WOOLLY ARNICA 
Arnica tomentosa Macoun 
Woolly arnica is one of many species of this genus, which belongs 
to the Aster Family. It is a graceful perennial with large bright yel- 
low flower heads produced at the ends of the stems. Like other parts 
of the plant the leaves are conspicuously woolly, hence the appropri- 
ateness of the name given to it. We found this atnica growing high 
on the mountainside where it maintained a precatious foot-hold in 
shallow soil in crevices of limestone tocks. 
This species has a narrow tange, occurting only in Alberta and 
British Columbia. 
The plant illustrated was gathered in the valley of the Siffleur 
Rivet, British Columbia, at an altitude of 5,000 feet. 
PLATE 348 
