Nomenclature: wfo-0001369492
Hieracium gracile subvar. densifloccum in Engler, Pflanzenr. 79: 1133. 1922
Nomenclatural References
- literature : Das Pflanzenreich: Regni vegetablilis conspectus. (1900-1937) at BHL. From parsing micro citation.
- person : Karl Hermann Zahn (1865-1940) Based on occurrence of standard abbreviation 'Zahn' in the authors string.
- database : IPNI record: 290163-2