Helenium autumnale L.

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Helenium autumnale is a North American species of poisonous flowering plants in the family Asteraceae. Common names include common sneezeweed and large-flowered sneezeweed.

Description

Close-up of flower

Common sneezeweed is a perennial herb up to 130 cm (51+1⁄3 in; 4+1⁄3 ft) tall. In late summer and fall, one plant can produce as many as 100 yellow flower heads in a branching array. Each head has yellow 11–21 ray florets surrounding sometimes as many as 800 yellow disc florets. Leaves are dark green, alternate, and lance-shaped. The Latin specific epithet autumnale is in reference to the plant's autumn flowering.

Distribution and habitat

This plant is widespread across much of the United States and Canada, from Northwest Territories as far south as far northern California, Arizona, Louisiana, and Florida. It has not been found in southern or central California, or the 4 Atlantic Provinces of Canada. It grows in moist, open areas along streams and ponds as well as wet meadows.

Ecology

The flowers attract various pollinators, including bees, butterflies, and wasps. Because the plant is pollinated by insects, not wind pollinated, it does not cause seasonal allergies or sneezing, despite its common name.

Helenium autumnale - Wikipedia

 

 

https://youtu.be/7_i6Pm3h1Fg?t=358

Helenium autumnale (Large-flowered Sneezeweed) – 10,000 Things of the Pacific Northwest (10000thingsofthepnw.com)