Senecio arenariusThunb.

WFO wfo-0000080642 Accepted WFO 2026-06 8 photographs CC0 / CC BY-SA

Plate 1 figs. a–h · 8 separate observations

Senecio arenarius, photographed by Tony Rebelo
fig. a Tony Rebelo, CC BY-SA 4.0 / 2021-11-23 / obs. 171859125
Senecio arenarius, photographed by Tim Kirsten
fig. b Tim Kirsten, CC0 1.0 / obs. 162853743
Senecio arenarius, photographed by Tony Rebelo
fig. c Tony Rebelo, CC BY-SA 4.0 / obs. 161746471
Senecio arenarius, photographed by Tony Rebelo
fig. d Tony Rebelo, CC BY-SA 4.0 / obs. 161746725
Senecio arenarius, photographed by Tony Rebelo
fig. e Tony Rebelo, CC BY-SA 4.0 / obs. 177112256
Senecio arenarius, photographed by Tony Rebelo
fig. f Tony Rebelo, CC BY-SA 4.0 / obs. 177112383
Senecio arenarius, photographed by Tony Rebelo
fig. g Tony Rebelo, CC BY-SA 4.0 / obs. 177113147
Senecio arenarius, photographed by Tony Rebelo
fig. h Tony Rebelo, CC BY-SA 4.0 / obs. 177118678

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Native range 4 botanical countries

Regions where Senecio arenarius is native: Botswana, Cape Provinces, Namibia, Northern Provinces BotswanaCape ProvincesNamibiaNorthern Provinces
Native distribution of Senecio arenarius, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Botswana BOT AFRICA
Cape Provinces CPP
Namibia NAM
Northern Provinces TVL

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Flowering 99 in flower of 101 examined

Peak flowering in Oct. Each bar is the share of Senecio arenarius observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 99 of 101 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 9 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

Also published as 4 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Senecio cakilefolius var. hispidulus Thell.
  • Senecio elegans Thunb.
  • Senecio myrrhifolius Thunb.
  • Senecio volckameri Sch.Bip.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
  3. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

We publish what we can source and we say so when we cannot. This page has no care advice and no toxicity claim, because we do not yet have those from a source we can cite.