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'''''Barkleyanthus''''' is a [[monotypic taxon|monotypic genus]]<ref name=de>de Vivar, A. R., et al. (2007). [http://www.jmcs.org.mx/OLD/PDFS/V51/N3/07-Tribe.pdf Secondary metabolites from Mexican species of the tribe Senecioneae (Asteraceae).] ''Revista de la Sociedad Química de México'' 51(3), 160-72.</ref> of [[flowering plant]]s in the aster family, [[Asteraceae]], containing the single species '''''[[Barklyanthus salicifolius]]''''', a plant formerly classified in the genus ''[[Senecio]]''<ref name=fna>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220001532 ''Barkleyanthus salicifolius''.] Flora of North America.</ref><ref name=grin>{{GRIN | ''Barkleyanthus salicifolius'' | 452824 | accessdate = 21 January 2018}}</ref><ref name=itis>[https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=509455 ''Barkleyanthus salicifolius''.] Integrated Taxonomic Information System (ITIS).</ref> It is native to [[North America|North]] and [[Central America]], where its distribution extends from the [[southwestern United States]] to [[El Salvador]].<ref name=grin/> Its common names include '''willow ragwort''',<ref name=itis/> '''willow groundsel''', '''Barkley's-ragwort''',<ref name=ns>[http://www.natureserve.org/explorer/servlet/NatureServe?searchName=Barkleyanthus+salicifolius ''Barkleyanthus salicifolius''.] NatureServe. 2013.</ref> and '''jarilla'''.<ref name=de/>
'''''Barkleyanthus''''' is a [[monotypic taxon|monotypic genus]]<ref name=de>de Vivar, A. R., et al. (2007). [http://www.jmcs.org.mx/OLD/PDFS/V51/N3/07-Tribe.pdf Secondary metabolites from Mexican species of the tribe Senecioneae (Asteraceae).] ''Revista de la Sociedad Química de México'' 51(3), 160-72.</ref> of [[flowering plant]]s in the aster family, [[Asteraceae]], containing the single species '''''[[Barklyanthus salicifolius]]''''', a plant formerly classified in the genus ''[[Senecio]]''<ref name=fna>[http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=220001532 ''Barkleyanthus salicifolius'']. Flora of North America.</ref><ref name=grin>{{GRIN | ''Barkleyanthus salicifolius'' | 452824 | accessdate = 21 January 2018}}</ref><ref name=itis>[https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=509455 ''Barkleyanthus salicifolius''.] Integrated Taxonomic Information System (ITIS).</ref> It is native to [[North America|North]] and [[Central America]], where its distribution extends from the [[southwestern United States]] to [[El Salvador]].<ref name=grin/> Its common names include '''willow ragwort''',<ref name=itis/> '''willow groundsel''', '''Barkley's-ragwort''',<ref name=ns>[http://www.natureserve.org/explorer/servlet/NatureServe?searchName=Barkleyanthus+salicifolius ''Barkleyanthus salicifolius''.] NatureServe. 2013.</ref> and '''jarilla'''.<ref name=de/>


This plant is a [[shrub]] producing a branching stem usually about one to two meters tall, but known to exceed 4 meters at times. The leaves are roughly lance-shaped and are alternately arranged, sometimes more densely toward the ends of branches. They are up to 10 or 15 centimeters long. The [[inflorescence]] is often a wide array of several [[pseudanthium|flower heads]], but they may also be clustered in the leaf axils or branch tips. The head contains a few yellow ray florets, which are [[gynoecium|pistillate]], and up to 25 or more yellow disc florets, which are bisexual. The fruit is a rough-textured, pyramidal or prism-shaped cypsela up to a centimeter long including its [[pappus (flower structure)|pappus]] of many barbed white bristles.<ref name=fna/>
This plant is a [[shrub]] producing a branching stem usually about one to two meters tall, but known to exceed 4 meters at times. The leaves are roughly lance-shaped and are alternately arranged, sometimes more densely toward the ends of branches. They are up to 10 or 15 centimeters long. The [[inflorescence]] is often a wide array of several [[pseudanthium|flower heads]], but they may also be clustered in the leaf axils or branch tips. The head contains a few yellow ray florets, which are [[gynoecium|pistillate]], and up to 25 or more yellow disc florets, which are bisexual. The fruit is a rough-textured, pyramidal or prism-shaped cypsela up to a centimeter long including its [[pappus (flower structure)|pappus]] of many barbed white bristles.<ref name=fna/>

Revision as of 16:22, 23 April 2018

Barkleyanthus

Apparently Secure  (NatureServe)
Scientific classification
Kingdom:
Plantae
(unranked):
Angiosperms
(unranked):
Eudicots
(unranked):
Asterids
Order:
Asterales
Family:
Asteraceae
Tribe:
Senecioneae
Genus:
Barkleyanthus

H.Rob. & Brettell
Species:
B. salicifolius
Binomial name
Barkleyanthus salicifolius
(Kunth) H.Rob. & Brettell
Synonyms[1]

Barkleyanthus is a monotypic genus[2] of flowering plants in the aster family, Asteraceae, containing the single species Barklyanthus salicifolius, a plant formerly classified in the genus Senecio[3][4][5] It is native to North and Central America, where its distribution extends from the southwestern United States to El Salvador.[4] Its common names include willow ragwort,[5] willow groundsel, Barkley's-ragwort,[6] and jarilla.[2]

This plant is a shrub producing a branching stem usually about one to two meters tall, but known to exceed 4 meters at times. The leaves are roughly lance-shaped and are alternately arranged, sometimes more densely toward the ends of branches. They are up to 10 or 15 centimeters long. The inflorescence is often a wide array of several flower heads, but they may also be clustered in the leaf axils or branch tips. The head contains a few yellow ray florets, which are pistillate, and up to 25 or more yellow disc florets, which are bisexual. The fruit is a rough-textured, pyramidal or prism-shaped cypsela up to a centimeter long including its pappus of many barbed white bristles.[3]

This plant is abundant in parts of its range, particularly in Mexico, sometimes becoming weedy.[3] It flowers year-round, especially in spring,[3] and it may be in full flower at the end of the dry season.[2] It is admired for its yellow flower heads and is cultivated as an ornamental plant.[2][3]

The plant is used in Mexican traditional medicine to treat fever and rheumatism.[7] In Chiapas it is used as an insecticide in corn supplies.[7] Secondary metabolites isolated from the species include pyrrolizidine alkaloids, lactones, furoeremophilanes, and sesquiterpenes.[7]

References

  1. ^ The Plant List, Barkleyanthus salicifolius (Kunth) H.Rob. & Brettell
  2. ^ a b c d de Vivar, A. R., et al. (2007). Secondary metabolites from Mexican species of the tribe Senecioneae (Asteraceae). Revista de la Sociedad Química de México 51(3), 160-72.
  3. ^ a b c d e Barkleyanthus salicifolius. Flora of North America.
  4. ^ a b "Barkleyanthus salicifolius". Germplasm Resources Information Network. Agricultural Research Service, United States Department of Agriculture. Retrieved 21 January 2018.
  5. ^ a b Barkleyanthus salicifolius. Integrated Taxonomic Information System (ITIS).
  6. ^ Barkleyanthus salicifolius. NatureServe. 2013.
  7. ^ a b c González, C. P., et al. (2013). Anti-inflammatory activity and composition of Senecio salignus Kunth. BioMed Research International 2013.


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