312 Petasites hybridus
The sole Irish records traced (Mayo,^435 Limerick^436 ) are both, as in Som-
erset, as a rheumatism treatment.
Eupatorium cannabinum Linnaeus
hemp-agrimony
Europe, western and central Asia, North Africa; introduced into
North America, New Zealand
(Folk credentials questionable) Eupatorium cannabinum was so widely rec-
ommended in the books that its apparent absence from the Irish folk records
Petasites hybridus, butterbur (Bock 1556, p. 157)