| Family ID | Order ID | Name | Authorities | Num. of Familes | Num. of Genera | Num. of Species | Geo-Location | Growth/Forms | Overview |
| 349 | 72 | Acanthaceae | Juss., nom. cons. | Acanthus Family | 250 | 3450 | |||
| 486 | 93 | Acantholimon | Bois. | 165 | Eastern Mediterranean to Central Asia. 1 species in Europe. | Grows in gravelly deserts & mountains | |||
| 325 | 70 | Aceraceae | Juss., nom. cons. | Maple Family | 2 | 113 | All species are trees | ||
| 55 | 19 | Achatocarpaceae | Heimerl, nom. cons. | 2 | 6 | ||||
| 122 | 31 | Actinidiaceae | Van Tiegh. | 3 | 350 | Tropical & warm areas & E. Asian mountains, Australia | Tree/Shrub/Liane | ||
| 115 | 29 | Adoxaceae | Trautv. | Viburnnum Family | 3 | 5 | Temperate, North temperate | Herb | |
| 269 | 61 | Aegicerataceae | Blume | 1 | 3 | Paleotropical and Australian | Tree/Shrub | Myrsinaceae. Small trees or shrubs | |
| 66 | 21 | Aextoxicaceae | Engl. and Gilg | 1 | 1 | Chile | Tree | Large trees | |
| 24 | 12 | Agavaceae | Endl. | Agave Family | 13 | 210 | Holarctic and Neotropical | Shrub/Herb | Herbs, or shrubs, or ‘arborescent’ |
| 326 | 70 | Aitoniaceae | (Harv.) Harv. & Sond. | 1 | 1 | South Africa | Tree/Shrub | Meliaceae. Small trees, or shrubs | |
| 43 | 18 | Akaniaceae | Stapf | 1 | 1 | Eastern Australia | Tree | Small trees. Freshly cut wood and bark has a turniplike odour) | |
| 78 | 23 | Alangiaceae | DC. | 2 | 21 | Widespread tropical | Liane/Shrub/Tree | Trees, or shrubs (sometimes spiny), or lianas (occasionally) | |
| 166 | 40 | Altingiaceae | Lindl. | 3 | 10 | Asia Minor, temperate and tropical Southeast Asia, North and Central America | Tree | See Hamamelidaceae. All species are trees, some very large | |
| 238 | 52 | Alzateaceae | S. Graham | 1 | 1 | Tropical and warm areas, Esp. Africa. | Tree/Shrub | Crypteroniaceae. Small trees or shrubs to 20 meters. | |
| 56 | 19 | Amaranthaceae | Juss. | Cockscomb Family | 74 | 850 | Temperate, sub-tropical, and tropical. Widespread | Shrub/Herb | Shrubs (usually), or herbs. |
| 432 | 1 | Amentotaxaceae | Kudo & Yamam. | Cephalotaxaceae | |||||
| 327 | 70 | Anacardiaceae | Lindl. | Cashew Family | 70 | 875 | Widespread in the tropics, also Mediterranean, E. Asia, America | Tree/Shrub | |
| 257 | 53 | Ancistrocladaceae | Planch. | 1 | 20 | Old World tropical areas. Africa to W. Malaysia | Liane | Lianas. Climbing; stem twiners or scrambling | |
| 79 | 23 | Anisophylleaceae | (Schimp.) Ridl. | 4 | 36 | Tropical, widespread. | Tree/Shrub | All species are trees. Some doubt which order it should fit under. Also under Rosales. | |
| 170 | 41 | Annonaceae | Juss. | Custard Apple or Annona Family | 130 | 2300 | Sub-tropical and tropical. Widespread, especially Old World. | Tree/Shrub/Liane | Properly listed under Iliciales |
| 147 | 37 | Antoniaceae | Hutch or (Endl.) J.G. Agardh | 4 | 8 | Tropical | Tree/Shrub/Liane | Strychnaceae. Small to large trees, or shrubs, or lianas | |
| 80 | 23 | Apocynaceae | Juss. | Dogbane Family | 180 | 1850 | Temperate (a few), or sub-tropical to tropical (mainly). | Tree/Shrub/Liane/Herb | Usually lianes, less often trees, shrubs, herbs. Includes Asceopiadaceae |
| 67 | 74 | Aquifoliaceae | Bartl. | Holly Family | 4 | 600 | Temperate, sub-tropical, and tropical. Widespread | Trees, Shrubs | Listings show this also Under Celestrales, Icacinales. Small trees, or shrubs |
| 21 | 9 | Araceae | Juss. | 106 | 2550 | Sub-tropical, or tropical, or temperate (relatively few). Widespread. | Herb/Shrub | Shrubs, or herbs, or ‘arborescent’ | |
| 19 | 7 | Araliaceae | Juss. | Ginseng Family | 47 | 1325 | Widespread, but especially Indomalaya and tropical America | some researchers group Apiaceae + Araliaceae = Umbelliferae | |
| 81 | 23 | Aralidaceae | Philipson & Stone | 1 | 1 | Thailand, Malaysia, Singapore, Sumatra, Anambas, Borneo | Tree/Shrub | See Cornaceae. Trees, or shrubs, or lianas, or herbs (rarely). Small, Artocarpus-like trees, or shrubs. To 15 ��17 m high | |
| 431 | 1 | Araucariaceae | Henkel & W. Hochst. | Araucaria Family | 3 | 40 | Literature also lists Araucariaceae under Pinales | ||
| 23 | 11 | Aristolochiaceae | Juss. | Birthwort Family | 12 | 600 | Temperate (warm), or sub-tropical to tropical. Widespread, except Australasia. | Herb/Liane/Shrub | Shrubs, or lianas, or herbs (mostly woody vines) |
| 149 | 37 | Asclepiadaceae | R.Br. | Milkweed Family | 248 | 2800 | Warm & tropical areas, esp. Africa | Tree/Shrub/Liane/Herb | Climbers & herbs, rarely shrubby or trees |
| 488 | 13 | Asteraceae | Martinov | Asteraceae = Compositae. Go To Compositae for details. | |||||
| 366 | 74 | Asteranthaceae | Knuth | 1 | 1 | Neotropical. Tropical. Northern Brazil | Tree | See Lecythidaceae. Only genus, Asteranthos | |
| 367 | 74 | Asteropeiaceae | Takhtadj. or (Syzyszyl.) Reveal & Hoogl. | 1 | 7 | Paleotropical. Tropical. Madagascar. | Tree/Shrub | See Theaceae, Small trees, or shrubs (scrambling) | |
| 180 | 44 | Atherospermataceae | R. Br. | 6 | 12 | Temperate to tropical. Australia, New Guinea, New Zealand, New Caledonia, Chile. | Tree/Shrub | See Monimiaceae | |
| 158 | 38 | Averrhoaceae | Hutch. | 3 | 16 | Tropical. Madagascar, Western Malaysia, tropical South America | Tree/Shrub/Liane | Oxidaliceae. Small trees, or shrubs, or lianas | |
| 175 | 43 | Avicenniaceae | Endl. ex Schnizl. | 1 | 11 | Tropical coasts | Tree/Shrub | Small mangrove trees and shrubs | |
| 159 | 38 | Balanitaceae | Endl. | 1 | 25 | Tropical Africa to Burma. / | Tree/Shrub | Small trees, or shrubs | |
| 31 | 16 | Balanopaceae | Benth. | 1 | 12 | Sub-tropical to tropical. Queensland, New Caledonia, Fiji. | Tree | only genus, Balanops. | |
| 28 | 14 | Balanopsidaceae | 1 | 9 | #NAME? | ||||
| 396 | 76 | Barbeyaceae | Rendle | 1 | 1 | Sub-tropical. North East Africa, Arabia | Tree | Small, Olea-like trees. Barbeya oleoides the only representative | |
| 369 | 74 | Barringtoniaceae | Rudolphi | 6 |