Vascular Plants of North Carolina
Account for Southern Rockbell - Wahlenbergia marginata   (Thunberg) A.L.P.P. de CandolleOnly member of Wahlenbergia in NC.
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Section 6 » Order Campanulales » Family Campanulaceae
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Author(Thunberg) A.L.P.P. de Candolle
DistributionSo far, confined to the Sandhills and southern Coastal Plain. First collected in 1957 in Robeson County. It is spreading slowly and will be found in other counties.

Native of eastern Asia and Oceania; in N.A. NC to FL, TX, AR.
AbundanceFairly common to common, notably increasing over the years, and spreading in range. Individual populations may support hundreds of plants, while others just a few.
HabitatDry to mesic sandy roadsides, fields, fallow cropfields, granitic flatrocks (Anson Co.), disturbed soils, yard weed.
PhenologyFlowering April-October (rarely earlier or later).
IdentificationSouthern Rockbell is a slender wisp of a plant that may grow to 1.5 feet, the stems single to many. The leaves are linear. The flowers grow on slender stalks, are 5-8 mm long, pale to medium blue, tubular with lobes generally spreading. Without the flowers, the plants almost disappear and would be easily overlooked.
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State RankSE
Global RankG4?
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USACE-agcp
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