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Eudicotyledons
Scientific classification
Domain: Eukaryota
Kingdom: Plantae
Division: Magnoliophyta
Class:Rosopsida
Orders
  • Basal eudicots
  • Basal rosids
    • CrossosomatalesCrossosomataceae Stachyuraceae Staphyleaceae The Crossosomatales are an order of flowering plants, included within the rosid subgroup of dicotyledons. The following three families are placed here: Family Crossosomataceae Family Stachyuraceae Family Staphy
    • GeranialesGeraniaceae ( geranium family) Melianthaceae Vivianiaceae Ledocarpaceae The Geraniales are an small order of flowering plants, included within the rosid subgroup of dicotyledons. The largest family in the order is the Geraniaceae with over 800 species.
    • MyrtalesSee text The Myrtales are an order of flowering plants placed within the rosid group of dicotyledons. The following families are typical of newer classifications: Family Alzateaceae Family Combretaceae Family Crypteroniaceae Family Heteropyxidaceae Family
  • Eurosids I
    • ZygophyllalesZygophyllaceae Krameriaceae The Zygophyllales are an order of dicotyledon plants, comprising the following two families: Family Zygophyllaceae Family Krameriaceae Under the older Cronquist system, the Zygophyllaceae were included within the Sapindales, an
    • CelastralesCelastraceae ( staff vine family) Parnassiaceae Lepidobotryaceae The Celastrales are an order of flowering plants, included within the rosid subgroup of dicotyledons. Newer classifications include the following three families: Family Celastraceae ( staff
    • MalpighialesSee text The Malpighiales are a large order of flowering plants, included in the rosid group of dicotyledons. Under the older Cronquist system, the families now included in the Malpighiales were dispersed throughout a number of different orders, not all o
    • OxalidalesSee text The Oxalidales are an order of flowering plants, included within the rosid subgroup of dicotyledons. The following families are typically placed here: Family Oxalidaceae ( wood sorrel family) Family Connaraceae Family Elaeocarpaceae Family Cunoni
    • FabalesFabaceae (legumes) Quillajaceae Polygalaceae ( milkwort family) Surianaceae The Fabales are an order of flowering plants, included in the rosid group of dicotyledons. The families given at right are typical of newer classifications. Under the older Cronqu
    • Rosales
    • Cucurbitales
    • Fagales
  • Eurosids II
  • Basal asterids
  • Euasterids I
  • Euasterids II

The eudicotyledons or tricolpates are a monophyletic group including all but a few basal dicotyledons. The name tricolpates is preferred under the PhyloCode system. Some authors treat them as a single separate class, the Rosopsida, while others further divide them into several classes. However, this still leaves the remaining dicots ( palaeodicotyledons) as a paraphyletic group.

The eudicotyledons are set apart most notably by the production of tricolpate pollen, or forms derived from it. These pollen have three or more pores set in furrows called colpi. In contrast, most other flowering plants and gymnosperms produce monosulcate pollen, with a single pore set in a differently oriented groove called the sulcus.

Plants

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