Ptilimnium capillaceum
PlantsFamily: Apiaceae · Genus: Ptilimnium
Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 2: 657. Courtesy of Kentucky Native Plant Society. Scanned by Omnitek Inc. · public_domain
About
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.
Summary from Wikipedia
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Growing details and traits for Ptilimnium capillaceum in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.