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 18 botanical countries
| Region | TDWG code | Continent |
|---|---|---|
| Algeria | ALG | AFRICA |
| Chad | CHA | |
| Egypt | EGY | |
| Libya | LBY | |
| Mali | MLI | |
| Mauritania | MTN | |
| Morocco | MOR | |
| Niger | NGR | |
| Sudan-South Sudan | SUD | |
| Western Sahara | WSA | |
| Gulf States | GST | ASIA-TEMPERATE |
| Iran | IRN | |
| Kuwait | KUW | |
| Lebanon-Syria | LBS | |
| Saudi Arabia | SAU | |
| Sinai | SIN | |
| India | IND | ASIA-TROPICAL |
| Pakistan | PAK |
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 151 observations
| Condition | 5th percentile | Median | 95th percentile |
|---|---|---|---|
| Coldest month, mean daily low | 2.9 °C | 4.3 °C | 10.5 °C |
| Warmest month, mean daily high | 36.2 °C | 40.9 °C | 42.7 °C |
| Annual rainfall | 14 mm | 68 mm | 85 mm |
| Rainfall in the driest quarter | 0 mm | 6 mm | 8 mm |
It is found where winters are cool but frost is light or absent. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 151 research-grade observations of Hyoscyamus muticus 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 7 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.
- Hyoscyamus betifolius Lam.
- Hyoscyamus boveanus (Dunal) Asch. & Schweinf.
- Hyoscyamus datora Forssk.
- Hyoscyamus falezlez Coss.
- Scopolia boveana Dunal
- Scopolia datora (Forssk.) Dunal
- Scopolia mutica (L.) Dunal
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.
- Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
- 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.