External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:39927-2
- Publication
- Botanical Magazine; or, Flower-Garden Displayed ... London
- Collation
- 38: t. 1557
- Family as entered in IPNI
- Cactaceae
Links
- Nomenclatural link
- Cactus nigricans Haw., Misc. Nat. 5: 187 (1803).
- Same citation as
- Cactus tuna var. nigricans (Haw.) Sims