Crataegus viridis f. padukensis E.J.Palmer & Pickens Neighborhood Res. 4(2: 4): 61 (1940)

Nomenclatural References

• person : Andrew Lee Pickens (b.1890) Based on occurrence of standard abbreviation 'Pickens' in the authors string.
• person : Ernest Jesse Palmer (1875-1962) Based on occurrence of standard abbreviation 'E.J.Palmer' in the authors string.
• database : IPNI record: 69175-2