Rattlesnake Weed, a native species, has been added to the USWildflowers database (11/09/2011.) Scientific name is Hieracium venosum.  Photo below was taken in White County, Ga on May 2, 2011.   Rattlesnake Weed is also known by the common names Rattlesnake Hawkweed and Veiny Hawkweed.  Go to the Rattlesnake Weed detail page for more photos and information.

Rattlesnake Weed, Rattlesnake Hawkweed, Veiny Hawkweed - Hieracium venosum