Oxalidales is an
order
Order, ORDER or Orders may refer to:
* Categorization, the process in which ideas and objects are recognized, differentiated, and understood
* Heterarchy, a system of organization wherein the elements have the potential to be ranked a number of d ...
of
flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, vessel') and ('seed'), and refers to those plants th ...
s, included within the
rosid subgroup of
eudicots
The eudicots, Eudicotidae, or eudicotyledons are a clade of flowering plants mainly characterized by having two seed leaves upon germination. The term derives from Dicotyledons.
Traditionally they were called tricolpates or non-magnoliid dico ...
. Compound leaves are common in Oxalidales and the majority of the
species
In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...
in this order have five or six sepals and petals. The following families are typically placed here:
[Stephens, P.F. (2001 onwards). Angiosperm Phylogeny Website. Version 9, June 2008. http://www.mobot.org/MOBOT/Research/APweb/]
* Family
Brunellia
''Brunellia'' is a genus of trees. They are distributed in the mountainous regions of southern Mexico, Central America, West Indies, and South America
South America is a continent entirely in the Western Hemisphere and mostly in the S ...
ceae
* Family
Cephalotaceae
''Cephalotus'' ( or ; Greek: ''κεφαλή'' "head", and ''οὔς''/''ὠτός'' "ear", to describe the head of the anthers) is a genus which contains one species, ''Cephalotus follicularis'' the Albany pitcher plant, a small carnivorous pit ...
(''Cephalotus follicularis'')
* Family
Connaraceae
Connaraceae is a pan-tropical plant family of 19 genera and more than 180 species of largely evergreen trees, woody shrubs and climbers.
The family was first described by Robert Brown in 1816 and the name has been conserved.
Distribution
Connar ...
* Family
Cunoniaceae
* Family
Elaeocarpaceae
* Family
Huaceae
* Family
Oxalidaceae
The Oxalidaceae, or wood sorrel family, are a small family of five genera of herbaceous plants, shrubs and small trees, with the great majority of the 570 species in the genus ''Oxalis'' (wood sorrels). Members of this family typically have divid ...
(
wood sorrel family)
The family Cephalotaceae contains a single species, a
pitcher plant
Pitcher plants are several different carnivorous plants which have modified leaves known as pitfall traps—a prey-trapping mechanism featuring a deep cavity filled with digestive liquid. The traps of what are considered to be "true" pitcher p ...
found in
Southwest Australia
Southwest Australia is a biogeographic region in Western Australia. It includes the Mediterranean-climate area of southwestern Australia, which is home to a diverse and distinctive flora and fauna.
The region is also known as the Southwest Aus ...
.
Under the
Cronquist system, most of the above families were placed in the
Rosales. The Oxalidaceae were placed in the
Geraniales, and the Elaeocarpaceae split between the
Malvales and
Polygalales, in the latter case being treated as the
Tremandraceae.
Phylogeny
The
phylogeny
A phylogenetic tree (also phylogeny or evolutionary tree Felsenstein J. (2004). ''Inferring Phylogenies'' Sinauer Associates: Sunderland, MA.) is a branching diagram or a tree showing the evolutionary relationships among various biological spec ...
of the Oxalidales shown below is adapted from the
Angiosperm Phylogeny Group website.
References
External links
Angiosperm orders
{{Oxalidales-stub