External links to taxonomic opinions:
- IPNI Life Sciences Identifier (LSID)
- urn:lsid:ipni.org:names:292621-2
- Publication
- Memoirs of the New York Botanical Garden. Bronx, NY
- Collation
- 1: 464
- Family as entered in IPNI
- Asteraceae
Links
- Nomenclatural link
- Hieracium rydbergii Zahn.
- Nomenclatural link
- Hieracium scouleri [infrasp.unranked] griseum A.Nelson
- Nomenclatural link
- Hieracium scouleri var. griseum A.Nelson in J.M.Coult. & A.Nelson, New Man. Bot. Centr. Rocky Mt. 596 (1909).
- Same citation as
- Hieracium griseum Rydb., Mem. New York Bot. Gard. 1: 464 (1900).