{{Taxobox
| color = lightgreen
| name = Arecales
| image = Beetle palm with nut bunch.jpg
| image_width = 240px
| image_caption = ''[[Areca catechu]]''
| regnum = [[Plant]]ae
| divisio = [[Flowering plant|Magnoliophyta]]
| classis = [[Liliopsida]]
| ordo = '''Arecales'''
| ordo_authority = [[Edward Ffrench Bromhead|Bromhead]]
| subdivision_ranks = Families
| subdivision =
[[Arecaceae]]
}}

'''Arecales''' is an [[order (biology)|order]] of [[flowering plant]]s. The order has been widely recognised only for the past few decades; until then, the accepted name for the order including these plants was [[Principes (botany)|Principes]].

The [[APG II system]] of 2003 recognises the order and places it in the clade [[commelinids]] in the [[monocots]] and uses this circumscription:

* order Arecales
*: family [[Arecaceae]], alternative name [[Palmae]]

This is unchanged from the [[APG system]] of [[1998]], although it used the spelling "commelinoids" instead of commelinids.

The [[Cronquist system]] of [[1981]] made the same choices at the rank of family and order, but assigned the order to the subclass [[Arecidae]] in the class [[Liliopsida]] (= [[monocotyledons]]).

The [[Thorne system (1992)]] and the [[Dahlgren system]] had made the same choices at the rank of family and order, but assigned the order to the superorder [[Arecanae]] in the subclass [[Liliidae]] (= monocotyledons).

==External links==
{{commonscat|Arecales}}
* [http://www.ncbi.nlm.nih.gov/Taxonomy/Browser/wwwtax.cgi?mode=Tree&id=40551&lvl=3&lin=f&keep=1&srchmode=1&unlock NCBI Taxonomy Browser]

[[Category:Palms| ]]

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[[vi:Bộ Cau]]