Haworthia nigra f. angustata (Poelln.) Pilbeam Haworthia & Astroloba : 101 (1983)

Nomenclatural References

• person : John Pilbeam (b.1931) Based on occurrence of standard abbreviation 'Pilbeam' in the authors string.
• person : Karl von Poellnitz (1896-1945) Based on occurrence of standard abbreviation 'Poelln.' in the authors string.
• database : IPNI record: 922213-1
• database : The Plant List v1.1 record kew-277308
• database : The Plant List version 1.0, record: kew-277308