Ptilimnium costatum
PlantsFamily: Apiaceae · Genus: Ptilimnium

Correll, Donovan Stewart; Correll, Helen B. · public_domain
About
Ptilimnium costatum, commonly called ribbed mock bishopweed or big bishopweed, is a species of flowering plant in the carrot family (Apiaceae). It is native to the southeastern United States. It has a scattered and disjunct distribution, and is rare throughout its range. Its natural habitat in wetlands, such as swamps, marshes, and wet prairies.
Summary from Wikipedia
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Growing details and traits for Ptilimnium costatum in the Library.
No cultivars in the Library yet — the full profile above covers the species itself.