Opuntia densispina Ralston & Hilsenb. in Madroño 39(4): 281–284, f. 1. 1992.

Nomenclatural References

• person : Barbara E. Ralston Based on occurrence of standard abbreviation 'Ralston' in the authors string.
• person : Richard A. Hilsenbeck (b.1952) Based on occurrence of standard abbreviation 'Hilsenb.' in the authors string.
• database : The Plant List version 1.0, record: tro-5107418
• database : The Plant List version 1.1, record: tro-5107418