'Helenium autumnale' definitions:
Definition of 'Helenium autumnale'
(from WordNet)
noun
North American perennial with bright yellow late summer flowers [syn: autumn sneezeweed, Helenium autumnale]
Definition of 'Helenium autumnale'
From: GCIDE
- Sneezeweed \Sneeze"weed`\, n. (Bot.) A yellow-flowered composite plant (Helenium autumnale) the odor of which is said to cause sneezing. [1913 Webster]