There are four wellestablished species within the subsection lactuca, the cultivated l. Asteraceae plants of the aster or sunflower family previously known as the composite family. Find the perfect family asteraceae compositae stock photo. Asteraceae is among the largest families of plants with more than 23,000 species that occupy all the continents except antarctica jeffrey, 2007.
Learn about the comparison between orchidaceae and asteraceae. 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. A brief taxonomic description of each species is given with local name and valid name. Wikimedia commons has media related to petasites spurius. The description of the leaf morphology of the species consisted of phylotaxis, leaf type. Leaves are alternate with toothed edges, seen in groups of. The asteraceae species are distributed from the polar zone to the subtropical and tropical.
White fluffy female and yellowish male on separate shrubs, small. 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. This page was last edited on 20 december 2019, at 08. This is one of the largest plant families, with over 25,000 species distributed all over the world.
The asteraceae family compositae is one of the major group of flowering plants, comprising approximately genera and 23,000 species widespread worldwide heywood 1993. They are distinguished by having flower heads capitula which are made of hundreds or thousands of tiny individual flowers. Coyote bush brush asteraceae sunflower family flowers. Family asteraceae definition of family asteraceae by the. 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. Fertile hybrid of black and brown knapweeds centaurea nigra x centaurea jacea.
Asteraceae simple english wikipedia, the free encyclopedia. All structured data from the file and property namespaces is available under the creative commons cc0 license. 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. The plants were collected in different regions of colombia, and their essential oils were extracted through microwaveassisted hydrodistillation and then. After the description of the asteraceae and the key to all the genera in illinois. Pdf taxonomic studies on the family asteraceae compositae of. 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. List of plants in the family asteraceae britannica. The asteraceae family, also referred to as the compositae family, is one of the largest families of flowering plants.
It includes shrubs, perennials and annuals, but not trees or aquatics. Allergens and plants search enter a full or partial species name to find more information on one of over 1200 potentially allergenic plants. In terms of numbers of species, the asteraceae are rivaled only by the orchidaceae. It is the largest family of dicotyledons, comprising 950 genera and 20,000 species. Flower heads in asteraceaerecruitment of conserved. Inflorescences in the asteraceae plant family, flower heads, or capitula, mimic single flowers but are highly compressed structures composed of. As regards the world diversity of the family, only about 12% of genera have. Volume 37asteraceae 1 is available for download as a pdf file. The family includes over 32,000 currently accepted species, in over 1,900 genera in subfamilies. Identification of asteraceae family presented by guided by humaira bano dr. Cytotoxic activity of asteraceae and verbenaceae family.
Leaf morphology and anatomy of asteraceae of the pampas. Characters, distribution and types biology discussion. The asteraceae family of plants is a widely distributed medicinal plant throughout the world and has been used since ancient time. Asteraceae definition of asteraceae by the free dictionary. Classification for kingdom plantae down to family asteraceae. The success and wide distribution of the asteraceae family in the most diverse habitats have been attributed to the diversity of secretory structures. Asteraceae are an evolutionarily successful family of angiosperms with 23 000 species, occupying all continents except antarctica jeffrey, 2007.
Considered as the family of greatest importance among the phanerogams, representing. One of the most important features of asteraceae is the presence of flowers tightly packed into a. Family asteraceae australian national botanic gardens. It is the largest family of dicotyledons, comprising 950 genera and 20,000 species, out of which 697 species occur in india. Pages in category asteraceae the following 50 pages are in this category, out of 50 total. Asteraceae species as potential environmental factors of.
Members of this family have been used traditionally as. Asteraceae, the aster, daisy, or composite family of the floweringplant order asterales. Contents introduction habitat habit vegetative characters floral characters division of family medicinal importance. In 1976, the asteraceae family was divided by carlquist into two subfamilies. Modes of reproduction in the chinese asteraceae are known only fragmentarily. Early evolution of the angiosperm clade asteraceae in the. Most plants in the family are herbs or shrubs, although a few species of asteraceae are trees or climbing vines. Files are available under licenses specified on their description page. Plants are herbaceous at first, but may become woody at the base by the second year. Embed for hosted blogs and item description tags want more. 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. They are world wide in distribution and abundant in tropics and in cold arctic or alpines regions.
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. We determined the distribution of a chloro plast dna inversion among 80 species representing 16 tribes of the asteraceae and 10 putatively related families. Molecular studies of the flowering plant family compositae asteraceae based on comparative dna sequence data. 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. This volume presents an introduction to the family in australia, including a synoptic classification and keys, and treatments of all the. Asteraceae familycharacteristic and representatives. 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. With 418 genera and 24 species table 1, asteraceae is, numerically, the largest family in the flora of north america north of mexico. With more than 32,000 species, the asteraceae is arguably the largest of plant families although closely rivalled by the orchidaceae. Asteraceae or compositae, the sunflower family, is the largest family of flowering plants, encompassing some fifteen hundred genera and nearly twentyfive thousand species.
Worldwide, the asteraceae embraces at least 20,000 species of flowering plants. The tribes are based on various characteristics including fragrance of leaves. The family has a cosmopolitan distribution, with species ranging from subpolar to tropical regions, colonizing a wide variety of habitats. The value of sampling anomalous taxa in phylogenetic studies. Pdf taxonomic investigation of the family asteraceae compositae growing throughout the rajshahi. As regards the world diversity of the family, only about 12% of genera have been studied using cytoembryology to identify the reproduction system. Dandelion and thistle, many are familiar garden flowers aster, chrysanthemum and echinacea. 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. Stems are branched with one flowerhead at each tip. Asteraceae compositae gallery wildflowers of the daisy family.
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. Asteraceae plants with heads composed of many florets. 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. Taxonomic discussion on the asteraceae is included under the relevant tribes.
Habitplants terrestrial, often vinelike, mostly herbaceous, perennating by pseudobulbs. Compositae, aster family, family asteraceae, family compositae type of. Most species are herbs, but some are shrubs and a few are trees. 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. Pdf the asteraceae is one of the largest families of flowering plants. Volume 37 of the flora of australia is the first of three volumes covering the family asteraceae. Flora of australia volume 37asteraceae 1 department of. The plants are characterized by their composite flower heads and oneseeded achene fruits. Asteraceae 2 taxonomic discussion on the asteraceae is included under the relevant tribes. The aster family asteraceae is one of the largest angiosperm families, with. 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.
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