September 15th, 2012. We saw this small Agalinis species growing in a north-facing dry ditch by the roadside in Rabun County. The flowers were distinctly smaller than those of Agalinis purpurea.
Agalinis tenuifolia (Slenderleaf False Foxglove, Slender Gerardia, Thin-leaved Agalinis) is native to the United States where it’s found in all states east of the Rocky Mountains. In Georgia, it’s been documented in many counties but more frequently in counties in the Piedmont and far north Georgia.
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Southestern Flora: Agalinis tenuifolia (Slenderleaf False Foxglove)
Natural and Naturalized Plants of the Carolinas and Georgia: Agalinis tenuifolia (Slender Gerardia, Thin-leaved Agalinis)
Missouri Plants: Agalinis tenuifolia
J Pippen, Duke University: SlenderleafFalse Foxglove, Slener Gerardia (Agalinis tenuifolia)
United States Department of Agriculture Plants Database: Agalinis tenuifolia (Slenderleaf False Foxglove)