|Photo by John R. Gwaltney, Southeastern Flora.com|
|Division:||Magnoliophyta – Flowering plants|
|Class:||Magnoliopsida – Dicotyledons|
|Family:||Asteraceae ⁄ Compositae|
| Nabalus serpentarius|
|Natural range of Nabalus serpentarius from USDA NRCS Plants Database.|
Common names: Cankerweed; Lion's-foot; Gall-of-the-earth
Synonyms: Prenanthes serpentaria Pursh; Nabalus serpentarius (Pursh) Hooker; Nabalus integrifolius Cassini
A description of Nabalus serpentarius is provided in The Flora of North America.
In the Coastal Plain in Florida and Georgia, N. serpentarius can be found in longleaf pine-wiregrass flatwoods, beech magnolia woods, rich loam on steep slopes of wooded sinkhole ravines, rich mesic woodlands of shallow ravines, wooded ravine bottoms, dry woods, clay hillsides, clay loam in open stands, mixed pine-hardwood stands, open pine-oak woodlands, hardwood forest bluffs, drying loamy sand along mesic woodlands with limestone outcrops, subxeric woodlands on slopes of rivers, and frequently burned mature longleaf pine-wiregrass community.  It can also be found along sidewalks.
Flowering and fruiting have been observed in October. 
Conservation and management
Cultivation and restoration
References and notes
- Florida State University Robert K. Godfrey Herbarium database. URL: http://herbarium.bio.fsu.edu. Last accessed: July 2015. Collectors: James R. Burkhalter, Loran C. Anderson, P. L. Redfearn, Robert K. Godfrey, R. S. Mitchell, Robert Kral, Rodie White. States and Counties: Florida: Escambia, Gadsden, Jackson, Jefferson, Leon, Liberty, Okaloosa, Santa Rosa, Wakulla, Washington. Georgia: Grady, Thomas. Compiled by Tall Timbers Research Station and Land Conservancy.