In the
APG IV system (2016) for the classification of
flowering plants, the name asterids denotes a
clade (a
monophyletic group). Asterids is the largest group of
flowering plants, with more than 80,000 species, about a third of the total flowering plant species.
Well-known plants in this clade include the
common daisy
''Bellis perennis'' (), the daisy, is a European species of the family Asteraceae, often considered the archetypal species of the name daisy. To distinguish this species from other plants known as daisies, it is sometimes qualified as common dai ...
,
forget-me-not
''Myosotis'' ( ) is a genus of flowering plants in the family Boraginaceae. The name comes from the Ancient Greek "mouse's ear", which the foliage is thought to resemble. In the northern hemisphere they are colloquially known as forget-me-nots ...
s,
nightshades (including
potatoes,
eggplant
Eggplant ( US, Canada), aubergine ( UK, Ireland) or brinjal (Indian subcontinent, Singapore, Malaysia, South Africa) is a plant species in the nightshade family Solanaceae. ''Solanum melongena'' is grown worldwide for its edible fruit.
Mo ...
s,
tomatoes,
chili peppers
Chili peppers (also chile, chile pepper, chilli pepper, or chilli), from Nahuatl '' chīlli'' (), are varieties of the berry-fruit of plants from the genus ''Capsicum'', which are members of the nightshade family Solanaceae, cultivated for t ...
and
tobacco
Tobacco is the common name of several plants in the genus ''Nicotiana'' of the family Solanaceae, and the general term for any product prepared from the cured leaves of these plants. More than 70 species of tobacco are known, but the chie ...
), the
common sunflower
The common sunflower (''Helianthus annuus'') is a large annual forb of the genus ''Helianthus'' grown as a crop for its edible oily seeds. Apart from cooking oil production, it is also used as livestock forage (as a meal or a silage plant), as b ...
,
petunias
''Petunia'' is genus of 20 species of flowering plants of South American origin. The popular flower of the same name derived its epithet from the French, which took the word ''petun'', meaning "tobacco," from a Tupi–Guarani language. A tend ...
,
yacon,
morning glory,
sweet potato,
coffee,
lavender,
lilac
''Syringa'' is a genus of 12 currently recognized species of flowering woody plants in the olive family or Oleaceae called lilacs. These lilacs are native to woodland and scrub from southeastern Europe to eastern Asia, and widely and commonl ...
,
olive,
jasmine
Jasmine ( taxonomic name: ''Jasminum''; , ) is a genus of shrubs and vines in the olive family (Oleaceae). It contains around 200 species native to tropical and warm temperate regions of Eurasia, Africa, and Oceania. Jasmines are widely cultiv ...
,
honeysuckle
Honeysuckles are arching shrubs or twining vines in the genus ''Lonicera'' () of the family Caprifoliaceae, native to northern latitudes in North America and Eurasia. Approximately 180 species of honeysuckle have been identified in both con ...
,
ash tree
''Fraxinus'' (), commonly called ash, is a genus of flowering plants in the olive and lilac family, Oleaceae. It contains 45–65 species of usually medium to large trees, mostly deciduous, though a number of subtropical species are evergree ...
,
teak
Teak (''Tectona grandis'') is a tropical hardwood tree species in the family Lamiaceae. It is a large, deciduous tree that occurs in mixed hardwood forests. ''Tectona grandis'' has small, fragrant white flowers arranged in dense clusters (panicl ...
,
snapdragon
''Antirrhinum'' is a genus of plants commonly known as dragon flowers, snapdragons and dog flower because of the flowers' fancied resemblance to the face of a dragon that opens and closes its mouth when laterally squeezed. They are native to r ...
,
sesame
Sesame ( or ; ''Sesamum indicum'') is a flowering plant in the genus ''Sesamum'', also called benne. Numerous wild relatives occur in Africa and a smaller number in India. It is widely naturalized in tropical regions around the world and is c ...
,
psyllium
Psyllium , or ispaghula , is the common name used for several members of the plant genus ''Plantago'' whose seeds are used commercially for the production of mucilage. Psyllium is mainly used as a dietary fiber to relieve symptoms of both constip ...
,
garden sage, table herbs such as
mint,
basil
Basil (, ; ''Ocimum basilicum'' , also called great basil, is a culinary herb of the family Lamiaceae (mints). It is a tender plant, and is used in cuisines worldwide. In Western cuisine, the generic term "basil" refers to the variety also kn ...
, and
rosemary
''Salvia rosmarinus'' (), commonly known as rosemary, is a shrub with fragrant, evergreen, needle-like leaves and white, pink, purple, or blue flowers, native plant, native to the Mediterranean Region, Mediterranean region. Until 2017, it was kn ...
, and rainforest trees such as
Brazil nut.
Most of the taxa belonging to this clade had been referred to as
Asteridae
''Asteridae'' is an obsolete botanical name at the rank of Subclass (biology), subclass. Composition of the subclass has also varied; however, by definition it always includes the family Asteraceae (Compositae). In the modern APG IV system of clas ...
in the
Cronquist system
The Cronquist system is a taxonomic classification system of flowering plants. It was developed by Arthur Cronquist in a series of monographs and texts, including ''The Evolution and Classification of Flowering Plants'' (1968; 2nd edition, 1988) ...
(1981) and as
Sympetalae
Sympetaly (fused petals) is a flower characteristic that historically was used to classify a grouping of plants termed Sympetalae, but this term has been abandoned in newer molecular based classifications, although the grouping has similarity to ...
in earlier systems. The name asterids (not necessarily capitalised) resembles the earlier
botanical name
A botanical name is a formal scientific name conforming to the ''International Code of Nomenclature for algae, fungi, and plants'' (ICN) and, if it concerns a plant cultigen, the additional cultivar or Group epithets must conform to the ''Interna ...
but is intended to be the name of a clade rather than a formal ranked name, in the sense of the ''
ICBN''.
History
Genetic analysis carried out after
APG II
The APG II system (Angiosperm Phylogeny Group II system) of plant classification is the second, now obsolete, version of a modern, mostly molecular-based, system of plant taxonomy that was published in April 2003 by the Angiosperm Phylogeny Gro ...
maintains that the sister to all other asterids are the
Cornales
The Cornales are an order of flowering plants, early diverging among the asterids, containing about 600 species. Plants within the Cornales usually have four-parted flowers, drupaceous fruits, and inferior to half-inferior gynoecia topped with d ...
. 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 APG is an abbreviation with several different meanings:
* Aberdeen Proving Ground, a United States Army installation in Aberdeen, Maryland, also
** Phillips Army Airfield, the airfield of the above, from its IATA airport code
* Aboriginal Provision ...
.
In the APG III system, the following clades were renamed:
: euasterids I → lamiids
: euasterids II → campanulids
Phylogeny
The phylogenetic tree presented hereinafter has been proposed by the APG IV project.
Subdivision
;lamiids
The lamiid subclade consists of about 40,000 species and account for about 15% of angiosperm diversity, characterized in general by superior
ovaries and
corollas with any fusion of the petals () occurring late in the process of development. The major part of lamiid diversity occurs in the group of five orders from Boraginales to Solanales, referred to informally as "core lamiids" (sometimes called Laminae), although Vahliales consists of the single small genus
Vahlia
:''The later homonym Vahlia Dahl is now known as Dombeya.''
''Vahlia'' is a genus of herbs and subshrubs that grow in Africa and the Indian subcontinent. There are at least five species.
The genus is placed alone in family ''Vahliaceae''. This ...
. The remainder of the lamiids are referred to as "basal lamiids", in which
Garryales is the
sister group to the core lamiids. It has been suggested that the core lamiids radiated from an ancestral line of tropical trees in which the flowers were inconspicuous and the fruit large,
drupaceous
In botany, a drupe (or stone fruit) is an indehiscent fruit in which an outer fleshy part ( exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pit'', ''stone'', or ''pyrena'') of hardened endocarp with a seed (''kernel'') ...
and often single-seeded.
References
Bibliography
*
External links
*
Asteridsin Stevens, P. F. (2001 onwards)
Angiosperm Phylogeny Website Version 7, May 2006.
{{Taxonbar, from=Q747502
Plant unranked clades