Lamiales
Gethyllidaceae = Amaryllidaceae = Asparagales
Gillesiaceae = Alliaceae = Asparagales
Ginalloaceae = Santalaceae = Santalales
Ginkgoaceae = Ginkgoales
Gisekiaceae = near Phytolaccaceae = Caryophyllales
Gladiolaceae = Iridaceae = Asparagales
Glaucidiaceae = Ranunculaceae = Ranunculales
Glechomaceae = Lamiaceae = Lamiales
Glinaceae = Molluginaceae = Caryophyllales
Globulariaceae = Plantaginaceae = Lamiales
Gnaphaliaceae = Asteraceae = Asterales
Gnetaceae = Gnetales
Goetzeaceae = Solanaceae = Solanales
Gomortegaceae = Laurales
Gomphiaceae = Ochnaceae = Malpighiales
Gomphrenaceae = Amaranthaceae = Caryophyllales
Gonystylaceae = Thymelaeaceae = Malvales
Goodeniaceae = Asterales
Gordoniaceae = Theaceae = Ericales
Gouaniaceae = Rhamnaceae = Rosales
Goupiaceae = Malpighiales
Gramineae = Poaceae = Poales
Gratiolaceae = Plantaginaceae = Lamiales
Grewiaceae = Malvaceae = Malvales
Greyiaceae = Melianthaceae = Geraniales
Grielaceae = Neuradaceae = Malvales
Griseliniaceae = Apiales
Gronoviaceae = Loasaceae = Cornales
Grossulariaceae = Saxifragales
Grubbiaceae = Cornales
Guaiacanaceae = Ebenaceae = Ericales
Guamatelaceae = Crossosomatales
Guettardaceae = Rubiaceae = Gentianales
Gunneraceae = Gunnerales
Gustaviaceae = Lecythidaceae = Ericales
Guttiferae = Clusiaceae = Malpighiales
Gyrocarpaceae = Hernandiaceae = Laurales
Gyrostemonaceae = Brassicales
Hachetteaceae = Balanophoraceae = Santalales
Haemanthaceae = Amaryllidaceae = Asparagales
Haemodoraceae = Commelinales
Halesiaceae = Styracaceae = Ericales
Hallieraceae = Stilbaceae = Lamiales
Halocarpaceae = Podocarpaceae = Pinales
Halophilaceae = Hydrocharitaceae = Alismatales
Halophytaceae = Caryophyllales
Haloragaceae = Saxifragales
Hamamelidaceae = Saxifragales
Hanguanaceae = Commelinales
Haptanthaceae = Buxales
Harmandaceae = "Olacaceae" = Santalales
Hebenstretiaceae = Scrophulariaceae = Lamiales
Hectorellaceae = Montiaceae = Caryophyllales
Hederaceae = Araliaceae = Apiales
Hedyosmaceae = Chloranthaceae = Chloranthales
Hedyotidaceae = Rubiaceae = Gentianales
Hedysaraceae = Fabaceae = Fabales
Heisteriaceae = Erythropalaceae = Santalales
Heleniaceae = Asteraceae = Asterales
Heliamphoraceae = Sarrraceniaceae = Ericales
Helianthaceae = Asteraceae = Asterales
Helianthemaceae = Cistaceae = Malvales
Helichrysaceae = Asteraceae = Asterales
Heliconiaceae = Zingiberales
Helicteraceae = Malvaceae = Malvales
Heliotropiaceae = Boraginaceae = unplaced euasterid I
Helleboraceae = Ranunculaceae = Ranunculales
Heloniadaceae = Melanthiaceae = Liliales
Helosidaceae = Balanophoraceae = Santalales
Helwingiaceae = Aquifoliales
Hemerocallidaceae = Asparagales
Hemimeridaceae = Plantaginaceae = Lamiales
Hemiphylacaceae = Asparagaceae = Asparagales
Henriqueziaceae = Rubiaceae = Gentianales
Henslowiaceae = Crypteroniaceae = Myrtales
Hermanniaceae = Malvaceae = Malvales
Hernandiaceae = Laurales
Herniariaceae = Caryophyllaceae = Caryophyllales
Herreriaceae = Agavaceae = Asparagales
Hesperocallidaceae = Agavaceae = Asparagales
Heterantheraceae = Pontederiaceae = Commelinales
Heteropyxidaceae = Myrtaceae = Myrtales
Heterostylaceae = Juncaginaceae = Alismatales
Hibbertiaceae = Dilleniaceae = Dilleniales
Hibiscaceae = Malvaceae = Malvales
Hilleriaceae = Phytolaccaceae = Caryophyllales
Himantandraceae = Magnoliales
Hippocastanaceae = Sapindaceae = Sapindales
Hippocrateaceae = Celastraceae = Celastrales
Hippomanaceae = Euphorbiaceae = Malpighiales
Hippophaeaceae = Elaeagnaceae = Rosales
Hippuridaceae = Plantaginaceae = Lamiales
Hirtellaceae = Chrysobalanaceae = Malpighiales
Holacanthaceae = Simaroubaceae = Sapindales
Homaliaceae = Salicaceae = Malpighiales
Hopkinsiaceae = Anarthriaceae = Poales
Hoplestigmataceae = unplaced eudicot
Hordeaceae = Poaceae = Poales
Hornschuchiaceae = Annonaceae = Magnoliales
Hortensiaceae = Hydrangeaceae = Cornales
Hortoniaceae = Monimiaceae = Laurales
Hostaceae = Agavaceae = Asparagales
Houstoniaceae = Rubiaceae = Gentianales
Huaceae = (near) Oxalidales
Huerteaceae = Tapisciaceae = Huerteales
Hugoniaceae = Linaceae = Malpighiales
Humbertiaceae = Convolvulaceae = Solanales
Humiriaceae = Malpighiales
Hyacinthaceae = Asparagales
Hydatellaceae = Poales
Hydnoraceae = Piperales
Hydrangeaceae = Cornales
Hydrastidaceae = Ranunculaceae = Ranunculales
Hydrillaceae = Hydrocharitaceae = Alismatales
Hydrocharitaceae = Alismatales
Hydrocotylaceae = Araliaceae = Apiales
Hydrogetonaceae = Potamogetonaceae = Alismatales
Hydroleaceae = Solanales
Hydropeltidaceae = Cabombaceae = Nymphaeales
Hydrophylacaceae = Rubiaceae = Gentianales
Hydrophyllaceae = Boraginaceae = unplaced euasterid I
Hydrostachyaceae = Cornales
Hymenocardiaceae = Phyllanthaceae = Malpighiales
Hyoscyamaceae = Solanaceae = Solanales
Hypecoaceae = Papaveraceae = Ranunculales
Hyperantheraceae = Moringaceae = Brassicales
Hypericaceae = Malpighiales
Hypopityaceae = Ericaceae = Ericales
Hypoxidaceae = Asparagales
Hypseocharitaceae = Geraniaceae = Geraniales
Icacinaceae = Near Garryales
Idiospermaceae = Calycanthaceae = Laurales
Illecebraceae = Caryophyllaceae = Caryophyllales
Ilicaceae = Aquifoliaceae = Aquifoliales
Illiciaceae = Austrobaileyales
Illigeraceae = Hernandiaceae = Laurales
Impatientaceae = Balsaminaceae = Ericales
Imperatoriaceae = Apiaceae = Apiales
Inocarpaceae = Fabaceae = Fabales
Inulaceae = Asteraceae = Asterales
Ionidiaceae = Violaceae = Malpighiales
Iriarteaceae = Arecaceae = Arecales
Iridaceae = Asparagales
Irvingiaceae = Malpighiales
Isnardiaceae = Onagraceae = Myrtales
Isophysidaceae = Iridaceae = Asparagales
Iteaceae = Saxifragales
Ixerbaceae = Crossosomatales
Ixiaceae = Iridaceae = Asparagales
Ixioliriaceae = Asparagales
Ixonanthaceae = Malpighiales
Jalapaceae = Nyctaginaceae = Caryophyllales
Jamboliferaceae = Rutaceae = Sapindales
Japonoliriaceae = Petrosaviaceae = Petrosaviales
Jasionaceae = Campanulaceae = Asterales
Jasminiaceae = Oleaceae = Lamiales
Johnsoniaceae = Hemerocallidaceae = Asparagales
Joinvilleaceae = Poales
Juglandaceae = Fagales
Julianiaceae = Anacardiaceae = Sapindales
Juncaceae = Poales
Juncaginaceae = Alismatales
Juniperaceae = Cupressaceae = Pinales
Jussiaeaceae = Onagraceae = Myrtales
Justiciaceae = Acanthaceae = Lamiales
Kadsuraceae = Illiciaceae = Austrobaileyales
Kaliphoraceae = Montiniaceae = Solanales
Kalmiaceae = Ericaceae = Ericales
Kaniaceae = Myrtaceae = Myrtales
Kiggelariaceae = Achariaceae = Malpighiales
Kingdoniaceae = Circaeasteraceae = Ranunculales
Kingiaceae = Dasypogonaceae = unplaced Commelinid
Kirengeshomaceae = Hydrangeaceae = Cornales
Kirkiaceae = Sapindales
Kobresiaceae = Cyperaceae = Poales
Koeberliniaceae = Brassicales
Koelreuteriaceae = Sapindaceae = Sapindales
Krameriaceae = Zygophyllales
Labiatae = Lamiaceae = Lamiales
Lacandoniaceae = Triuridaceae = Pandanales
Lachenaliaceae = Hyacinthaceae = Asparagales
Lacistemataceae = Malpighiales
Lactoridaceae = Piperaceae = Piperales
Lactucaceae = Asteraceae = Asterales
Lagerstroemiaceae = Lythraceae = Myrtales
Lamiaceae = Lamiales
Lampsanaceae = Asteraceae = Asterales
Lanariaceae = Asparagales
Langsdorffiaceae = Balanophoraceae = Santalales
Lantanaceae = Verbenaceae = Lamiales
Lapageriaceae = Philesiaceae = Liliales
Lardizabalaceae = Ranunculales
Lasiopetalaceae = Malvaceae = Malvales
Lauraceae = Laurales
Lawsoniaceae = Lythraceae = Myrtales
Laxmanniaceae = Asparagales
Lecythidaceae = Ericales
Ledaceae = Ericaceae = Ericales
Ledocarpaceae = Geraniales
Leeaceae = Vitaceae = Vitales
Leguminosae = Fabaceae = Fabales
Leitneriaceae = Simaroubaceae = Sapindales
Lemnaceae = Araceae = Alismatales
Lennoaceae = Boraginaceae = unplaced euasterid I
Lentibulariaceae = Lamiales
Lentiscaceae = Anacardiaceae = Sapindales
Leoniaceae = Violaceae = Malpighiales
Leonticaceae = Berberidaceae = Ranunculales
Lepidobotryaceae = Celastrales
Lepidocarpaceae = Proteaceae = Proteales
Lepidocaryaceae = Arecaceae = Arecales
Lepidocerataceae = Santalaceae = Santalales
Leptaulaceae = Cardiopteridaceae = Aquifoliales
Leptospermaceae = Myrtaceae = Myrtales
Lepturaceae = Poaceae = Poales
Lepuropetalaceae = Parnassiaceae = Celastrales
Leucojaceae = Amaryllidaceae = Asparagales
Leuctenbergiaceae = Cactaceae = Caryophyllales
Libocedraceae = Cupressaceae = Pinales
Licaniaceae = Chrysobalanaceae = Malpighiales
Ligustraceae = Oleaceae = Lamiales
Lilaeaceae = Juncaginaceae = Alismatales
Liliaceae = Liliales
Limeaceae = Caryophyllales
Limnanthaceae = Brassicales
Limnocharitaceae = Alismatales
Limodoraceae = Orchidaceae = Asparagales
Limoniaceae = Plumbaginaceae = Caryophyllales
Limosellaceae = Scrophulariaceae = Lamiales
Linaceae = Malpighiales
Linariaceae = Plantaginaceae = Lamiales
Lindenbergiaceae = Orobanchaceae = Lamiales
Linderniaceae = Lamiales
Lindleyaceae = Rosaceae = Rosales
Linnaeaceae = Dipsacales
Liparidaceae = Orchidaceae = Asparagales
Lippayaceae = Rubiaceae = Gentianales
Liriaceae = Liliaceae = Liliales
Liriodendraceae = Magnoliaceae = Magnoliales
Lissocarpaceae = Ebenaceae = Ericales
Littorellaceae = Plantaginaceae = Lamiales
Loasaceae = Cornales
Lobeliaceae = Campanulaceae = Asterales
Loganiaceae = Gentianales
Lomandraceae = Laxmanniaceae = Asparagales
Loniceraceae = Caprifoliaceae = Dipsacales
Lopeziaceae = Onagraceae = Myrtales
Lophiocarpaceae = Caryophyllales
Lophiolaceae = Nartheciaceae = Dioscoreales
Lophiraceae = Ochnaceae = Malpighiales
Lophophytaceae = Balanophoraceae = Santalales
Lophopyxidaceae = Malpighiales
Loranthaceae = Santalales
Lotaceae = Fabaceae = Fabales
Lowiaceae = Zingiberales
Lupulaceae = Cannabaceae = Rosales
Luxemburgiaceae = Ochnaceae = Malpighiales
Luzuriagaceae = Liliales
Lychnidaceae = Caryophyllaceae = Caryophyllales
Lyciaceae = Solanaceae = Solanales
Lyginiaceae = Anarthriaceae = Poales
Lygodisodeaceae = Rubiaceae = Gentianales
Lysimachiaceae = Myrsinaceae = Ericales
Lythraceae = Myrtales
Macarisiaceae = Rhizophoraceae = Malpighiales
Mackinlayaceae = Apiaceae = Apiales
Madiaceae = Asteraceae = Asterales
Maesaceae = Ericales
Magnoliaceae = Magnoliales
Malaceae = Rosaceae = Rosales
Malesherbiaceae = Malpighiales
Malortieaceae = Arecaceae = Arecales
Malpighiaceae = Malpighiales
Malvaceae = Malvales
Mangiaceae = Rhizophoraceae = Malpighiales
Manicariaceae = Arecaceae = Arecales
Mapaniaceae = Cyperaceae = Poales
Marantaceae = Zingiberales
Marathraceae = Podostemaceae = Malpighiales
Marcgraviaceae = Ericales
Martyniaceae = Lamiales
Mastixiaceae = Nyssaceae = Cornales
Matricariaceae = Asteraceae = Asterales
Maundiaceae = Juncaginaceae = Alismatales
Mayacaceae = Poales
Medeolaceae = Liliaceae = Liliales
Medusagynaceae = Malpighiales
Medusandraceae = Medusandraceae = Saxifragales
Melaleucaceae = Myrtaceae = Myrtales
Melampyraceae = Orobanchaceae = Lamiales
Melanophyllaceae = Torricelliaceae = Apiales
Melanthiaceae = Liliales
Melastomataceae = Myrtales
Meliaceae = Sapindales
Melianthaceae = Geraniales
Melicaceae = Poaceae = Poales
Meliosmaceae = Sabiaceae = Sabiales
Melittidaceae = Lamiaceae = Lamiales
Melochiaceae = Malvaceae = Malvales
Memecylaceae = Melastomataceae = Myrtales
Mendonciaceae = Acanthaceae = Lamiales
Menispermaceae = Ranunculales
Menthaceae = Lamiaceae = Lamiales
Menyanthaceae = Asterales
Menzieziaceae = Ericaceae = Ericales
Mercurialaceae = Euphorbiaceae = Malpighiales
Merenderaceae = Colchicaceae = Liliales
Mesembryaceae = Aizoaceae = Caryophyllales
Mesembryanthemaceae = Aizoaceae = Caryophyllales
Mespilaceae = Rosaceae = Rosales
Metasequioaceae = Cupressaceae = Pinales
Metteniusaceae = Near Garryales
Meyeniaceae = Acanthaceae = Lamiales
Miconiaceae = Melastomataceae = Myrtales
Micrantheaceae = Picrodendraceae = Malpighiales
Microbiotaceae = Cupressaceae = Pinales
Microcachrydaceae = Podocarpaceae = Pinales
Microcycadaceae = Zamiaceae = Cycadales
Miliaceae = Poaceae = Poales
Milulaceae = Alliaceae = Asparagales
Mimosaceae = Fabaceae = Fabales
Mirabilidaceae = Nyctaginaceae = Caryophyllales
Misodendraceae = Santalales
Mitrastemonaceae = Ericales
Miyoshiaceae = Petrosaviaceae = Petrosaviales
Modeccaceae = Passifloraceae = Malpighiales
Molluginaceae = Caryophyllales
Monimiaceae = Laurales
Monodoraceae = Annonaceae = Magnoliales
Monotaceae = Dipterocarpaceae = Malvales
Monotropaceae = Ericaceae = Ericales
Montiaceae = Caryophyllales
Montiniaceae = Solanales
Moraceae = Rosales
Morinaceae = Dipsacales
Moringaceae = Brassicales
Mouririaceae = Memecylaceae = Myrtales
Moutabeaceae = Polygalaceae = Fabales
Muntingiaceae = Malvales
Musaceae = Zingiberales
Mutisiaceae = Asteraceae = Asterales
Myodocarpaceae = Apiales
Myoporaceae = Scrophulariaceae = Lamiales
Myricaceae = Fagales
Myriophyllaceae = Haloragaceae = Saxifragales
Myristicaceae = Magnoliales
Myrobalanaceae = Combretaceae = Myrtales
Myrothamnaceae = Gunnerales
Myrrhiniaceae = Myrtaceae = Myrtales
Myrsinaceae = Ericales
Myrtaceae = Myrtales
Mystropetalaceae = Balanophoraceae = Santalales
Nageiaceae = Podocarpaceae = Pinales
Najadaceae = Hydrocharitaceae = Alismatales
Nandinaceae = Berberidaceae = Ranunculales
Napoleonaceae = Lecythidaceae = Ericales
Nartheciaceae = Dioscoreales
Narcissiaceae = Amaryllidaceae = Asparagales
Nardaceae = Poaceae = Poales
Nassauviaceae = Asteraceae = Asterales
Naucleaceae = Rubiaceae = Gentianales
Nectaropetalaceae = Erythroxylaceae = Malpighiales
Neilliaceae = Rosaceae = Rosales
Nelsoniaceae = Acanthaceae = Lamiales
Nelumbonaceae = Proteales
Nemacladaceae = Campanulaceae = Asterales
Neocallitropsidaceae = Cupressaceae = Pinales
Neottiaceae = Orchidaceae = Asparagales
Nepenthaceae = Caryophyllales
Nepetaceae = Lamiaceae = Lamiales
Nesogenaceae = Orobanchaceae = Lamiales
Neuradaceae = Malvales
Neumanniaceae = Aphloiaceae = Crossosomatales
Neuwiediaceae = Orchidaceae = Asparagales
Nhandirobaceae = Cucurbitaceae = Cucurbitales
Nicotaniaceae = Solanaceae = Solanales
Nigellaceae = Ranunculaceae = Ranunculales
Nitrariaceae = Sapindales
Nolanaceae = Solanaceae = Solanales
Nolinaceae = Ruscaceae = Asparagales
Nonateliaceae = Rubiaceae = Gentianales
Nopaleaceae = Cactaceae = Caryophyllales
Nothofagaceae = Fagales
Nupharaceae = Nymphaeaceae = Nymphaeales
Nuytsiaceae = Loranthaceae = Santalales
Nyctaginaceae = Caryophyllales
Nyctanthaceae = Oleaceae = Lamiales
Nymphaeaceae = Nymphaeales
Nypaceae = Arecaceae = Arecales
Nyssaceae = Cornales
Obolariaceae = Gentianaceae = Gentianales
Ochnaceae = Malpighiales
Ochranthaceae = Staphyleaceae = Crossosomatales
Octoknemaceae = Erythropalaceae = Santalales
Oenotheraceae = Onagraceae = Myrtales
Oftiaceae = Scrophulariaceae = Lamiales
"Olacaceae" = Santalales
Oleaceae = Lamiales
Oliniaceae = Myrtales
Onagraceae = Myrtales
Oncothecaceae = Near Garryales, euasterid I
Onosmaceae = Boraginaceae = unplaced euasterid I
Operculariaceae = Rubiaceae = Gentianales
Ophiopogonaceae = Ruscaceae = Asparagales
Ophioxylaceae = Apocynaceae = Gentianales
Ophiraceae = Grubbiaceae = Cornales
Ophrydaceae = Orchidaceae = Asparagales
Opiliaceae = Santalales
Oporanthaceae = Amaryllidaceae = Asparagales
Opuntiaceae = Cactaceae = Caryophyllales
Orchidaceae = Asparagales
Ornithogalaceae = Hyacinthaceae = Asparagales
Ornithrophaceae = Sapindaceae = Sapindales
Orobanchaceae = Lamiales
Orontiaceae = Araceae = Alismatales
Ortegaceae = Caryophyllaceae = Caryophyllales
Oryzaceae = Poaceae = Poales
Osyridaceae = Santalaceae = Santalales
Oxalidaceae = Oxalidales
Oxycladaceae = Plantaginaceae = Lamiales
Oxycoccaceae = Ericaceae = Ericales
Oxystylidaceae = Brassicaceae = Brassicales
Pachysandraceae = Buxaceae = Buxales
Pacouriaceae = Apocynaceae = Gentianales
Paeoniaceae = Saxifragales
Pagamaeaceae = Rubiaceae = Gentianales
Paivaeusaceae = Picrodendraceae = Malpighiales
Palmae = Arecaceae = Arecales
Pancratiaceae = Amaryllidaceae = Asparagales
Pandaceae = Malpighiales
Pandanaceae = Pandanales
Pangiaceae = Achariaceae = Malpighiales
Panicaceae = Poaceae = Poales
Papaveraceae = Ranunculales
Papayaceae = Caricaceae = Brassicales
Papilionaceae = Fabaceae = Fabales
Pappophoraceae = Poaceae = Poales
Papyraceae = Cyperaceae = Poales
Paracryphiaceae = unplaced near Dipsacales
Parasitaxaceae = Podocarpaceae = Pinales
Parianaceae = Poaceae = Poales
Paridaceae = Melanthiaceae = Liliales
Parnassiaceae = Celastrales
Paronychiaceae = Caryophyllaceae = Caryophyllales
Paropsiaceae = Passifloraceae = Malpighiales
Parrotiaceae = Hamamelidaceae = Saxifragales
Partheniaceae = Asteraceae = Asterales
Passifloraceae = Malpighiales
Pastinacaceae = Apiaceae = Apiales
Paulliniaceae = Sapindaceae = Sapindales
Paulowniaceae = Lamiales
Paviaceae = Sapindaceae = Sapindales
Pectiantiaceae = Saxifragaceae = Saxifragales
Pedaliaceae = Lamiales
Pedicularidaceae = Orobanchaceae = Lamiales
Peganaceae = Nitrariaceae = Sapindales
Peliosanthaceae = Ruscaceae = Asparagales
Pellicieraceae = Tetrameristaceae = Ericales
Penaeaceae = Myrtales
Pennantiaceae = Apiales
Pentadiplandraceae = Brassicales
Pentapetaceae = Malvaceae = Malvales
Pentaphragmataceae = Asterales
Pentaphylacaceae = Ericales
Pentastemonaceae = Stemonaceae = Pandanales
Penthoraceae = Saxifragales
Peperomiaceae = Piperaceae = Piperales
Peraceae = Malpighiales
Perdiciaceae = Asteraceae = Asterales
Peridiscaceae = Saxifragales
Periplocaceae = Apocynaceae = Gentianales
Peripterygiaceae = Cardiopteridaceae = Aquifoliales
Perseaceae = Lauraceae = Laurales
Persicariaceae = Polygonaceae = Caryophyllales
Petermanniaceae = Liliales
Petiveriaceae = Phytolaccaceae = Caryophyllales
Petreaceae = Verbenaceae = Lamiales
Petrosaviaceae = Petrosaviales
Phalaridaceae = Poaceae = Poales
Phaleriaceae = Thymelaeaceae = Malvales
Pharaceae = Poaceae = Poales
Pharnaceaceae = Molluginaceae = Caryophyllales
Phaseolaceae = Fabaceae = Fabales
Phellinaceae = Asterales
Phelypaeaceae = Orobanchaceae = Lamiales
Pherosphaeraceae = Podocarpaceae = Pinales
Philadelphaceae = Hydrangeaceae = Cornales
Philesiaceae = Liliales
Philippodendraceae = Malvaceae = Malvales
Philocrenaceae = Podostemaceae = Malpighiales
Philydraceae = Commelinales
Phoeniciaceae = Arecaceae = Arecales
Phoradendraceae = Santalaceae = Santalales
Phormiaceae = Hemerocallidaceae = Asparagales
Phrymaceae = Lamiales
Phylicaceae = Rhamnaceae = Rosales
Phyllanthaceae = Malpighiales
Phyllocladaceae = Podocarpaceae = Pinales
Phyllonomaceae = Aquifoliales
Physenaceae = Caryophyllales
Phytelephaceae = Arecaceae = Arecales
Phytocrenaceae = Icacinaceae = near Garryales
Phytolaccaceae = Caryophyllales
Piceaceae = Pinaceae = Pinales
Picramniaceae = unplaced rosid
Picridaceae = Asteraceae = Asterales
Picrodendraceae = Malpighiales
Pilocarpaceae = Rutaceae = Sapindales
Pinaceae = Pinales
Pinguiculaceae = Lentibulariaceae = Lamiales
Piperaceae = Piperales
Piriquetaceae = Turneraceae = Malpighiales
Pisoniaceae = Nyctaginaceae = Caryophyllales
Pistaciaceae = Anacardiaceae = Sapindales
Pistiaceae = Araceae = Alismatales
Pittosporaceae = Apiales
Plagianthaceae = Malvaceae = Malvales
Plagiopteraceae = Celastraceae = Celastrales
Plantaginaceae = Lamiales
Platanaceae = Proteales
Platycaryaceae = Juglandaceae = Fagales
Platyspermataceae = Alseuosmiaceae = Asterales
Plectroniaceae = Oliniaceae = Myrtales
Pleurisanthaceae = Icacinaceae = near Garryales
Platystemonaceae = Papaveraceae = Ranunculales
Plocospermataceae = Lamiales
Plumbaginaceae = Caryophyllales
Plumeriaceae = Apocynaceae = Gentianales
Poaceae = Poales
Podoaceae = Anacardiaceae = Sapindales
Podocarpaceae = Pinales
Podophyllaceae = Berberidaceae = Ranunculales
Podostemaceae = Malpighiales
Polemoniaceae = Ericales
Poliothyrsidaceae = Salicaceae = Malpighiales
Polpodaceae = Molluginaceae = Caryophyllales
Polycarpaeaceae = Caryophyllaceae = Caryophyllales
Polycnemaceae = Amaranthaceae = Caryophyllales
Polygalaceae = Fabales
Polygonaceae = Caryophyllales
Polygonanthaceae = Anisophylleaceae = Cucurbitales
Polygonataceae = Ruscaceae = Asparagales
Polyosmaceae = unplaced near Apiales
Polypremaceae = Tetrachondraceae = Lamiales
Pontederiaceae = Commelinales
Poranaceae = Convolvulaceae = Solanales
Porantheraceae = Phyllanthaceae = Malpighiales
Portulacaceae = Caryophyllales
Portulacariaceae = Didiereaceae = Caryophyllales
Posidoniaceae = Alismatales
Potaliaceae = Gentianaceae = Gentianales
Potamogetonaceae = Alismatales
Potentillaceae = Rosaceae = Rosales
Poteriaceae = Rosaceae = Rosales
Pothaceae = Araceae = Alismatales
Pottingeriaceae = Celastrales
Primulaceae = Ericales
Prioniaceae = Thurniaceae = Poales
Prionotaceae = Ericaceae = Ericales
Prockiaceae = Salicaceae = Malpighiales
Proteaceae = Proteales
Prumnopityaceae = Podocarpaceae = Pinales
Prunaceae = Rosaceae = Rosales
Pseliaceae = Menispermaceae = Ranunculales
Pseudanthaceae = Picrodendraceae = Malpighiales
Pseudophoeniciaceae = Arecaceae = Arecales
Psiloxylaceae = Myrtaceae = Myrtales
Psittacanthaceae = Loranthaceae = Santalales
Psychotriaceae = Rubiaceae = Gentianales
Psylliaceae = Plantaginaceae = Lamiales
Ptaeroxylaceae = Rutaceae = Sapindales
Pteleaceae = Rutaceae = Sapindales
'Pteleocarpaceae' = ?Gelsemiaceae = Gentianales
Pteridophyllaceae = Papaveraceae = Ranunculales
Pterisanthaceae = Vitaceae = Vi