Plate 1 figs. a–h · 5 observations
This species has been photographed under an open licence only 5 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.
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 1 botanical country
| Region | TDWG code | Continent |
|---|---|---|
| Cape Provinces | CPP | AFRICA |
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.
Where it actually grows measured, from 139 observations
| Condition | 5th percentile | Median | 95th percentile |
|---|---|---|---|
| Coldest month, mean daily low | 4.3 °C | 7.9 °C | 12.5 °C |
| Warmest month, mean daily high | 19.7 °C | 25.6 °C | 29.4 °C |
| Annual rainfall | 415 mm | 824 mm | 2,469 mm |
| Rainfall in the driest quarter | 40 mm | 85 mm | 234 mm |
It is barely found anywhere that freezes. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 139 research-grade observations of Euphorbia genistoides that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.
This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.
Also published as 24 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.
- Euphorbia artifolia N.E.Br.
- Euphorbia corifolia Lam.
- Euphorbia dilatata E.Mey.
- Euphorbia ericoides Lam.
- Euphorbia erythrina Link
- Euphorbia erythrina var. burchellii Boiss.
- Euphorbia erythrina var. meyeri N.E.Br.
- Euphorbia foliosa N.E.Br.
- Euphorbia genistoides var. corifolia (Lam.) N.E.Br.
- Euphorbia genistoides var. leiocarpa Boiss.
- Euphorbia genistoides var. major Boiss.
- Euphorbia genistoides var. puberula N.E.Br.
- Euphorbia linifolia Burm.f.
- Euphorbia meyeri Boiss.
- Euphorbia taxifolia Burm.f.
- Galarhoeus genistoides (P.J.Bergius) Haw.
- Keraselma corifolium (Lam.) Raf.
- Keraselma genistoides (P.J.Bergius) Raf.
- Tithymalus apiculatus Klotzsch & Garcke
- Tithymalus confertus Klotzsch & Garcke
- Tithymalus erythrinus (Link) Klotzsch & Garcke
- Tithymalus foliosus Klotzsch & Garcke
- Tithymalus genistoides (P.J.Bergius) Klotzsch & Garcke
- Tithymalus revolutus Klotzsch & Garcke
Sourcesevery claim on this page
- World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
- iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
- 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.