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Carduus × Arvaticus
''Carduus'' is a genus of flowering plants in the family Asteraceae, and the tribe Cardueae, one of two genera considered to be true thistles, the other being ''Cirsium''. Plants of the genus are known commonly as plumeless thistles.''Carduus''. Integrated Taxonomic Information System (ITIS).''Carduus''. Flora of North America. They are native to temperate Eurasia and North Africa, and several are known elsewhere as . This genus is noted for its disproportionate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carduus Crispus
''Carduus crispus'', the curly plumeless thistle or welted thistle, is a Biennial plant, biennial herb in the daisy family Asteraceae. It is native to Eurasia and has been naturalized in North America and India. Description ''Carduus crispus'' has upright growth, and individuals can grow up to tall, with the typical height being . This species flowers from May and seeds ripen in July. Its main form of seed dispersal is Biological dispersal, by wind. The leaves of this plant are Leaf#Divisions of the blade, simple, Leaf#Divisions of the blade, alternate and they start at the base of the pant. The leaves cannot be in Leaflet (botany), leaflets, but they can vary between being lobed and unlobed. The blade edges of the leaves can either be toothed, have lobes, or have both. The top of the leaves does not have a lot of hair, while the underside of the leaves has white hair. The size of the leaf blades varies from in length, and the Petiole (botany), petioles are winged at the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Glossary Of Botanical Terms
This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Glossary of leaf morphology. For other related terms, see Glossary of phytopathology, Glossary of lichen terms, and List of Latin and Greek words commonly used in systematic names. A B ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carduus Acanthoides
''Carduus acanthoides'', known as the spiny plumeless thistle, welted thistle, or plumeless thistle, is a biennial plant species of thistle in the family Asteraceae. The plant is native to Europe and Asia and introduced in many other areas, where it is sometimes considered an invasive species. Description ''Carduus acanthoides'' may exceed in height and can form weedy monotypic stands. The stem and foliage are spiny and sometimes woolly. The specific epithet ''acanthoides'' refers to its spiny foliage. The plant starts from a flat, basal rosette and then bolts an erect stem with occasional toothed, wrinkled, spiny leaves. The leaves are long with lobed or pinnately-divided edges. The abaxial surface (underside) of the leaf is somewhat hairy. At the top of each branch of the stem is an inflorescence of one to several flower heads, each rounded, covered in spiny phyllaries, and bearing many threadlike, purple or pink disc florets. Each flowerhead is around across. It flowers th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungus
A fungus (: fungi , , , or ; or funguses) is any member of the group of eukaryotic organisms that includes microorganisms such as yeasts and mold (fungus), molds, as well as the more familiar mushrooms. These organisms are classified as one of the kingdom (biology)#Six kingdoms (1998), traditional eukaryotic kingdoms, along with Animalia, Plantae, and either Protista or Protozoa and Chromista. A characteristic that places fungi in a different kingdom from plants, bacteria, and some protists is chitin in their cell walls. Fungi, like animals, are heterotrophs; they acquire their food by absorbing dissolved molecules, typically by secreting digestive enzymes into their environment. Fungi do not photosynthesize. Growth is their means of motility, mobility, except for spores (a few of which are flagellated), which may travel through the air or water. Fungi are the principal decomposers in ecological systems. These and other differences place fungi in a single group of related o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Puccinia Carduorum
''Puccinia'' is a genus of fungi. All species in this genus are obligate plant pathogens and are known as rusts. The genus contains about 4000 species. The genus name of ''Puccinia'' is in honour of Tommaso Puccini (died 1735), who was an Italian doctor and botanist who taught anatomy at Hospital of Santa Maria Nuova in Florence. The genus was circumscribed by Pier Antonio Micheli in Nov. Pl. Gen. on page 213 in 1729. Taxonomy Examples of ''Puccinia'' rusts and the diseases they cause: * '' Puccinia asparagi'' - Asparagus rust * '' Puccinia evadens'' - Coyote brush rust * '' Puccinia graminis'' - Stem rust, also known as black rust * '' Puccinia horiana'' - Chrysanthemum white rust * '' Puccinia mariae-wilsoniae'' - Spring beauty rust * '' Puccinia poarum'' - Coltsfoot rust gall * '' Puccinia psidii'' - Guava rust or eucalyptus rust * '' Puccinia recondita'' - Brown rust * '' Puccinia sessilis'' - Arum rust and Ramsons rust * '' Puccinia striiformis'' - Stripe rust, also k ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cheilosia Corydon
''Cheilosia'' is a genus of hoverfly. Most ''Cheilosia'' are black or largely un-coloured, lacking the bright colours and patterns of many hoverfly species. It is one of the most species diverse genera of hoverflies. The biology of many species is little understood, but where known, the larva A larva (; : larvae ) is a distinct juvenile form many animals undergo before metamorphosis into their next life stage. Animals with indirect development such as insects, some arachnids, amphibians, or cnidarians typically have a larval phase ...e of ''Cheilosia'' species feed in the stems of plants or in fungi. Systematics Species include: References External links Images representing ''Cheilosia'' {{Authority control Hoverfly genera Rhingiini Taxa named by Johann Wilhelm Meigen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trichosirocalus Horridus
''Trichosirocalus horridus'' is a species of true weevil, native to Europe. It is a biological pest control agent that was introduced into the United States in 1974 to control exotic thistles, especially in the ''Cirsium'' and ''Carduus'' genera. Life history ''Trichosirocalus horridus'' feeds on the rosettes of thistles, with the larvae causing most damage to the plant. Nontarget impacts In 2004, ''T. horridus'' was observed feeding on the native thistle '' Cirsium altissimum'' L. in Nebraska. The weevil was observed on the native thistle at about the same rate as the targeted invasive thistle (''Cirsium vulgare''). ''T. horridus'' has also been observed feeding on 5 native ''Cirsium ''Cirsium'' is a genus of Perennial plant, perennial and Biennial plant, biennial flowering plants in the Asteraceae, one of several genera known commonly as thistles. They are more precisely known as plume thistles. These differ from other thist ...'' species in Tennessee. References Further ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Rhinocyllus Conicus
''Rhinocyllus conicus'' is a species of true weevil. It is best known as a controversial agent of biological pest control which has been used against noxious thistles in the genera ''Carduus'', ''Cirsium'', ''Onopordum'', and ''Silybum''. The adult weevil is black and covered in a thin black and yellowish mottled coat of hairs. It is a short-snouted beetle up to 6 millimeters in total body length. The female lays over 100 eggs on or near the bracts of the thistle flower head. She covers the eggs with masticated plant tissue to protect them from predators. When the white larva emerges from its egg it burrows into the flower head and feeds on the flower parts and developing seeds. As it grows it deposits frass and chewed plant tissue on the walls of its chamber, producing a rigid protective shell in which it will pupate. Pupation takes up to two weeks and when the weevil emerges as an adult it remains inside the chamber for a few more weeks before tunneling out of the plant. Dam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
