Senecio is a
genusIn biology, a genus is a taxonomic unit used in the classification of living and fossil organisms. The term comes from Latin genus "descent, family, type, gender" , cognate with – genos, "race, stock, kin" ..In addition, genus is a taxonomic rank in the hierarchy In biology, a genus (plural:...
of the daisy
familyIn biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus...
(
AsteraceaeThe family Asteraceae or Compositae is the second largest family of flowering plants, in terms of number of species....
) that includes
ragworts and
groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters.
Senecio is one of the largest genera of
flowering plantThe flowering plants or angiosperms are the most diverse group of land plants. The flowering plants and the gymnosperms are the only extant groups of seed plants...
s, and despite the separation of many
speciesIn biology, a species is:* a taxonomic rank or* a unit at that rank ....
into other genera it still contains over 1000 species of varied form, including leaf, stem and tuber succulents, annuals, perennials, aquatics, climbers, shrubs and small trees. Some species produce natural
biocideA biocide is a chemical substance capable of killing living organisms, usually in a selective way. Biocides are commonly used in medicine, agriculture, forestry, and in industry where they prevent the fouling of water and oil pipelines...
s (especially
alkaloidAlkaloids are naturally occurring chemical compounds containing basic nitrogen atoms. The name derives from the word alkaline and was used to describe any nitrogen-containing base. Alkaloids are produced by a large variety of organisms, including bacteria, fungi, plants, and animals and are part of...
s) to deter or even kill animals that would eat them.
Senecio species are used as food plants by the
larvaA larva is a young form of animal with indirect development, going through or undergoing metamorphosis ....
e of some
LepidopteraLepidoptera is an order of insects that includes moths and butterflies. It is one of the most speciose orders in the class Insecta, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...
species — see list of Lepidoptera that feed on Senecio.
Selected species
- Senecio ampullaceus
Senecio ampullaceus also known as Texas ragwort, Texas squaw-weed, Texas groundsel,and Texas butterweedis a species of Senecio in the family Asteraceae and gets its Latin name ampullaceus from its flask shaped flower-head...
— Texas ragwort, Texas squaw-weed, Texas groundsel, clasping-leaf groundsel
- Senecio angulatus
Senecio angulatus also known as Creeping groundseland sometimes as Cape ivyis a climbing succulent perennial from the family Asteraceae of the genus Senecio; a native of South Africaan alien in Australia,a problem weed in New Zealand,...
L.f. — Creeping groundsel
- Senecio antisanae
Senecio antisanae is a species of Senecio in the Asteraceae family found only in Ecuador.Its natural habitat is subtropical or tropical moist montanes. It is threatened by habitat loss....
- Senecio arborescens
Senecio arborescens should be a species of the genus Senecio in the Asteraceae family, but the available information about it mostly conflicting and old....
- Senecio aureus
Golden Ragwort is a perennial flower in family Asteraceae. It is also known as Life Root, Squaw Weed, Golden Sececio, ragwort, uncum root, waw weed, uncum, false valerian, cough weed, female regulator, cocash weed, ragweed, staggerwort, and St...
L. — Golden Ragwort
- Packera aurea (L.) A. & D. Löve
- Senecio barbertonicus
Senecio barbertonicus Klatt. common names of Barberton Groundselor Succulent Bush Seneciois an evergreen succulent shrub of the family Asteraceae and genus Senecio, native to Southern Africa, named after one of its native localities Barberton and is now also being cultivated elsewhere for its...
Klatt — Succulent Bush Senecio
- Senecio battiscombei
- Dendrosenecio battiscombei
- Senecio brasiliensis
Senecio brasiliensis or by its common name flor-das-almas, a perennial species of Senecio genus and the family Asteraceae grows as a native in the fields and meadows of central South America.-Description:S...
(Spreng.) Less. — flor-das-almas
- Senecio cambrensis
Senecio cambrensis is a flowering plant of the family Asteraceae. It is endemic to the United Kingdom and currently known only from North Wales...
— Welsh groundsel, Welsh ragwort
- Senecio cineraria
Senecio cineraria also known as Dusty miller is a species of Senecio from the family Asteraceae, a native perennial of the Mediterranean and widely cultivated as an annual for its silver, felt-like leaves....
— Dusty miller
- Cineraria maritima
- Jacobaea maritima
- Othonna maritima
- Senecio congestus
Senecio congestus, also known by its common names Swamp Ragwort, Northern Swamp Groundsel, Marsh Fleabane, Marsh Fleawort, Clustered Marsh Ragwort and Mastodon Flower, a herbaceous member of the Asteraceae family and the Senecio genus, can be seen most easily when its bright yellow umbel flowers...
(R. Br.) DC. — Marsh ragwort, Clustered marsh ragwort, Marsh fleabane
- Cineraria palustris
- Othonna palustris
- Tephroseris palustris
- Senecio eboracensis
Senecio eboracensis, the York groundsel or York radiate groundsel, is a self-pollinating hybrid species of ragwortand one of only six new plants to be discovered in either the United Kingdom or North America in the last 100 years....
Abbott & Lowe — York groundsel
- Senecio flaccidus
Senecio flaccidus, formerly recorded as Senecio douglasii member of the daisy family and genus Senecio also known as Threadleaf Groundsel Senecio flaccidus, formerly recorded as Senecio douglasii (in honor of the botanist David Douglas) member of the daisy family and genus Senecio also known as...
Less. — Douglas senecio, threadleaf groundsel, threadleaf ragwort
- Senecio gallicus
Senecio gallicus, an annual plant of the Senecio genus and a member of the Asteraceae family is also one of those species who colonizes in isolated habitats where the environmental conditions could qualify as being difficult -- widespread across southern France and the Iberian Peninsula in deserts...
Chaix — Southern Ragwort
- Senecio glabellus Poir. — Butterweed
- Packera glabella (Poir) C. Jeffrey
- Senecio glaucus
Senecio glaucus is an annual member of the Asteraceae and species of the genus Senecio that grows in the desert-Distribution:Found in sandy soils of coastal plains, strands, and steppes.Native...
L. — Jaffa groundsel
- Senecio haworthii
Senecio haworthii also known as Woolly senecio is a perennial dwarf shrub of the Senecio genus that grows in South Africa usually between the altitudes of 900 to 1200 meters....
— woolly senecio
- Senecio iscoensis
Senecio iscoensis or Aetheolaena senecioidesis is a species of Senecio in the Asteraceae family.It is found only in Ecuador.Its natural habitat is subtropical or tropical dry shrubland.It is threatened by habitat loss....
— Hieron.
- Senecio jacobaea — common ragwort, stinking willie, tansy ragwort;
- synonymous with Jacobaea vulgaris
- Senecio keniensis
- Senecio keniodendron — Giant groundsel
- Dendrosenecio keniodendron
- Senecio keniophytum
Atop of Mount Kenya Senecio keniophytum is one of the endemic groundsel found at high altitudes in Kenya, such as the Afro-alpine zone of Mount Kenya, but not one of the giant Dendrosenecio that also live there.-Description:...
- Senecio kleinia
Kleinia neriifolia also known as Verode or Berode and previously known as Senecio kleinia is one of flowering plant species of the genus Kleinia and in the daisy family . It is native endemic to the Canary Islands and it used to be in the genus Senecio-Description:One of the succulentSenecio, S...
- Senecio lamarckianus
Senecio lamarckianus, the Bois De Chèvre , is a species of flowering plant in the Asteraceae family and a member of the genus Senecio. It is endemic to the island Mauritius and is threatened by habitat loss.S...
- Senecio leucanthemifolius
-Distribution:Native-Distribution:Native-Distribution:Native:Palearctic:::Northern Africa: Algeria, Libya, Morocco, Tunisia::Western Asia: Israel, Jordan, Lebanon, Syria, Turkey - Anatolia::Caucasus: Armenia, Azerbaijan, Georgia...
Poir. — Coastal Ragwort
- Senecio littoralis
Senecio littoralis, the Woolly Ragwort, is a species of flowering plant in the Asteraceae family.It is endemic to the Falkland Islands....
- Senecio mikanioides — Cape Ivy, German Ivy
- Senecio obovatus Muhl. — Roundleaf Ragwort
- Packera obovata (Muhl. ex Willd.)
- Senecio patagonicus
- Senecio pulcher
Senecio pulcher is an ornamental plant native to the wet valleys & slopes and flooded rockyhabitats in Argentina, Brazil, and Uruguay. Cited in Flora Brasiliensisby Carl Friedrich Philipp von Martius. After Dusty miller , S...
- Senecio rowleyanus
Senecio rowleyanus, commonly called string-of-pearls or string-of-beads, is a flowering plant in the family Asteraceae. It is native to southwest Africa. S. rowleyanus grows long, trailing stems of spherical leaves. The flowers are pale and brushlike. It is cultivated indoors as an ornamental...
— String of pearls
- Senecio sanmarcosensis
- Senecio squalidus
Oxford Ragwort , a Ragwort from the daisy family Asteraceae, yellow-flowered herbaceous plant, native to mountainous, rocky or volcanic areas, has managed to find other homes on man-made and natural piles of rocks, war-ruined neighborhoods and even on stone walls that resemble their well drained...
— Oxford ragwort
- Senecio vaginatus
Senecio vaginatus, the Smooth Ragwort, is a species of flowering plant in the Asteraceae family.It is endemic to the Falkland Islands.Its natural habitats are temperate shrubland, rocky areas, and rocky shores.It is threatened by habitat loss....
- Senecio vernalis
One of the European species of Senecio Senecio vernalis is an annual that is also known as Eastern groundsel. While it has been long classified as Sencio vernalis, this species has more recently been identified as a subspecies of Senecio leucanthemifolius Poir...
— Eastern groundsel
- Senecio viscosus
Senecio viscosus, commonly known as Sticky Groundsel, is a herbaceous annual plant of the genus Senecio....
— sticky ragwort
- Senecio vulgaris — common groundsel, old-man-in-the-spring
Formerly in Senecio
- Brachyglottis greyi
Brachyglottis greyi, also called Senecio greyi, with the common name daisy bushand unfortunately no Maori name,is a member of the large Asteraceae family and belongs to the genus Brachyglottisor the genus Senecio...
(as S. greyi)
- Florist's Cineraria
The Florist's Cineraria is a flowering plant in the family Asteraceae. It originated as a hybrid between Pericallis cruenta and P. lanata, both natives of the Canary Islands. The hybrid was first developed in the British royal gardens in 1777...
, Pericallis × hybrida (as S. cruentus)
- Rugelia nudicaulis
Rugelia nudicaulis, or Rugels ragwort, a member of the genus Rugelia which blooms in summer, is a wildflower found only at higher elevations in the Great Smoky Mountains. It is a rare species in Tennessee. It was first placed in the genus Senecio, then moved to Cacalia and finally placed in a...
— Rugels ragwort
Synonyms
The following genera contain species that are or have been included within
Senecio.
Probable synonyms:
- Antillanthus
Antillanthus is a genus of the tribe Senecioneae in the family Asteraceae. Many members of this genus were previously listed as Pentacalia and Senecio.-Species:*Antillanthus acunae B.Nord.**Pentacalia acunae Borhidi...
B. Nord.
- Barkleyanthus
Barkleyanthus is a genus of flowering plants in the daisy family, Asteraceae....
H. Rob. & Brettell
- Brachyglottis
Brachyglottis is a genus of flowering plant in the Asteraceae family; a genus which has existed since November 29, 1775when Johann Reinhold Forster & Georg Forster created the genus with this name from the Greek words brachus meaning short...
J. R. Forst. & G. Forst.
- Canariothamnus B. Nord.
- Dauresia B. Nord. & Pelser
- Dendrophorbium
Dendrophorbium is a genus of flowering plant in the Asteraceae family.It contains the following species:* Dendrophorbium amplexicaule* Dendrophorbium angelense* Dendrophorbium balsapampae* Dendrophorbium dielsii...
C. Jeffrey
- Dendrosenecio
Dendrosenecio is a genus of flowering plants belonging to the family Asteraceae. It is a segregate of Senecio, in which it formed the subgenus Dendrosenecio...
(Hauman ex Hedberg) B. Nord. - Giant groundsels
- Dorobaea
Dorobaea is a genus of flowering plants in the daisy family, Asteraceae....
Cass.
- Dresslerothamnus
Dresslerothamnus is a genus of flowering plants in the daisy family....
H. Rob.
- Elekmania
Elekmania is a genus of the tribe Senecioneae and the family Asteraceae. Most if not all of its members used to be placed in Senecio....
B. Nord.
- Herreranthus B. Nord.
- Hubertia
Hubertia is a genus of flowering plants in the daisy family....
Bory
- Iocenes
Iocenes is a genus of flowering plants in the daisy family....
B. Nord.
- Jacobaea
Jacobaea is a genus of the tribe Senecioneae and the family Asteraceae. Most if not all of its members used to be Senecio.-Species:*Jacobaea abrotanifolia*Jacobaea adonidifolia Loisel.*Jacobaea alpina*Jacobaea ambigua...
Mill.
- Lasiocephalus
Lasiocephalus is a genus of flowering plants in the daisy family, Asteraceae....
Willd. ex Schltdl.
- Leonis B. Nord.
- Lundinia B. Nord.
- Mesogramma DC.
- Monticalia
Monticalia is a genus of flowering plant in the Asteraceae family.It contains the following species:* Monticalia angustifolia* Monticalia befarioides* Monticalia microdon* Monticalia myrsinites* Monticalia rosmarinifolia...
C. Jeffrey
- Nelsonianthus
Nelsonianthus is a genus of flowering plants in the daisy family....
H. Rob. & Brettell
- Nesampelos B. Nord., nom. inval.
- Oldfeltia B. Nord. & Lundin
- Packera
Packera is a genus of about 64 species of plants in the composite family, Asteraceae. Its members were previously included in the genus Senecio , but were divided out based on chromosome numbers, a variety of morphological characters, and molecular phylogeny.-Species:*Packera anonyma W.A. Weber & A...
Á. Löve & D. Löve
- Pentacalia
Pentacalia is a genus of flowering plant in the Asteraceae family. About 34 members of this genus appear to be located in the South American county Ecuador, where they are threatened by habitat loss...
Cass.
- Pippenalia
Pippenalia is a genus of flowering plants in the daisy family....
McVaugh
- Pittocaulon
Pittocaulon is a genus of the tribe Senecioneae and the family Asteraceae. Most if not all of its members used to be Senecio.The five species of this genus have been described as "strange shrubs and small trees with broomstick-like branches". All five species are native to the dry parts of...
H. Rob. & Brettell
- Pojarkovia
Pojarkovia is a genus of flowering plants in the daisy family, Asteraceae....
Askerova
- Psacaliopsis
Psacaliopsis is a genus of flowering plants in the daisy family....
H. Rob. & Brettell
- Pseudogynoxys
Pseudogynoxys is a genus of flowering plant in the Asteraceae family.It contains the following species:* Pseudogynoxys benthamii Cabrera* Pseudogynoxys chenopodioides Cabrera** Senecio chenopodioides Kunth...
(Greenm.) Cabrera
- Pseudojacobaea (Hook. f.) R. Mathur
- Roldana
Roldana also known as groundsel is a genus of large herbs or subshrubs from the tribe Senecioneae and the family Asteraceae. Most if not all of its members used to be Senecio. There are approximately 50 species which are native to Southwest United States, Mexico and Central America and...
La Llave
- Sinosenecio
Sinosenecio is a genus of flowering plants in the daisy family, Asteraceae....
B. Nord.
- Synotis
Synotis is a genus of flowering plants in the daisy family, Asteraceae....
(C. B. Clarke) C. Jeffrey & Y. L. Chen
- Telanthophora
Telanthophora is a genus of flowering plants in the daisy family....
H. Rob. & Brettell
- Tephroseris
Tephroseris is a genus of flowering plants in the daisy family, Asteraceae....
(Rchb.) Rchb.
- Zemisia B. Nord.