Virginia sneezeweed (Helenium virginicum), Virginia spiraea (Spiraea virginiana). Common names include common sneezeweed and large-flowered sneezeweed. "Helenium virginicum"is similar to and often mistaken for "Helenium autumnale", the common sneezeweed. Common sneezeweed is cultivated as a garden perennial. Common sneezeweed is a perennial herb up to tall. The plant containing this chamissonolid is actually eponymously called sneezeweed.