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Senecio squalidus; photograph (c) Daniel Cahen, some rights reserved (CC BY) CC BY(c) Daniel Cahen, some rights reserved (CC BY) · observed growing wild · 2026-09-19

Senecio squalidus L.

Oxford ragwort; Oxford groundsel

Asteraceae

No habitat climate
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Senecio squalidus, photograph (c) Jose Gutierrez Higa, some rights reserved (CC BY)Senecio squalidus, photograph author not stated, no rights reservedSenecio squalidus, photograph (c) guywallbanks, some rights reserved (CC BY)Senecio squalidus, photograph author not stated, no rights reservedSenecio squalidus, photograph author not stated, no rights reservedSenecio squalidus, photograph (c) Daniel Cahen, some rights reserved (CC BY) 62 photographs ›

Summary

Senecio squalidus, known as Oxford ragwort, is a flowering plant in the daisy family Asteraceae. It is a yellow-flowered herbaceous plant, native to mountainous, rocky or volcanic areas, that has managed to find other homes on man-made and natural piles of rocks, war-ruined neighborhoods and dry-stone walls. These habitats resemble its well drained natural rocky homeland. The plants have spread via the wind, rail and the activities of botanists. More on Wikipedia ›

Quoted from Wikipedia, "Senecio squalidus", CC BY-SA 4.0.

About the genus · Senecio

Senecio is a genus of flowering plants in the daisy family (Asteraceae) that includes groundsels and some ragworts. Variously circumscribed taxonomically, the genus Senecio is one of the largest genera of flowering plants. Plants of the World Online currently accepts 1482 species.

Quoted from Wikipedia, "Senecio", CC BY-SA 4.0.

Cultivation

Nothing derived: no habitat climate for this species.

Climate across the habitat

No habitat climate can be derived: Native range not verified: no WCVP distribution with native status for this name, so records cannot be told from cultivation and no habitat climate is derived. 18 of the 1153 in-range records are placed to worse than 10 km, or to no stated accuracy and fewer than three decimals or by something other than a person's observation, and cannot place a climate cell, though they count for the map and its marker.

Natural habitat

No native range: WCVP lists no region where it is native.
Openly licensed records, not tested against the stated range, framed on where they fall.
NativeWCVP lists no region where it is native; the regions it does list are named here. · introduced: Denmark, Finland, Great Britain, Ireland, Norway, Sweden, Belgium, Netherlands, France, Nova Scotia, California · regions are the level-3 units of the World Geographical Scheme for Recording Plant Distributions, as Kew's World Checklist records ranges, some under historical names such as Yugoslavia or Czechoslovakia (how).
Kew's description“annual or perennial” · “temperate” · quoted from WCVP, RBG Kew (CC BY 4.0); not derived here
Evidence usedNo verified native range for this name: WCVP has no entry with native status, and a checklist that only reports presence cannot tell a wild record from a garden one. The map shows 216 openly licensed records of 1153 untested against any range; no map marker or climate is derived from them, and no sheet is built from them. 18 in-range records are placed to worse than 10 km, or with no stated accuracy (admitted only as a person's observation to three decimals), and stay on the map but off the climate.

Photographs

Senecio squalidus, photograph 1did not loadSenecio squalidus, photograph 2did not loadSenecio squalidus, photograph 3did not loadSenecio squalidus, photograph 4did not loadSenecio squalidus, photograph 5did not loadSenecio squalidus, photograph 6did not load

Photographs: (c) Jose Gutierrez Higa, some rights reserved (CC BY); author not stated, no rights reserved · CC0 (3); (c) guywallbanks, some rights reserved (CC BY); (c) Daniel Cahen, some rights reserved (CC BY).

Other Senecio 118 in the reference

Senecio achilleifolius Senecio achilleifolius Redstem Ragwort Photo: CC BY-SA, Tony RebeloSenecio altissimus Senecio altissimus Asteraceae Photo: CC BY, Connor Connolly-MoylsSenecio ampullaceus Senecio ampullaceus Texas ragwort Photo: CC BY, Holly Bonorden JentschSenecio angulatus Senecio angulatus Cape ivy Photo: CC BY, zebedeugalinhaSenecio antandroi Senecio antandroi Asteraceae Photo: CC BY, Pieter PelserSenecio arenarius Senecio arenarius Asteraceae Photo: CC BY, Cricket RaspetSenecio argyreus Senecio argyreus Asteraceae Photo: CC BY, Todd BolandSenecio atratus Senecio atratus Tall blacktip ragwort Photo: CC0, author not stated Senecio baccharidifolius Asteraceae Senecio behrianus Asteraceae Senecio bigelovii Senecio bigelovii Nodding ragwort Photo: CC0, author not statedSenecio bipinnatisectus Senecio bipinnatisectus Australian fireweed Photo: CC BY, William Harland all 119 ›

Names & registers

Also known as Cineraria incisa; Senecio squalidus var. squalidus. (GBIF Backbone)

Kew accepts as species of their own Senecio glaber: older names in GBIF's record of this species that Kew's World Checklist accepts as other species. (WCVP, RBG Kew, file of 2026-06-04)

GBIFPOWOIPNIWFOWikidataWikipediaiNaturalist

The record

Family
Asteraceae
Described by
L.
Native to
not verified
Records
1153 georeferenced · 216 open · range not tested

Every figure here is derived from public data by a stated rule and names its source; nothing about this species is written for its page by a person or by AI, apart from the marked, credited quotations. How →

Where this page came from built 2026-10-22
GBIF species record gbif.species answeredasked 2026-10-22
GBIF synonyms gbif.synonyms answeredasked 2026-10-22
GBIF common names gbif.vernacular answeredasked 2026-10-22names fetched 2026-10-22
WCVP native range wcvp.distribution answeredas of 2026-06-04Kew's entry lists no native region, only 11 where it is introduced
GBIF occurrence records gbif.occurrences answeredas of 2026-10-21GBIF occurrence download https://doi.org/10.15468/dl.hbdw64, of 2026-10-21; 32 records within 1 km of a botanic garden, herbarium or zoo left out (16 at a botanic garden or arboretum, 2 at a herbarium, 14 at a zoo; Wikidata's list)
Habitat climate climate nothing to reportasked 2026-10-22native range not verified: no WCVP distribution with native status for this name, so records cannot be told from cultivation and no habitat climate is derived
Wikidata wikidata answeredasked 2026-10-22
Wikipedia wikipedia answeredasked 2026-10-22
iNaturalist photographs, wild inat.photos.wild answeredasked 2026-10-22from iNaturalist's open data of 2026-09-27: research-grade observations with an open-licence photograph, the 24 whose photographs iNaturalist received last (the open data holds no votes); filled 2026-10-22
iNaturalist photographs, cultivated inat.photos.cultivated not asked
GBIF media gbif.media answeredasked 2026-10-22
OpenAlex papers openalex not askednot yet asked for this reference; a later fill takes the papers from OpenAlex's snapshot

Every source is recorded as having answered, reported nothing, refused, failed, not been asked, or answered twice where one answer is taken (“not taken: two items answered”), and, for a source asked when this page was built, when: the figures are as the source held them that day; a source read from a file (Kew's World Checklist, a GBIF download) says "as of" the file's day instead; a row carried from an earlier build of the page names that build instead. Only “nothing to report” is ever shown as an absence. Records came from 59 datasets via GBIF.org; each carries its own licence.

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