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Starry Rosinweed - Silphium asteriscus
Starry Rosinweed - Silphium asteriscus
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Starry Rosinweed - Silphium asteriscus

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Starry Rosinweed is a robust wildflower that occurs naturally in flatwoods, sandhills and disturbed areasIt has bright showy yellow flowers which attract a variety of butterflies, native bees and other pollinators. Flowerheads are large, up to 2½" in diameter.  Birds can eat its seeds.  Regarding seeds, it readily self-seeds and collecting seeds can be done by removing the dead head flowers once they are thoroughly dried on the plant. Following pollination, the flower loses its ray and disk flower petals.  As the flower dries, what is under the disk will be plate-like seeds.  Seeds should be stored at room temperature and planted in late winter or early spring. It can also propagate by rhizome, so root cuttings are a possibility.  This plant likes partial sun to full sun and has good drought tolerance.  Grows to 3- 5.5'.  The common name rosinweed refers to the gummy or resinous substance found in the stems. Native Americans chewed stems to clean their teeth.