Senecio

Taxobox

---

image_width = 260px
image_caption = "Senecio vulgaris", an illustration from 1885.
regnum = Plantae
divisio = Magnoliophyta
classis = Magnoliopsida
subclassis = Asteridae
unranked_ordo = Euasterids II
ordo = Asterales
familia = Asteraceae
subfamilia = Asteroideae
tribus = Senecioneae
genus = "Senecio"
genus_authority = L.
type_species = "Senecio vulgaris" L.
subdivision_ranks = Species
subdivision =Some 1500, see text
synonyms ="Dendrosenecio"
"Jacobaea" L.
"Culcitium" Humb. & Bonpl

"Senecio" is a genus of the daisy family (Asteraceae)that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters. Though of late the genus has been reviewed and split up, it still contains a vast number of species (about 1,500) of extremely wide form including leaf succulents, stem and tuber succulents, annuals, perennials, aquatic forms, climbers, shrubs and small trees. Some species produce natural pesticides (especially alkaloids) to deter or even kill animals that would eat them.

"Senecio" species are used as food plants by the larvae of some Lepidoptera species - see list of Lepidoptera that feed on Senecio.

Common names

* _en. Groundsel, Ragwortcite web
url = http://www.vet.purdue.edu/depts/addl/toxic/plant24.htm
title = 24. GROUNDSEL, RAGWORT
accessdate = 2008-02-09
author = Purdue University, School of Veterinary Medicine
authorlink = Purdue University
format = HTML
work = Animal Disease Diagnostic Lab, Plants by Type
publisher = Purdue University]
* _de. Greiskraut, Kreuzkraut
* _et. Ristirohi
* _fi. Villakko
* _fr. Séneçon
* _he. סביון
* _hy. Հալևորուկ
* _it. Senecione
* _lt. Žilė
* _lv. Krustaine
* _nl. Kruiskruid
* _pl. Starzec
* _cz. Starček
* _ru. Крестовник
* _sv. Korsörter
* _zh. 千里光属cite web
url = http://ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameCache=Senecio&PTRefFk=7000000
title = Details for: "Senecio"
accessdate = 2008-01-27
author = Botanic Garden and Botanical Museum Berlin-Dahlem
authorlink = Botanical Garden in Berlin
format = HTML
work = Euro+Med PlantBase
publisher = Freie Universität Berlin ] cite web
url = http://www.efloras.org/florataxon.aspx?flora_id=3&taxon_id=130085
title = Chinese Plant Names "Senecio" L.
accessdate = 2008-02-27
author = Flora of North America
authorlink = Flora of North America
format = HTML
work = Chinese Plant Names ]

elected species

Between its own cross species breeding and the horticulturalists, "Senecio" is perhaps the largest genus in the family Asteraceae.cite book
last = Bailey
first = Liberty Hyde
title = The Standard Cyclopedia of Horticulture: A Discussion for the Amateur, and ...
url = http://books.google.com/books?id=PpQDAAAAMAAJ
format = HTML
edition = 6
year = 1917
publisher = The Macmillan Company
pages = 3639
chapter = Senecio
chapterurl = http://books.google.com/books?id=PpQDAAAAMAAJ&pg=PA3149&lpg=PA3149]

*"Senecio ampullaceus" — Texas ragwort, Texas squaw-weed, Texas groundsel, clasping-leaf groundselcite web
url = http://kyledailyphoto.blogspot.com/2007_04_01_archive.html#1746781956987590057
title = Proceed With Caution
accessdate = 2008-04-10
author = Sean Claes
date = 2007-04-16
format = HTML
work = Kyle, Texas Daily Photo]
*"Senecio angulatus" L.f. — Creeping groundsel
*"Senecio antisanae"
*"Senecio arborescens"
*"Senecio aureus" L. — Golden Ragwortcite web
url = http://www.ct-botanical-society.org/galleries/packeraaure.html
title = Golden Ragwort
accessdate = 2008-02-09
author = Connecticut Botanical Society
date = 2005-11-13
date = November 13, 2005
format = HTML
work = Connecticut Wildflowers
quote = Golden Ragwort is one of three species of ragwort in Connecticut, all with similar flowers. ]
**"Packera aurea" (L.) A. & D. Löve
*"Senecio barbertonicus" Klatt — Succulent Bush Senecio
*"Senecio battiscombei"
**"Dendrosenecio battiscombei"
*"Senecio brasiliensis" (Spreng.) Less. -- flor-das-almas
**"Cineraria brasiliensis"
*"Senecio cambrensis" — Welsh groundsel, Welsh ragwort
*"Senecio cineraria" — Dusty miller
**"Cineraria maritima"
**"Jacobaea maritima"
**"Othonna maritima"
*"Senecio congestus" (R. Br.) DC. — Marsh ragwort, Clustered marsh ragwort, Marsh fleabane
**"Cineraria palustris"
**"Othonna palustris"
**"Tephroseris palustris"
*"Senecio eboracensis" Abbott & Lowe — York groundsel
*"Senecio flaccidus" Less. -- Douglas senecio, threadleaf groundsel, threadleaf ragwort
*"Senecio gallicus" Chaix -- Southern Ragwort
*"Senecio glabellus" Poir. -- Butterweed
**"Packera glabella" (Poir) C. Jeffrey
*"Senecio glaucus" L. -- Jaffa groundsel
*"Senecio haworthii" -- woolly senecio
*"Senecio iscoensis" -- Hieron.
*"Senecio jacobaea" -- common ragwort, stinking willie, tansy ragwort; cite web
url = http://www.botanical.com/botanical/mgmh/r/ragwor02.html
title = Ragwort
author = M. Grieve
authorlink = Maud Grieve
year = 1931
format = HTML
work = A Modern Herbal
publisher = © Copyright Protected 1995-2008 Botanical.com] cite web
url = http://www.nwcb.wa.gov/weed_info/Senecio_jacobaea.html
title = Tansy Ragwort
accessdate = 2008-02-09
format = HTML
work = Written Findings of the State Noxious Weed Control Board
publisher = Washington State Department of Agriculture]
**synonymous with "Jacobaea vulgaris"
*"Senecio keniensis"
**"Dendrosenecio keniensis"
*"Senecio keniodendron" -- Giant groundsel
**"Dendrosenecio keniodendron"
*"Senecio keniophytum"
*"Senecio kleinia"
**"Kleinia neriifolia"
*"Senecio lamarckianus"
*"Senecio leucanthemifolius" Poir. -- Coastal Ragwort
*"Senecio littoralis"
*"Senecio mikanioides" -- Cape Ivy, German Ivy
**"Delairea odorata"
*"Senecio obovatus" Muhl. -- Roundleaf Ragwort
**"Packera obovata" (Muhl. ex Willd.)
*"Senecio patagonicus"
*"Senecio pulcher"
*"Senecio rowleyanus" -- String of pearls
*"Senecio squalidus" -- Oxford ragwort
*"Senecio vaginatus"
*"Senecio vernalis" -- Eastern groundsel
*"Senecio viscosus" -- sticky ragwort
*"Senecio vulgaris" -- common groundsel, old-man-in-the-spring

Formerly in "Senecio"
* "Brachyglottis greyi" (as "S. greyi")
* Florist's Cineraria, "Pericallis × hybrida" (as "S. cruentus")
* "Rugelia nudicaulis" -- Rugels ragwort

Nomina Nova

Quote box
quote = I have every day been figuring to myself the occupations of my pupil Solander, now putting his collection in order, having first arranged and numbered his plants, in parcels, according to the places where they were gathered, and then written upon each specimen its native country and appropriate number. I then fancied him throwing the whole into classes, putting aside and naming such as were already known; ranging others under known genera, with specific differences, and distinguishing by new names and definitions such as formed new genera, with their species. Thus, thought I, the world will be delighted and benefited by all these discoveries; and the foundations of true science will be strengthened, so as to endure through all generations!
source = Extract from letter written by Linnaeus to John Elliscite journal
last = Edgar
first = E.
authorlink = Department of Scientific and Industrial Research
coauthors = H. E. Connor
title = Nomina Nova III, 1977-1982
journal = New Zealand Journal of Botany
volume = 21
pages = 421–441
year = 1983
url = http://www.nzjf.org/free_issues/NZJF31_3_1986/8B94A164-BF7A-4A5B-A45B-3ACE982D0C7C.pdf
id = 0028-825X/83/2104-0421
accessdate = 2008-04-10
format = PDF]
width = 50%
align = center

"Senecio" is or was, depending on the authority cited, the genus containing the most species within the family (Asteraceae) of flowering plants that contains the most genera. The cataloging of living things started centuries ago as a science of systematic naming based on a unique description of the living thing that was being named. Throughout the centuries since then, the science of naming has had plenty of problems including the lack of enough descriptive words (many species are named after people, for instance), mix-ups in the collected samples, plants and animals which propagate themselves in ways not easily managed by a catalog which assumed such things were stagnant.cite web
url = http://carlzimmer.com/articles/index.php?subaction=showfull&id=1212035493
title = What Is A Species?
accessdate = 2008-06-29
last = Zimmer
first = Carl
authorlink = Carl Zimmer
year = 2008
month = June
format = HTML
publisher = Scientific American] There has been several attempts to rename and reorganize these things more sensibly according to the new information provided by more modern technology and with the understanding that the plant and animal kingdoms are probably not going to be stable; that is exactly in a year the same way as they are now. Meanwhile, as the science of naming catches up to technology, knowing all of the names a species has had, and has been published as, is a part of finding the information about them; no matter who the authority is. The following genera contain species which used to be considered to be in the genus "Senecio".cite journal
last =Pelser
first =Pieter B
coauthors = Nordenstam, Bertil; Kadereit, Joachim W.; Watson, Linda E.
title = An ITS phylogeny of tribe Senecioneae (Asteraceae) and a new delimitation of "Senecio" L.
journal = Taxon
url = http://www.ingentaconnect.com/content/iapt/tax/2007/00000056/00000004/art00009
volume =56
issue =4
pages =pp. 1077–14E(-1062)
publisher = International Association for Plant Taxonomy (IAPT)
month =November | year =2007
accessdate = 2008-06-29 ]

Probable synonyms:
*"Antillanthus" B. Nord.
*"Barkleyanthus" H. Rob. & Brettell
*"Brachyglottis" J. R. Forst. & G. Forst.
*"Canariothamnus" B. Nord.
*"Dauresia" B. Nord. & Pelser
*"Dendrophorbium" C. Jeffrey
*"Dendrosenecio" (Hauman ex Hedberg) B. Nord.
*"Dorobaea" Cass.
*"Dresslerothamnus" H. Rob.
*"Elekmania" B. Nord.
*"Herreranthus" B. Nord.
*"Hubertia" Bory
*"Iocenes" B. Nord.
*"Jacobaea" Mill.
*"Lasiocephalus" Willd. ex Schltdl.
*"Leonis" B. Nord.
*"Lundinia" B. Nord.
*"Mesogramma" DC.
*"Monticalia" C. Jeffrey
*"Nelsonianthus" H. Rob. & Brettell
*"Nesampelos" B. Nord., nom. inval.
*"Oldfeltia" B. Nord. & Lundin
*"Packera" Á. Löve & D. Löve
*"Pentacalia" Cass.
*"Pippenalia" McVaugh
*"Pittocaulon" H. Rob. & Brettell
*"Pojarkovia" Askerova
*"Psacaliopsis" H. Rob. & Brettell
*"Pseudogynoxys" (Greenm.) Cabrera
*"Pseudojacobaea" (Hook. f.) R. Mathur
*"Roldana" La Llave
*"Sinosenecio" B. Nord.
*"Synotis" (C. B. Clarke) C. Jeffrey & Y. L. Chen
*"Telanthophora" H. Rob. & Brettell
*"Tephroseris" (Rchb.) Rchb.
*"Zemisia" B. Nord.cite web
url = http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?11063
title = Genus: "Senecio" L.
accessdate = 2008-02-27
author = Germplasm Resources Information Network (GRIN)
authorlink = Germplasm Resources Information Network
date = 2007-05-04
format = HTML
work = Taxonomy for Plants
publisher = USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland]

References

External links

*cite web
url = http://plants.usda.gov/java/profile?symbol=SENEC
title = PLANTS Profile, "Senecio" L.
accessdate = 2008-03-06
author = Natural Resources Conservation Service (NRCS)
authorlink = Natural Resources Conservation Service
format = HTML
work = The PLANTS Database
publisher = United States Department of Agriculture
*cite web
url = http://www.ars-grin.gov/cgi-bin/npgs/html/genus.pl?11063
title = Genus: "Senecio" L.
accessdate = 2008-03-06
author = Germplasm Resources Information Network (GRIN)
authorlink = Germplasm Resources Information Network
date = 2005-10-26
format = HTML
work = Taxonomy for Plants
publisher = USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland
*cite web
url = http://www.ars-grin.gov/cgi-bin/npgs/html/splist.pl?11063
title = GRIN Species Records of "Senecio"
accessdate = 2008-03-06
author = Germplasm Resources Information Network (GRIN)
authorlink = Germplasm Resources Information Network
date = 2005-10-26
format = HTML
work = Taxonomy for Plants
publisher = USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland
* cite web
url = http://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=36084
title = "Senecio" L.
accessdate = 2008-02-23
authorlink = Integrated Taxonomic Information System
author =Integrated Taxonomic Information System Organization (ITIS)
date = 20 December 2007 16:00:49 MST
format = HTML
work = Integrated Taxonomic Information System on-line database
*cite web
url = http://ww2.bgbm.org/EuroPlusMed/PTaxonDetail.asp?NameId=122653&PTRefFk=7000000
title = Details for: "Senecio"
accessdate = 2008-03-06
author = Botanic Garden and Botanical Museum Berlin-Dahlem
authorlink = Botanical Garden in Berlin
format = HTML
work = Euro+Med PlantBase
publisher = Freie Universität Berlin
*cite web
url = http://mobot.mobot.org/cgi-bin/search_vast?onda=N40035317
title = Seneco L.
accessdate = 2008-03-27
author = Missouri Botanical Garden
authorlink = Missouri Botanical Garden
year = 1753
format = HTML
work = [http://www.tropicos.org/ Tropicos Nomenclatural Data Base]
*cite web
url = http://193.62.154.38/cgi-bin/nph-readbtree.pl/feout?FAMILY_XREF=&GENUS_XREF=Senecio
title = Flora Europaea Search Results
accessdate = 2008-03-06
author = Royal Botanic Garden Edinburgh
authorlink = Royal Botanic Garden Edinburgh
format = HTML
*cite web
url = http://www.flora.huji.ac.il/browse.asp?action=freesearch&q=Senecio
title = Search Results For 'senecio'
accessdate = 2008-03-06
author = Flora of Israel Online
authorlink = Hebrew University of Jerusalem
format = HTML
publisher = Hebrew University of Jerusalem
*cite web
url = http://www.botanic.co.il/a/holiday/IMGMAP/PlantsNames.HTML#S
title = LIST OF ALL PLANTS NAMES -WITH PHOTO S
accessdate = 2008-03-06
author = Jerusalem Botanical Gardens
authorlink = Jerusalem Botanical Gardens
format = HTML
*cite journal
last =Flora of North America
authorlink =Flora of North America
title = Family List: 215. "Senecio" Linnaeus
volume =20
pages =540,541, 542, 543, 544, 545, 570, 615
url =http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=130085
accessdate = 2008-03-06
*cite web
url = http://www.ville-ge.ch/cjb/bd/africa/genre.php?langue=an&id=3152
title = "Senecio" L.
accessdate = 2008-03-06
author = Cyrille Chatelain, Laurent Gautier, Raoul Palese
format = HTML
work = African Flowering Plants Database
publisher = Conservatoire et Jardin botaniques de la Ville de Genève
*cite web
url = http://www.darwin.edu.ar/Publicaciones/CatalogoVascII/asteraceae.zip
title = Asteraceae
accessdate = 2008-03-06
author = Instituto Darwinion
format = PDF
work = Catálogo de las Plantas Vasculares de la República Argentina. II
publisher = Universidad de Buenos Aires
pages = 255
language = Spanish
*cite web
url = http://florabase.calm.wa.gov.au/search/quick?q=Senecio
title = search term: "Senecio"
accessdate = 2008-03-06
author =Helen Coleman, FloraBase: Flora of Western Australia
authorlink = Western Australian Herbarium
date = 1997-06-18
format = HTML
work = Flora Descriptions
publisher = Government of Western Australia
*cite web
url = http://floraseries.landcareresearch.co.nz/pages/Taxon.aspx?id=_052a7e9e-a00f-4666-a5a0-9f792748eb41&fileName=Flora%204.xml
title = Senecio L.
accessdate = 2008-04-01
author = Landcare Research
format = HTML
work = Flora of New Zealand: Taxa
publisher = Landcare Research Allan Herbarium and New Zealand Plant Names Database
*cite web
url = http://www.calflora.org/cgi-bin/specieslist.cgi?where-genus=Senecio&orderby=taxon&ttime=1202537565
title = Search for:genus:Senecio
accessdate = 2008-02-09
format = HTML
work = Species Information
publisher = Calflora - 1700 Shattuck Ave. #198, Berkeley, CA 94709
*cite journal
last =Flora of Chile
authorlink =Flora of North America
title = Volume 4 Asteraceae "Senecio" L.
volume =4
url =http://www.efloras.org/web_page.aspx?flora_id=60&page_id=1094
accessdate = 2008-03-06
*cite web
url = http://www.plantatlas.usf.edu/result.asp?search=Senecio&search_by=Sci_Name&qualifier=Any&EPPC=ANY&synonyms=include&native=ANY&NWI=ANY&W

title = Search Results For Search String: Senecio
accessdate = 2008-03-06
author = Dr. Richard Wunderlin or Dr. Bruce Hansen
authorlink = University of South Florida
year = 2006
format = HTML
work = [http://www.plantatlas.usf.edu/default.asp Atlas of Florida Vascular Plants]
publisher = Institute for Systematic Botany
*cite web
url = http://www.conabio.gob.mx/malezasdemexico/asteraceae/
title = Asteraceae
accessdate = 2008-03-06
format = HTML
work = Primera página de la especie
publisher = Malezas de México
language = Spanish
*cite web
url = http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&search=yes&namesearch=Senecio&showsyn=OK&dist=
title = Search terms: "Senecio"
accessdate = 2008-03-06
author = PlantNET - The Plant Information Network System of Botanic Gardens Trust
authorlink =Royal Botanic Gardens, Sydney
format = HTML
publisher = [http://plantnet.rbgsyd.nsw.gov.au Botanic Gardens Trust]
*cite web
url = http://wisplants.uwsp.edu/scripts/photolink.asp?SpCode=SEN-
title = "Senecio" L.
accessdate = 2008-03-06
author = University of Wisconsin - Stevens Point
authorlink = University of Wisconsin-Stevens Point
format = HTML
publisher = Robert W. Freckmann Herbarium
*cite web
url = http://www.rhs.org.uk/rhsplantfinder/plantfinder2.asp?crit=Senecio
title = RHS PLANT FINDER
accessdate = 2008-03-06
author = Royal Horticultural Society
authorlink = Royal Horticultural Society
format = HTML
*