With more than 1,620 genera and 23,600 species of herbs, shrubs, and trees distributed throughout the world, asteraceae is one of the largest plant families. The sunflower family asteraceae is one of the largest families of flowering plants, consisting of approximately 1,100 genera and 25,000 species jeffrey, 1978. Most species are herbs, but some are shrubs and a few are trees. Pdf taxonomic studies on the family asteraceae compositae of.
The asteraceae compositae, alternate name with its approximately 1,620 genera and more than 23,600 species is the largest family of flowering plants stevens, 2001. The aster family asteraceae is one of the largest angiosperm families, with more than 1,620 genera and 23,600 species of herbaceous plants, shrubs, and trees distributed throughout the world. Habitplants terrestrial, often vinelike, mostly herbaceous, perennating by pseudobulbs. The success and wide distribution of the asteraceae family in the most diverse habitats have been attributed to the diversity of secretory structures.
Leaf morphology and anatomy of asteraceae of the pampas. Pdf the asteraceae is one of the largest families of flowering plants. Asteraceae plants with heads composed of many florets. Leaves are alternate with toothed edges, seen in groups of. Contents introduction habitat habit vegetative characters floral characters division of family medicinal importance. The family is distributed worldwide except for antarctica but is especially diverse in the tropical and subtropical regions of north america, the andes, eastern brazil, southern. The description of the leaf morphology of the species consisted of phylotaxis, leaf type. As regards the world diversity of the family, only about 12% of genera have. Embed for hosted blogs and item description tags want more. They are world wide in distribution and abundant in tropics and in cold arctic or alpines regions.
A brief taxonomic description of each species is given with local name and valid name. Taxonomic discussion on the asteraceae is included under the relevant tribes. Stems are branched with one flowerhead at each tip. Asteraceae definition of asteraceae by the free dictionary. Asteraceae 2 taxonomic discussion on the asteraceae is included under the relevant tribes. It is the largest family of dicotyledons, comprising 950 genera and 20,000 species, out of which 697 species occur in india. Most plants in the family are herbs or shrubs, although a few species of asteraceae are trees or climbing vines. Asteraceae are an evolutionarily successful family of angiosperms with 23 000 species, occupying all continents except antarctica jeffrey, 2007. The plants are characterized by their composite flower heads and oneseeded achene fruits. They are distinguished by having flower heads capitula which are made of hundreds or thousands of tiny individual flowers. After the description of the asteraceae and the key to all the genera in illinois. Asteraceae, the aster, daisy, or composite family of the floweringplant order asterales.
This page was last edited on 20 december 2019, at 08. Find the perfect family asteraceae compositae stock photo. With more than 32,000 species, the asteraceae is arguably the largest of plant families although closely rivalled by the orchidaceae. In 1976, the asteraceae family was divided by carlquist into two subfamilies. As regards the world diversity of the family, only about 12% of genera have been studied using cytoembryology to identify the reproduction system. It is the largest family of dicotyledons, comprising 950 genera and 20,000 species. Cytotoxic activity of asteraceae and verbenaceae family. This volume presents an introduction to the family in australia, including a synoptic classification and keys, and treatments of all the. The aster family asteraceae is one of the largest angiosperm families, with.
Order asterales family compositae asteraceae it is the largest family among angiosperms, containing about 1,620 genera and 23,600 species distributation t slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Compositae the uniqueness of the aster or sunflower family is that what first seems to be a single large flower is actually a composite of many smaller flowers. List of plants in the family asteraceae britannica. Worldwide, the asteraceae embraces at least 20,000 species of flowering plants. Asteraceae familycharacteristic and representatives. The plants were collected in different regions of colombia, and their essential oils were extracted through microwaveassisted hydrodistillation and then. Asteraceae plants of the aster or sunflower family previously known as the composite family. Compositae, aster family, family asteraceae, family compositae type of. Identification of asteraceae family presented by guided by humaira bano dr. Allergens and plants search enter a full or partial species name to find more information on one of over 1200 potentially allergenic plants. Asteraceae compositae gallery wildflowers of the daisy family. Wikispecies has information related to petasites spurius this senecioneaerelated article is a stub. Asteraceae or compositae are regarded as one of the most influential families in the diversification and evolution of a large number of animals that heavily depends on their inflorescences to survive e.
Pdf taxonomic investigation of the family asteraceae compositae growing throughout the rajshahi. Members of the family are found in diverse habitats, from the high arctic tundra and polar deserts to the sonoran warmdesert scrub, and from alpine habitats to salt marshes. The family includes over 32,000 currently accepted species, in over 1,900 genera in subfamilies. Wikimedia commons has media related to petasites spurius. Asteraceae species as potential environmental factors of. Asteraceae is among the largest families of plants with more than 23,000 species that occupy all the continents except antarctica jeffrey, 2007. Coyote bush brush asteraceae sunflower family flowers. The value of sampling anomalous taxa in phylogenetic studies. Which of the two families actually is the larger is unclear, because of the uncertainty about how many extant species each family includes nearly all asteraceae bear their flowers in dense heads capitula or. Characters, distribution and types biology discussion. This family has about 25,000 different plant species, including many different varieties of daisy and aster, as well as the sunflower, yarrow, goldenrod, and dahlia. Molecular studies of the flowering plant family compositae asteraceae based on comparative dna sequence data.
Thirtysix essential oils from verbenaceae and asteraceae family plants along with their major constituents were evaluated to determine cytotoxicity on jurkat, hela, hepg2 and vero cell lines. All structured data from the file and property namespaces is available under the creative commons cc0 license. Volume 37asteraceae 1 is available for download as a pdf file. This is one of the largest plant families, with over 25,000 species distributed all over the world. Inflorescences in the asteraceae plant family, flower heads, or capitula, mimic single flowers but are highly compressed structures composed of. Asteraceae or compositae, the sunflower family, is the largest family of flowering plants, encompassing some fifteen hundred genera and nearly twentyfive thousand species. The most distinctive feature of asteraceae is their inflorescence structure, the highly compressed inflorescence branch system called the capitulum or flower head, in which all the flowers are attached to a receptacle that is surrounded by involucral.
Family asteraceae australian national botanic gardens. In terms of numbers of species, the asteraceae are rivaled only by the orchidaceae. The asteraceae family, also referred to as the compositae family, is one of the largest families of flowering plants. Family asteraceae definition of family asteraceae by the. Fertile hybrid of black and brown knapweeds centaurea nigra x centaurea jacea. It includes shrubs, perennials and annuals, but not trees or aquatics. The asteraceae family of plants is a widely distributed medicinal plant throughout the world and has been used since ancient time. Pages in category asteraceae the following 50 pages are in this category, out of 50 total. Members of this family have been used traditionally as. Dandelion and thistle, many are familiar garden flowers aster, chrysanthemum and echinacea. Flower heads in asteraceaerecruitment of conserved. The tribes are based on various characteristics including fragrance of leaves.
The family asteraceae or compositae known as the aster, daisy, or sunflower family is the largest family of flowering plants, in terms of number of species. Modes of reproduction in the chinese asteraceae are known only fragmentarily. Files are available under licenses specified on their description page. Considered as the family of greatest importance among the phanerogams, representing. Early evolution of the angiosperm clade asteraceae in the. There are four wellestablished species within the subsection lactuca, the cultivated l. One of the most important features of asteraceae is the presence of flowers tightly packed into a. The asteraceae species are distributed from the polar zone to the subtropical and tropical. With 418 genera and 24 species table 1, asteraceae is, numerically, the largest family in the flora of north america north of mexico. The family has a cosmopolitan distribution, with species ranging from subpolar to tropical regions, colonizing a wide variety of habitats. Asteraceae compositae the asteraceae are herbs, shrubs, or less commonly trees and are arguably the largest family of flowering plants, comprising about 1,100 genera and 20,000 species that are characterized by having the flowers reduced and organized into an involucrate pseudanthium in the form of a head or capitulum. Petasites spurius is a flowering plant of the genus petasites in the family asteraceae. Classification for kingdom plantae down to family asteraceae. White fluffy female and yellowish male on separate shrubs, small.
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