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Helminthia (gastropd)
''Helminthotheca'' (commonly called ox-tongue) is a genus in the tribe Cichorieae of the family Asteraceae. ''Helminthotheca'' is closely related to the genus ''Picris'', both within the Hypochaeridinae subtribe. ; Species * ''Helminthotheca aculeata'' - Italy, Algeria, Morocco, Tunisia * ''Helminthotheca balansae'' - Algeria, Morocco * ''Helminthotheca comosa'' - Algeria, Morocco, southern Spain, Gibraltar * ''Helminthotheca echioides'' (syn. ''Picris echioides'') - widespread across much of Europe and the Mediterranean from Ireland + Canary Islands to Poland + Iran; naturalized in Australia, North and South America * ''Helminthotheca glomerata'' - Algeria, Tunisia, Morocco * ''Helminthotheca spinosa ''Helminthotheca'' (commonly called ox-tongue) is a genus in the tribe Cichorieae of the family Asteraceae. ''Helminthotheca'' is closely related to the genus ''Picris'', both within the Hypochaeridinae subtribe. ; Species * ''Helminthotheca ac ...'' - central and southern Port ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helminthotheca Echioides
''Helminthotheca echioides'', known as bristly (or prickly) oxtongue, is a sprawling annual plant, annual or biennial plant, biennial herb native to Europe and North Africa. It was originally placed within the genus ''Picris'' but is often separated within the small genus ''Helminthotheca'' alongside a few other (mainly North African) plants which also have the distinctive outer row of bracts around the flowerheads. It is a Ruderal species, ruderal plant, found on waste ground and agricultural soils around the world, and in some places it is considered a troublesome weed. Description Bristly oxtongue is an annual to biennial Herbaceous plant, herb with an erect or sprawling habit that grows up to tall (often up to 150 cm in fertile soils and shady places), with a solid, furrowed stem and spreading branches. The basal rosette leaves are long, oblanceolate with a short Petiole (botany), petiole, whereas the cauline leaves are lanceolate and sessile with clasping, cordate b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Gottfried Zinn
Johann Gottfried Zinn (; December 4, 1727 – April 6, 1759) was a German Anatomy, anatomist and botanist and was a member of the Prussian Academy of Sciences, Berlin Academy. Biography Johann Gottfried Zinn was born in Schwabach. Considering his short life span, Zinn made a great contribution to the study of anatomy. In his book ''Descriptio anatomica oculi humani'', he provided the first detailed and comprehensive anatomy of the human eye. In 1753 Johann Gottfried Zinn became director of the Botanic garden of the University of Göttingen, and in 1755, professor in the medical faculty. In 1757 Zinn described the orchid genus ''Epipactis'' that belongs to the family (biology), family Orchidaceae. He died in Göttingen. Eponyms Botanist Carl Linnaeus designated a genus of flowers in the family Asteraceae native from Mexico as ''Zinnia'' in his honour. He coined the anatomic terms: * ''Zonula ciliaris Zinnii'', now called ''Zonule of Zinn'' * ''Anulus tendineus communis'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. :E.g. ''Panthera leo'' (lion) and ''Panthera onca'' (jaguar) are two species within the genus ''Panthera''. ''Panthera'' is a genus within the family Felidae. The composition of a genus is determined by taxonomy (biology), taxonomists. The standards for genus classification are not strictly codified, so different authorities often produce different classifications for genera. There are some general practices used, however, including the idea that a newly defined genus should fulfill these three criteria to be descriptively useful: # monophyly – all descendants of an ancestral taxon are grouped together (i.e. Phylogeneti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cichorieae
The Cichorieae (also called Lactuceae) are a tribe in the plant family Asteraceae that includes 93 genera, more than 1,600 sexually reproductive species and more than 7,000 apomictic species. They are found primarily in temperate regions of the Eastern Hemisphere. Cichorieae all have milky latex and flowerheads that only contain one type of floret. The genera '' Gundelia'' and '' Warionia'' only have disk florets, while all other genera only have ligulate florets. The genera that contain most species are ''Taraxacum'' (Crepidinae subtribe) with about 1,600 apomictic species, '' Hieracium'' with about 770 sexually reproducing and 5,200 apomictic species, and '' Pilosella'' with 110 sexually reproducing and 700 apomictic species (both Hieraciinae). Well-known members include lettuce, chicory, dandelion, and salsify. Description Most species are herbaceous, perennial, short-lived or annual plants, rarely subshrubs, shrubs or vines. All Cichorieae-species have latex canals in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae
Asteraceae () is a large family (biology), family of flowering plants that consists of over 32,000 known species in over 1,900 genera within the Order (biology), order Asterales. The number of species in Asteraceae is rivaled only by the Orchidaceae, and which is the larger family is unclear as the quantity of Extant taxon, extant species in each family is unknown. The Asteraceae were first described in the year 1740 and given the original name Composita, Compositae. The family is commonly known as the aster, Daisy (flower), daisy, composite, or sunflower family. Most species of Asteraceae are herbaceous plants, and may be Annual plant, annual, Biennial plant, biennial, or Perennial plant, perennial, but there are also shrubs, vines, and trees. The family has a widespread distribution, from subpolar to tropical regions, in a wide variety of habitats. Most occur in Hot desert climate, hot desert and cold or hot Semi-arid climate, semi-desert climates, and they are found on ever ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Picris
''Picris'' (oxtongues) is a genus of flowering plants in the family Asteraceae described as a genus by Linnaeus in 1753. ''Picris'' species are used as food plants by the larvae of some Lepidoptera species, such as the grass moth ''Diasemia reticularis''. '' Schinia cardui'' feeds exclusively on '' P. hieracioides''. The genus is widespread across Europe, Asia, Africa, and Australia. Etymology ''Picris'' is from the Greek meaning 'bitter', in reference to the bitter taste of some species in the genus. Description Erect annual to perennial taprooted herbs, mostly branching, stem and leaves bearing stiff bristly hairs, with rather large, usually corymbose or paniculate heads of yellow flowers. Taxonomy Taxonomic history The genus ''Picris'' was first validly described by Linnaeus in 1753 with the genus being accepted by a number of secondary sources including Plants of the World Online. Linnaeus initially described four species with ''P. hieracioides'', ''P. echioi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helminthotheca Aculeata
''Helminthotheca'' (commonly called ox-tongue) is a genus in the tribe Cichorieae of the family Asteraceae. ''Helminthotheca'' is closely related to the genus ''Picris'', both within the Hypochaeridinae subtribe. ; Species * '' Helminthotheca aculeata'' - Italy, Algeria, Morocco, Tunisia * '' Helminthotheca balansae'' - Algeria, Morocco * '' Helminthotheca comosa'' - Algeria, Morocco, southern Spain, Gibraltar * ''Helminthotheca echioides ''Helminthotheca echioides'', known as bristly (or prickly) oxtongue, is a sprawling annual plant, annual or biennial plant, biennial herb native to Europe and North Africa. It was originally placed within the genus ''Picris'' but is often separa ...'' (syn. ''Picris echioides'') - widespread across much of Europe and the Mediterranean from Ireland + Canary Islands to Poland + Iran; naturalized in Australia, North and South America * '' Helminthotheca glomerata'' - Algeria, Tunisia, Morocco * '' Helminthotheca spinosa'' - central and southern ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae Genera
, Plants of the World Online listed 1,706 accepted genera in the family Asteraceae. Those genera are listed with their author citations. Taxonomic synonyms are not included. A List of genera is from Plants of the World Online unless otherwise cited. *''Abrotanella'' Cass. *'' Acamptopappus'' A.Gray – goldenhead *'' Acanthocephalus'' Kar. & Kir. *'' Acanthocladium'' F.Muell. *'' Acanthodesmos'' C.D.Adams & duQuesnay *'' Acanthospermum'' Schrank – starburr *'' Acanthostyles'' R.M.King & H.Rob. *'' Achillea'' L. – yarrow *'' Achnophora'' F.Muell. *'' Achnopogon'' Maguire, Steyerm. & Wurdack *'' Achyrachaena'' Schauer – blow wives *'' Achyranthemum'' N.G.Bergh *'' Achyrocline'' (Less.) DC. *'' Achyropappus'' Kunth *'' Acilepidopsis'' H.Rob. *'' Acilepis'' D.Don *'' Acmella'' Rich. ex Pers. *'' Acomis'' F.Muell. *'' Acourtia'' D.Don – desert peony *'' Acrisione'' B.Nord. *'' Acritopappus'' R.M.King & H.Rob. *'' Actinobole'' Endl. *'' Acunniana'' Orchard *'' Adei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
