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- Helianthus abstract "Helianthus L. /ˌhiːliˈænθəs/ (sunflower) is a genus of plants comprising about 52 species in the Asteraceae family, all of which are native to North America. The common name "sunflower" also applies to the popular annual species Helianthus annuus. This and other species, notably Jerusalem artichoke (H. tuberosus), are cultivated in temperate regions as food crops and ornamental plants.The genus is one of many in the Asteraceae that are known as sunflowers. It is distinguished technically by the fact that the ray flowers, when present, are sterile, and by the presence on the disk flowers of a pappus that is of two awn-like scales that are cauducous (that is, easily detached and falling at maturity). Some species also have additional shorter scales in the pappus, and there is one species that lacks a pappus entirely. Another technical feature that distinguishes the genus more reliably, but requires a microscope to see, is the presence of a prominent, multicellular appendage at the apex of the style.There is quite a bit of variability among the perennial species that make up the bulk of the species in the genus. Some have most or all of the leaves in a rosette at the base of the plant and produce a flowering stem that has leaves that are reduced in size. Most of the perennials have disk flowers that are entirely yellow, but a few have disk flowers with reddish lobes. One species, H. radula, lacks ray flowers altogether.The domesticated sunflower, Helianthus annuus, is the most familiar species. Perennial sunflower species are not as popular for gardens due to their tendency to spread rapidly and become invasive.".
- Helianthus class Eudicots.
- Helianthus division Flowering_plant.
- Helianthus family Asteraceae.
- Helianthus family Heliantheae.
- Helianthus family Helianthoideae.
- Helianthus kingdom Plant.
- Helianthus order Asterales.
- Helianthus order Asterids.
- Helianthus synonym "Harpalium (Cass.) Cass.)".
- Helianthus thumbnail A_sunflower.jpg?width=300.
- Helianthus wikiPageExternalLink florataxon.aspx?flora_id=1&taxon_id=114871.
- Helianthus wikiPageID "851640".
- Helianthus wikiPageRevisionID "602811278".
- Helianthus familia Asteraceae.
- Helianthus genus "Helianthus".
- Helianthus genusAuthority Carl_Linnaeus.
- Helianthus hasPhotoCollection Helianthus.
- Helianthus imageCaption Sunflower.
- Helianthus name "Helianthus".
- Helianthus ordo Asterales.
- Helianthus regnum "Plantae".
- Helianthus subdivision "See text.".
- Helianthus subdivisionRanks "Species".
- Helianthus subfamilia Helianthoideae.
- Helianthus synonyms "Harpalium ( Cass.)".
- Helianthus tribus Heliantheae.
- Helianthus unrankedClassis Eudicots.
- Helianthus unrankedDivisio Flowering_plant.
- Helianthus unrankedOrdo Asterids.
- Helianthus subject Category:Asteraceae_genera.
- Helianthus subject Category:Flora_of_Delaware.
- Helianthus subject Category:Flora_of_Maryland.
- Helianthus subject Category:Flora_of_Pennsylvania.
- Helianthus subject Category:Flora_of_Virginia.
- Helianthus subject Category:Flora_of_Washington,_D.C..
- Helianthus subject Category:Flora_of_West_Virginia.
- Helianthus subject Category:Helianthus.
- Helianthus type Eukaryote.
- Helianthus type Plant.
- Helianthus type Species.
- Helianthus type Organism.
- Helianthus comment "Helianthus L. /ˌhiːliˈænθəs/ (sunflower) is a genus of plants comprising about 52 species in the Asteraceae family, all of which are native to North America. The common name "sunflower" also applies to the popular annual species Helianthus annuus. This and other species, notably Jerusalem artichoke (H. tuberosus), are cultivated in temperate regions as food crops and ornamental plants.The genus is one of many in the Asteraceae that are known as sunflowers.".
- Helianthus label "Helianthus".
- Helianthus label "Helianthus".
- Helianthus label "Helianthus".
- Helianthus label "Helianthus".
- Helianthus label "Helianthus".
- Helianthus label "Hélianthe".
- Helianthus label "Sonnenblumen (Gattung)".
- Helianthus label "Słonecznik".
- Helianthus label "Подсолнечник".
- Helianthus label "دوار الشمس (جنس)".
- Helianthus label "ヒマワリ属".
- Helianthus label "向日葵属".
- Helianthus sameAs Slunečnice.
- Helianthus sameAs Sonnenblumen_(Gattung).
- Helianthus sameAs Ηλίανθος.
- Helianthus sameAs Helianthus.
- Helianthus sameAs Helianthus.
- Helianthus sameAs Hélianthe.
- Helianthus sameAs Helianthus.
- Helianthus sameAs Helianthus.
- Helianthus sameAs ヒマワリ属.
- Helianthus sameAs Helianthus.
- Helianthus sameAs Słonecznik.
- Helianthus sameAs Helianthus.
- Helianthus sameAs m.03h54r.
- Helianthus sameAs Q26949.
- Helianthus sameAs Q26949.
- Helianthus wasDerivedFrom Helianthus?oldid=602811278.
- Helianthus depiction A_sunflower.jpg.
- Helianthus isPrimaryTopicOf Helianthus.
- Helianthus name "Helianthus".
