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Helminthotheca
''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, Tunisia * ''Helminthotheca balansae'' - Algeria, Morocco * ''Helminthotheca comosa'' - Algeria, Morocco, Spain, Portugal, 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 References Asteraceae genera Cichorieae {{Cichorieae-stub ... [...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 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 bases. On the leav ... [...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, Tunisia * '' Helminthotheca balansae'' - Algeria, Morocco * '' Helminthotheca comosa'' - Algeria, Morocco, Spain, Portugal, 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 References Asteraceae genera Cichorieae {{Cich ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helminthotheca Balansae
''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, Tunisia * '' Helminthotheca balansae'' - Algeria, Morocco * '' Helminthotheca comosa'' - Algeria, Morocco, Spain, Portugal, 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 References Asteraceae genera Cichorieae {{Cicho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helminthotheca Comosa
''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, Tunisia * ''Helminthotheca balansae'' - Algeria, Morocco * '' Helminthotheca comosa'' - Algeria, Morocco, Spain, Portugal, 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 References Asteraceae genera Cichorieae {{Cichor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Helminthotheca Glomerata
''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, Tunisia * ''Helminthotheca balansae'' - Algeria, Morocco * ''Helminthotheca comosa'' - Algeria, Morocco, Spain, Portugal, 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 References Asteraceae genera Cichorieae {{Cichori ... [...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 Apomixis, 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 Glossary of botanical terms#floret, floret. The genera ''Gundelia'' and ''Warionia'' only have Asteraceae#Floral heads, disk florets, while all other genera only have Asteraceae#Floral heads, 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, Taraxacum, dandelion, and Tragopogon, salsify. Description Most species are Herbaceous plant, herba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johann Gottfried Zinn
Johann Gottfried Zinn () (December 6, 1727 – April 6, 1759) was a German anatomist and botanist and was a member of the 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 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'' also known as ''Annulus of Zinn The common tendinous r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus comes above species and below family (taxonomy), family. 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 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. 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 species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, 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 and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technicall ... [...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. 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. echioides'', ''P. pyrenaica'' and ''P. asplenioides''. In 1913, Britton and Brown proposed ''P. asplenioides'' as the type species for th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Asteraceae Genera
The family Asteraceae, alternatively Compositae, consists of over 32,000 known species of flowering plants in over 1,900 genera within the order Asterales. Commonly referred to as the aster, daisy, composite, or sunflower family, Compositae were first described in the year 1740. 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 species in each family is unknown. Most species of Asteraceae are annual, biennial, or perennial herbaceous plants, 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 and cold or hot semi-desert climates, and they are found on every continent but Antarctica. The primary common characteristic is the existence of sometimes hundreds of tiny individual florets which are held together by protective involucres in flower heads, or more technically ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
