View source for Rosids

{{Taxobox
| image = Euphorbia heterophylla (Painted Euphorbia) in Hyderabad, AP W IMG 9720.jpg
| image_caption = ''[[Euphorbia heterophylla]]'' 
| image_width = 240px
|regnum = [[Plantae]]
|unranked_divisio = [[Flowering plant|Angiosperms]]
|unranked_classis = [[Eudicots]]
|unranked_ordo = '''Rosids'''
|subdivision_ranks = [[Order (biology)|Orders]]}}

The '''rosids''' are a large [[clade]] of [[flowering plant]]s. It includes about 70,000 species,<ref>{{cite journal|doi=10.1073/pnas.0813376106|title=Rosid radiation and the rapid rise of angiosperm-dominated forests|year=2009|last1=Wang|first1=H.|last2=Moore|first2=M. J.|last3=Soltis|first3=P. S.|last4=Bell|first4=C. D.|last5=Brockington|first5=S. F.|last6=Alexandre|first6=R.|last7=Davis|first7=C. C.|last8=Latvis|first8=M.|last9=Manchester|first9=S. R.|last10=Soltis|first10=D. E.|journal=Proceedings of the National Academy of Sciences|volume=106|issue=10|pages=3853–3858|pmid=19223592|pmc=2644257|doi-access=free}}</ref> more than a quarter of all [[angiosperm]]s.<ref>{{Cite journal|jstor=3647306|title=How many species of seed plants are there?| last1=Scotland|first1=Robert W.| last2=Wortley| first2=Alexandra H.| journal=Taxon|year=2003| volume=52|issue=1|pages=101–104|doi=10.2307/3647306}}</ref> 

The rosids are divided into 17  [[order (biology)|orders]]. These orders together make up about 140 [[family (biology)|families]]. The rosids and the [[asterids]] are by far the largest clades in the [[eudicots]].

Rosids are very basic flowering plants. Fossil rosids are known from the [[Cretaceous|Cretaceous period]]. Molecular clock estimates indicate that the rosids originated in the Aptian or Albian stages of the [[Cretaceous]], between 125 and 99.6 million years ago (mya).<ref>{{Cite journal |last1=Folk |first1=Ryan A. |last2=Sun |first2=Miao |last3=Soltis |first3=Pamela S. |last4=Smith |first4=Stephen A. |last5=Soltis |first5=Douglas E. |last6=Guralnick |first6=Robert P. |date=2018 |title=Challenges of comprehensive taxon sampling in comparative biology: Wrestling with rosids |url=https://doi.org/10.1002/ajb2.1059 |journal=American Journal of Botany |volume=105 |issue=3 |pages=433–445 |doi=10.1002/ajb2.1059 |pmid=29665035 |issn=0002-9122}}</ref>

Three different definitions of the rosids are in use. Some authors include the order [[Saxifragales]] in the rosids. Others exclude it.

== References ==
{{reflist}}


[[category:Rosids| ]]