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Black Eyed Susan
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Black eyed Susans are wildflowers theat grow in meadows or native plant gardens for a naturalized look. It is an upright annual (sometimes biennial or perennial) growing 30�100 cm (12�39 in) tall by 30�45 cm (12�18 in) wide. It has alternate, mostly basal leaves 10�18 cm long, covered by coarse hair, with stout branching stems and daisy-like, composite flowers appearing in late summer and early autumn. In the species, the flowers are up to 10 cm (4 in) in diameter, with yellow ray-florets circling conspicuous brown or black, dome-shaped disc-florets. However, extensive breeding has produced a range of sizes and colors, including oranges, reds and browns. The genus name honors Olaus Rudbeck, who was a professor of botany at the University of Uppsala in Sweden and was one ofLinnaeus's teachers. The specific epithet refers to the trichomes (hairs) occurring on leaves and stems.The roots but not seedheads of Rudbeckia hirta can be used much like the related Echinacea purpurea. It is an astringent used as in a warm infusion as a wash for sores and swellings. The Ojibwa used it as a poultice for snake bites and to make an infusion for treating colds and worms in children. The plant is diuretic and was used by the Menominee and Potawatomi. Juice from the roots had been used as drops for earaches.
The plant contains anthocyanins.
FEATURED PHOTO in Weekly Fun For All on 6/28/13
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June 25th, 2013
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