- Source: Ptilimnium capillaceum
Ptilimnium capillaceum, known by the common name of herbwilliam, is a member of the carrot family, Apiaceae. It is a perennial herb, native to the eastern United States, from Texas to Massachusetts.
References
External links
Media related to Ptilimnium capillaceum at Wikimedia Commons
Data related to Ptilimnium capillaceum at Wikispecies