The glandular-leaved Inula (I. glandulosa), of which a good representation is here given, is a beautiful hardy perennial.
"Scientific American Supplement, No. 433, April 19, 1884" by Various
Inula Helenium meinlen (Elecampane) .
"Handbook to the Severn Valley Railway Illustrative and Descriptive of Places along the Line from Worcester to Shrewsbury" by J. Randall
It may be driven away by smoke, especially by that from inula helenium, elecampane; and by that of cannabis, hemp.
"The Temple of Nature; or, the Origin of Society" by Erasmus Darwin
When freed from the accompanying inula-camphor by repeated crystallization from alcohol, helenin melts at 110 deg.
"Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 2" by Various
Heads discoid (radiate only in Inula), the pistillate flowers mostly filiform and truncate.
"The Manual of the Botany of the Northern United States" by Asa Gray
Another landscape at my feet
Unfolds its nearer grace the while,
Where gorses gleam with golden smile;
Where Inula lifts a russet head
The shepherd's spikenard sweet;
And closing Centaury points her rosy red.
"A Dorset Idyl" by Francis Turner Palgrave