Silphium asteriscus - Linnaeus, Syn. S. dentatum
Asteraceae (Composite Sunflower) Family
Starry Rosinweed is also known as Gold Coin Daisy and False Sunflower.
Plant is an upright large stemmed perennial with a rhizome from which new growth emerges. Preferred habitat is rocky woods, prairies and edge of pine woods. Distribution is throughout the Escambia region.
Leaves are opposite on the stem but occasionally alternate; leaf stalks; egg-shaped to lance-like. Leaf base is round or graduates to a narrow point. Tip is long pointed and has occasional scattered teeth but no lobes.
Flowers are large; a cluster of heads at the end of the flowering stem; symmetrical in form. Disc flowers are sterile; greenish. Ray flowers are numerous and bisexual in nature. Petal tip is notched; yellow. Flowering occurs in the summer.
Fruit is achene; oval nutlet, 4-8 mm wide and long, flat or curved, winged edges 1 mm wide with indented tip, nutlet contains one seed.