willow-leaf sunflower
Helianthus salicifolius A.Dietr.

Helianthus salicifolius, known as willow-leaf sunflower, is a species in the Asteraceae family. It is native to the central United States, particularly the Great Plains and Ozark Plateau. Scattered populations in the Northeast and Midwest are likely escapes from cultivation. The species was first described in 1834 by A.Dietr.
Description
Helianthus salicifolius is a member of the genus Helianthus and is part of the Asteraceae family. It is primarily found in the central United States, with reports from Kansas, Missouri, Nebraska, Oklahoma, Texas, and Wisconsin. There are also records of its occurrence in parts of Europe and other regions, though these are likely due to cultivation or introduction. The species is characterized by its willow-like leaves and is commonly referred to as willow-leaf sunflower in English.
Other common names
Willowleaf Sunflowerwillow-leaf sunflower
Distribution
Belgium · Flemish Region · Czech Republic · Hungary · SE · CZ · DK · Global · SK · Brussels-Capital Region · Germany · Kansas · Missouri · Nebraska · New York · Oklahoma · Poland · Texas · Ukraine · Wisconsin
Synonyms
Helianthus filiformis
