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Date: 2010-07-12 15:00:27Flora Physocarpus opulifolius Physocarpus Asclepias Ilex verticillata Cephalanthus occidentalis Scirpus Eupatorium Flora of the United States Medicinal plants Flora of North America | Buttonbush (cephalanthus occidentalis)Add to Reading ListSource URL: www.epa.govDownload Document from Source WebsiteFile Size: 28,60 KBShare Document on Facebook |