Not an accepted name (status: unknown).
The accepted name is
Tephroseris longifolia (Jacq.) Griseb. & Schenk, 1852.
Tephroseris longifolia subsp. brachychaeta
Greuter, 2003
2% complete
No common name
Willdenowia 33(2): 248 (22 Dec. 2003) (2003)
There is no corrections for Tephroseris longifolia subsp. brachychaeta yet.