Plate 1 figs. a–h · 8 separate observations
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 |
|---|---|---|
| Mexico Northeast | MXE | NORTHERN AMERICA |
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 227 observations
| Condition | 5th percentile | Median | 95th percentile |
|---|---|---|---|
| Coldest month, mean daily low | 4.8 °C | 8.9 °C | 11.6 °C |
| Warmest month, mean daily high | 25.7 °C | 29.9 °C | 31.4 °C |
| Annual rainfall | 354 mm | 504 mm | 673 mm |
| Rainfall in the driest quarter | 34 mm | 41 mm | 57 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 227 research-grade observations of Astrophytum myriostigma 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 38 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.
- Astrophytum columnare (K.Schum.) Sadovsky & Schütz
- Astrophytum depressum Lawr.
- Astrophytum mirum Halda & Panar.
- Astrophytum myriostigma subsp. potosinum (H.Moeller) K.Kayser
- Astrophytum myriostigma subsp. quadricostatum (H.Moeller) K.Kayser
- Astrophytum myriostigma subsp. tamaulipense K.Kayser
- Astrophytum myriostigma subsp. tulense K.Kayser
- Astrophytum myriostigma subvar. nudum (Rud.Mey.) Backeb.
- Astrophytum myriostigma subvar. tulense (K.Kayser) Backeb.
- Astrophytum myriostigma var. cereiforme Frič
- Astrophytum myriostigma var. columnare (K.Schum.) Frič
- Astrophytum myriostigma var. grandiflorum Frič
- Astrophytum myriostigma var. minimiflorum Frič
- Astrophytum myriostigma var. nudicarpa Frič
- Astrophytum myriostigma var. nudum (Rud.Mey.) Frič
- Astrophytum myriostigma var. potosinum (H.Moeller) Kreuz.
- Astrophytum myriostigma var. potosinum (H.Moeller) K.Kayser
- Astrophytum myriostigma var. quadricostatum (H.Moeller) Baum
- Astrophytum myriostigma var. quadricostatum (H.Moeller) Borg
- Astrophytum myriostigma var. strongylogonum Backeb.
- Astrophytum myriostigma var. tamaulipense (K.Kayser) W.T.Marshall
- Astrophytum myriostigma var. tulense (K.Kayser) Borg
- Astrophytum myriostigma var. verum W.T.Marshall
- Astrophytum prismaticum Lem.
and 14 more.
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.