Topic: Hieracium argillaceum
I've checked and double checked but this hawkweed isn't showing up in R6 and no synonyms present themselves. Its listed in the BSBI database and here's the info from the Plant List (theplantlist.org):
Hieracium argillaceum Jord. is an accepted name
This name is the accepted name of a species in the genus Hieracium (family Compositae).
The record derives from TICA which reports it as an accepted name (record 48CEE2E9-6038-4B23-AFF5-9A21753510F0?) with original publication details: 17 1849.
Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:214957-1?.
Synonyms:
No synonyms are recorded for this name.
Thanks
Purgle
Wiltshire & Swindon Biological Records Centre