Asterids

Asterids
Impatiens capensis from Ericales
Scientific classification
Kingdom:Plantae
Clade:Angiosperms
Clade:Eudicots
Clade:Superasterids
Clade:Asterids
Clades
Oregano from Lamiales

In the APG IV system (2016) for the classification of flowering plants, the name asterids denotes a clade (a monophyletic group).[1] Common examples include the forget-me-nots, nightshades (including potatoes, eggplants, tomatoes, peppers and tobacco), the common sunflower, petunias, morning glory and sweet potato, coffee, lavender, lilac, olive, jasmine, honeysuckle, ash tree, teak, snapdragon, sesame, psyllium, garden sage, and table herbs such as mint, basil, and rosemary.

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. The name asterids (not necessarily capitalised) resembles the earlier botanical name but is intended to be the name of a clade rather than a formal ranked name, in the sense of the ICBN.

Phylogeny

The phylogenetic tree presented hereafter has been proposed by the APG IV project.[1]

asterids 

 

 Cornales

 
 

 

 Ericales

 
euasterids

campanulids

 

Aquifoliales

 
 

 

Asterales

 
 

Escalloniales

 
 

 

Bruniales

 
 

 

Apiales

 
 

 

Dipsacales

 
 

Paracryphiales

 
 
 
 
 
 
lamiids

 

Icacinales

 
 

 

Metteniusales

 
 

 

Garryales

 
 

 

Boraginales

 
 

Gentianales

 
 

Vahliales

 
 

Lamiales

 
 

Solanales

 
 
 
 
 
 
 
 

History

Genetic analysis carried out after APG II maintains that the sister to all other asterids are the Cornales. A second order that split from the base of the asterids are the Ericales. The remaining orders cluster into two clades, the lamiids and the campanulids. The structure of both of these clades has changed in APG III.[2][3]

In APG III system, the following clades were renamed:

euasterids I → lamiids
euasterids II → campanulids[2][3]

References

  1. 1 2 Angiosperm Phylogeny Group (2016). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG IV". Botanical Journal of the Linnean Society. 181 (1): 1–20. doi:10.1111/boj.12385.
  2. 1 2 Angiosperm Phylogeny Group (2003). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG II". Botanical Journal of the Linnean Society. 141 (4): 399–436. doi:10.1046/j.1095-8339.2003.t01-1-00158.x.
  3. 1 2 Angiosperm Phylogeny Group (2009). "An update of the Angiosperm Phylogeny Group classification for the orders and families of flowering plants: APG III". Botanical Journal of the Linnean Society. 161 (2): 105–121. doi:10.1111/j.1095-8339.2009.00996.x.
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