# Coryphantha robustispina scheeri

> subspecies of plant

**Wikidata**: [Q49546407](https://www.wikidata.org/wiki/Q49546407)  
**Source**: https://4ort.xyz/entity/coryphantha-robustispina-scheeri


## References

1. Phylogenetic relationships in Coryphantha and implications on Pelecyphora and Escobaria (Cacteae, Cactoideae, Cactaceae)
2. Integrated Taxonomic Information System
3. Global Biodiversity Information Facility
4. Tropicos
5. International Plant Names Index
6. The Plant List 1.1
7. GRIN Taxonomy for Plants
8. United States Department of Agriculture Plants Database
9. A dataset on catalogue of alien plants in China
10. Plants of the World Online
11. World Flora Online
12. Native Plants Database
13. CalPhotos