In the APG and APG II system for classification of angiosperms, the names eudicots or tricolpates are applied to a clade, a monophyletic group. This clade includes most of the (former) dicotyledons. The remaining, and more primitive, (former) dicots are sometimes referred to as palaeodicots ("palaeo−" = old) even though this is a paraphyletic group. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms. ... Divisions Green algae Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants Adiantum pedatum... A modern system of plant taxonomy, the APG II system of plant classification was published in 2003 by the Angiosperm Phylogeny Group, APG, in Angiosperm Phylogeny Group (2003). ... Classes Magnoliopsida - Dicots Liliopsida - Monocots The flowering plants (also angiosperms or Magnoliophyta) are one of the major groups of modern plants, comprising those that produce seeds in specialized reproductive organs called flowers, where the ovulary or carpel is enclosed. ... A clade is group of organisms which share a common ancestor and which includes all decendents of that ancestor. ... In phylogenetics, a group is monophyletic (Greek: of one stem) if all organisms in that group are known to have developed from a common ancestral form, and all descendants of that form are included in the group. ... Young castor oil plant showing its prominent two embryonic leaves (cotyledons), that differ from the adult leaves Dicotyledons or dicots is a name for a group of flowering plants whose seed typically contains two embryonic leaves or cotyledons. ... Orders Amborellales Nymphaeales Austrobaileyales Chloranthales Magnoliids Magnoliales Laurales Piperales (incl. ... Paraphyletic - Wikipedia /**/ @import /skins-1. ...

The name "eudicots" is formed by adding the botanical prefix "eu−" (= "true") to "dicots". The eudicots have those characters that many older textbooks associate with dicots. Since "dicots" is short for "dicotyledons" it is tempting to jump to the conclusion that "eudicots" is short for "eudicotyledons". However, the name is "eudicots".

The name tricolpates refers to the structure of the pollen. The group has tricolpate pollen, or forms derived from it. These pollen have three or more pores set in furrows called colpi. In contrast, most of the other seed plants (that is the gymnosperms, the monocots and the palaeodicots) produce monosulcate pollen, with a single pore set in a differently oriented groove called the sulcus. The name "tricolpates" is preferred under the PhyloCode. SEM image of pollen grains from a variety of common plants: sunflower (Helianthus annuus), morning glory (Ipomea purpurea), hollyhock (Sildalcea malviflora), lily (Lilium auratum), primrose (Oenothera fruticosa), and castor bean (Ricinus communis). ... A pore, in general, is some form of opening, usually very small. ... Gymnosperms are seed-bearing, vascular plants. ... Orders Base Monocots: Acorus Alismatales Asparagales Dioscoreales Liliales Pandanales Family Petrosaviaceae Commelinids: Arecales Commelinales Poales Zingiberales Family Dasypogonaceae Monocotyledons or monocots are a group of flowering plants usually ranked as a class and once called the Monocotyledoneae. ... Types of clade PhyloCode is a draft for a formal set of rules governing phylogenetic nomenclature. ...

Subdivision

Within the "eudicots" or "tricolpates" the main groups are the "rosids" (core group with the prefix "eu−") and the "asterids" (core group with the prefix "eu−").

• eudicots :

  core eudicots :

  rosids :

  eurosids I

  eurosids II

  asterids :

  euasterids I

  euasterids II

In more detail, with in each clade some unplaced families and orders (unplaced genera are not mentioned): In the APG II system (2003) for the classification of flowering plants, the name asterids refers to a clade (a monophyletic group). ...

• clade eudicots

  family Buxaceae (+ family Didymelaceae)

  family Sabiaceae

  family Trochodendraceae (+ family Tetracentraceae)

  order Ranunculales

  order Proteales

  clade core eudicots

  family Aextoxicaceae

  family Berberidopsidaceae

  family Dilleniaceae

  order Gunnerales

  order Caryophyllales

  order Saxifragales

  order Santalales

  clade rosids

  family Aphloiaceae

  family Geissolomataceae

  family Ixerbaceae

  family Picramniaceae

  family Strassburgeriaceae

  family Vitaceae

  order Crossosomatales

  order Geraniales

  order Myrtales

  clade eurosids I

  family Zygophyllaceae (+ family Krameriaceae)

  family Huaceae

  order Celastrales

  order Malpighiales

  order Oxalidales

  order Fabales

  order Rosales

  order Cucurbitales

  order Fagales

  clade eurosids II

  family Tapisciaceae

  order Brassicales

  order Malvales

  order Sapindales

  clade asterids

  order Cornales

  order Ericales

  clade euasterids I

  family Boraginaceae

  family Icacinaceae

  family Oncothecaceae

  family Vahliaceae

  order Garryales

  order Solanales

  order Gentianales

  order Lamiales

  clade euasterids II

  family Bruniaceae

  family Columelliaceae (+ family Desfontainiaceae)

  family Eremosynaceae

  family Escalloniaceae

  family Paracryphiaceae

  family Polyosmaceae

  family Sphenostemonacae

  family Tribelaceae

  order Aquifoliales

  order Apiales

  order Dipsacales

  order Asterales

Note : “ + ....” = optional, as a seggregate of the previous family This article is about the box tree. ... Species Didymeles integrifolia Didymeles perrieri Didymeles is a genus of flowering plants and the only genus of the family Didymelaceae. ... Sabiaceae is a family of plants native to East Asia and Melanesia. ... Binomial name Trochodendron aralioides Siebold & Zucc. ... Binomial name Tetracentron sinense Oliv. ... Families See text The Ranunculales are an order of flowering plants, which belong among the basal eudicots. ... Families See text The Proteales are an order of flowering plants, which belong among the basal eudicots. ... species Aextoxicon punctatum is a tree native to southern Chile, commonly known as the Olivillo or Aceitunillo. ... Dilleniaceae is a plant family found in the tropics, sub-tropics and most of Australia. ... Families Gunneraceae Myrothamnaceae Gunnerales is an order of dicotyledons comprising two genera in separate families, Gunnera (Gunneraceae) and Myrothamnus (Myrothamnaceae). ... Families Achatocarpaceae Aizoaceae (Fig-marigold family) Amaranthaceae (amaranth family) Ancistrocladaceae Asteropeiaceae Barbeuiaceae Basellaceae (basella family) Cactaceae (cactus family) Caryophyllaceae (carnation family) Dioncophyllaceae Droseraceae (sundew family) Drosophyllaceae Frankeniaceae Molluginaceae (carpetweed family) Nepenthaceae Nyctaginaceae (four-oclock family) Physenaceae Phytolaccaceae (pokeweed family) Plumbaginaceae (plumbago family) Polygonaceae (buckwheat family) Portulacaceae (purslane family) Rhabdodendraceae... Families See text The Saxifragales are an order of dicotyledons, typically including the following families: Family Saxifragaceae (saxifrage family) Family Grossulariaceae (gooseberry family) Family Iteaceae Family Pterostemonaceae Family Haloragidaceae Family Gunneraceae (gunnera family) Family Penthoraceae Family Tetracarpaeaceae Family Aphanopetalaceae Family Crassulaceae (orpine family) Family Altingiaceae (sweet gum family) Family Paeoniaceae... Families See text The Santalales are an order of flowering plants, belonging to the dicotyledons. ... Genera Acareosperma Ampelocissus Ampelopsis (peppervine) Cayratia Cissus (treebind, treebine) Clematicissus Cyphostemma Nothocissus Parthenocissus (creeper) Pterisanthes Pterocissus Rhoicissus Tetrastigma Vitis (grape) Vua The Vitaceae (or Vitidaceae) are a family of dicots including the grape and Virginia creeper. ... Families Crossosomataceae Stachyuraceae Staphyleaceae The Crossosomatales are an order of flowering plants, included within the rosid subgroup of dicotyledons. ... Families (APG II) Geraniaceae (geranium family) Melianthaceae Vivianiaceae Ledocarpaceae The Geraniales are an small order of flowering plants, included within the rosid subgroup of dicotyledons. ... Families See text The Myrtales are an order of flowering plants placed within the rosid group of dicotyledons. ... Family: Zygophyllaceae Genera: Augea Bulnesia Fagonia Guaiacum Halimiphyllum Izozogia Kallstroemia Kelleronia Larrea Metharme Miltianthus Morkillia Neoluederitzia Peganum Pintoa Plectrocarpa Porlieria Roepera Sarcozygium Seetzenia Sericodes Sisyndite Tetradiclis Tetraena Tribulopis Tribulus Viscainoa Zygophyllum The Zygophyllaceae are a family of about 250 species of dicotyledonous plants also known as the bean-caper family... Families Celastraceae(staff vinefamily) Parnassiaceae Lepidobotryaceae The Celastrales are an order of flowering plants, included within the rosid subgroup of dicotyledons. ... Families Family Achariaceae Family Balanopaceae Family Bonnetiaceae Family Caryocaraceae Family Chrysobalanaceae Family Clusiaceae Family Ctenolophonaceae Family Dichapetalaceae Family Elatinaceae Family Erythryloxaceae (coca family) Family Euphorbiaceae (spurge family) Family Euphroniaceae Family Goupiaceae Family Humiriaceae Family Hypericaceae (St Johns wort family) Family Irvingiaceae Family Ixonanthaceae Family Lacistemaceae Family Linaceae (flax family... Families Fabaceae (legumes) Quillajaceae Polygalaceae (milkwort family) Surianaceae The Fabales are an order of flowering plants, included in the rosid group of dicotyledons. ... Families Barbeyaceae Cannabaceae (hemp family) Dirachmaceae Elaeagnaceae Moraceae (mulberry family) Rosaceae (rose family) Rhamnaceae (buckthorn family) Ulmaceae (elm family) Urticaceae (nettle family) For the Philippine municipality, see Rosales, Pangasinan. ... Families Cucurbitaceae (gourd family) Begoniaceae (begonia family) Datiscaceae Tetramelaceae Corynocarpaceae Coriariaceae Anisophylleaceae The Cucurbitales are an order of flowering plants, included in the rosid group of dicotyledons. ... Families included in the Kew list: Fagaceae - Beech family   (including Nothofagaceae) Betulaceae - Birch family Corylaceae - Hazel family Ticodendraceae not included in the Kew list: Casuarinaceae - She-oak family Juglandaceae - Walnut family Rhoipteleaceae Myricaceae The Fagales are an order of flowering plants, including some of the best known trees. ... Families See text The Brassicales are an order of flowering plants, belonging to the rosid group of dicotyledons. ... Families Malvaceae (mallows,...) Dipterocarpaceae Sarcolaenaceae Cistaceae Muntingiaceae Bixaceae Diegodendraceae Cochlospermaceae Sphaerosepalaceae Thymelaeaceae Neuradaceae The Malvales are an order of flowering plants, mostly comprised of shrubs and trees. ... Families See text The Sapindales is an order of flowering plants included among the rosid subgroup of dicotyledons. ... In the APG II system (2003) for the classification of flowering plants, the name asterids refers to a clade (a monophyletic group). ... Families See text The Cornales are an order of flowering plants, basal among the asterid group of dicotyledons. ... Families See text The Ericales are a large and diverse order of dicotyledons. ... Genera many, see text Boraginaceae Juss. ... Families Garryaceae Eucommiaceae The Garryales are a small order of dicotyledons, including only two families and three genera: Family Garryaceae Garrya Aucuba Family Eucommiaceae Eucommia These belong among the asterids. ... Families at least the following: Solanaceae Convolvulaceae and others, varying between classification systems; for details see text The Solanales are an order of flowering plants, included in the asterid group of dicotyledons. ... Families Gentianaceae (gentian family) Apocynaceae (dogbane family) Gelsemiaceae Loganiaceae (logania family) Rubiaceae (coffee family) The Gentianales are an order of flowering plants, included within the asterid group of dicotyledons. ... Families See text The Order Lamiales is a taxon in the asterid group of dicotyledonous flowering plants. ... Families Aquifoliaceae Helwingiaceae Phyllonomaceae The Aquifoliales are an order of flowering plants, including most notably the Aquifoliaceae, or holly family. ... Families Apiaceae (carrot family) Araliaceae (ginseng family) Pittosporaceae Griseliniaceae Torriceliaceae The Apiales are an order of flowering plants. ... Families may not be a complete list Adoxaceae (moschatel family) Caprifoliaceae (honeysuckle family) Diervillaceae Dipsacaceae (teasel family) Linnaeaceae (twinflower family) Morinaceae Valerianaceae (valerian family) The Dipsacales are an order of flowering plants, included within the asterid group of dicotyledons. ... Families See text The Asterales are an order of dicotyledonous flowering plants which include the composite family Asteraceae (sunflowers and daisies) and its related families. ...