In the APG II system for the classification of the angiosperms the name rosids refers to a clade, meaning a monophyletic group of plants. This clade is one of the two main groups in the eudicots, the other being the asterids. 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. ... In the APG-system, the names eudicots or tricolpates are applied to a monophyletic group that includes most of the (former) dicotyledons. ... In the APG II system (2003) for the classification of flowering plants, the name asterids refers to a clade (a monophyletic group). ...

The clade includes, roughly speaking, those species that in the Cronquist system were referred to the Hamamelididae and Rosidae and quite a few from the Dilleniidae. The name "rosids" (plural, not necessarily capitalized) is presumably inspired by the botanical name, but in itself is intended to be the name of a clade rather than a formal ranked name, in the sense of the ICBN. The Cronquist system is a scheme for the classification of flowering plants (or angiosperms). ... Orders See text The botanical Sub-class Rosidae is a large dicotyledonous flowering plant taxon, containing over 58,000 species grouped within 108 families. ... Dilleniidae is a botanical name at the rank of subclass. ... A botanical name is a formal name conforming to the ICBN. As with its zoological and bacterial equivalents it may also be called a scientific name. Botanical names may be in one part (genus and above), two parts (species) or three parts (below the rank of species). ... A clade is group of organisms which share a common ancestor and which includes all decendents of that ancestor. ... The International Code of Botanical Nomenclature is the set of rules according to which plants are given their formal botanical names (scientific names). ...

It comprises (starting with basal groups):

• 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

Note : “ + ....” = optional, as a seggregate of the preceding 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. ...