Helianthus schweinitzii NatureServe Explorer Species Reports — NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports — ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world. Helianthus schweinitzii is a perennial wildflower endemic to the Piedmont physiographic province of North Carolina and South Carolina. Its common name is Schweinitz’s sunflower. It is a member of the Sunflower Family. It is one of the rarest species of sunflower in the United States. It is common along utility and highway rights-of-way in North Carolina and South Carolina. There are only about 90 known populations, many containing less than 40 plants each. The U.S. Fish and Wildlife Services listed Schweinitz’s sunflower as an endangered species on May 7, 1991.
FWS Digital Media Library — The U.S. Fish and Wildlife Service’s National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.
