In the APG II system (2003) for the classification of flowering plants, the name asterids refers to a clade (a monophyletic group). The flowering plants or angiosperms ( Angiospermae or Magnoliophyta) are the most widespread group A clade is a taxonomic group comprising a single Common ancestor and all the descendants of that ancestor A clade is a taxonomic group comprising a single Common ancestor and all the descendants of that ancestor

Most of the taxa belonging to this clade had been referred to the Asteridae in the Cronquist system (1981) and to the Sympetalae in earlier systems. Asteridae is a Botanical name at the rank of subclass. Circumscription of the subclass has varied with the taxonomic system being A system of plant taxonomy, the Cronquist system is a scheme for the classification of flowering plants (or Angiosperms) Sympetalae, meaning “with fused petals” is a descriptive botanical name, used in the Engler system (and derived systems such as the Wettstein The name asterids (plural, not necessarily capitalized) is presumably inspired by the earlier 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. A botanical name is a formal scientific name conforming to the International Code of Botanical Nomenclature (ICBN and if the plant is a Cultigen, the The International Code of Botanical Nomenclature ( ICBN) is the set of rules and recommendations dealing with the formal Botanical names that are given to This clade is one of the two main groups of eudicots, the other being the rosids. Eudicots and Eudicotyledons are terms introduced by Doyle & Hotton (1991 to refer to a group of Flowering plants that had been called "tricolpates" or "non-Magnoliid In the APG II system for the classification of the Angiosperms the name rosids refers to a Clade, meaning a Monophyletic group of plants It consists of:

• 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 Tribelaceae)

  family Paracryphiaceae (+ families Sphenostemonaceae and Quintiniaceae)

  family Polyosmaceae

  order Aquifoliales

  order Apiales

  order Dipsacales

  order Asterales

Note : “ + . Cornales is an order of Flowering plants basal among the Asterids, which are part of the core Eudicots. The Ericales are a large and diverse order of Dicotyledons including for example Tea, Persimmon, Blueberry, Brazil nut, and Boraginaceae Juss 1789 the Borage or Forget-me-not family includes a variety of Shrubs Trees and Herbs totaling about 2000 species Icacinaceae is a family of dicotyledonous plants that include trees and vines The Garryales are a small order of Dicotyledons including only two families and three genera Family Garryaceae The Solanales are an order of Flowering plants included in the asterid group of Dicotyledons Some older sources used the name Polemoniales Gentianales are an order of Flowering plants included within the Asterid group of Dicotyledons The circumscription of Gentiales in the Cronquist The order Lamiales is a Taxon in the asterid group of dicotyledonous Flowering plants. The Escalloniaceae is a family of Flowering plants so far unplaced as to order but belonging to the campanulid clade (euasterids II and comprising about 150 species The Escalloniaceae is a family of Flowering plants so far unplaced as to order but belonging to the campanulid clade (euasterids II and comprising about 150 species Sphenostemon is the only genus in the Monotypic family of plants Sphenostemonaceae of small Evergreen trees or shrubs endemic The Aquifoliales are an order of Flowering plants including most notably the Aquifoliaceae, or Holly family and also the Helwingiaceae The Dipsacales are an order of Flowering plants included within the Asterid group of Dicotyledons Under the Cronquist system The Asterales are an order of Dicotyledonous Flowering plants which include the composite family Asteraceae ( Sunflowers daisies . . . ” = optional as a seggregate of the preceding family.

External links

• Asterids in Stevens, P. F. (2001 onwards). Angiosperm Phylogeny Website. Version 7, May 2006.

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