Vascular Plants of North Carolina
Account for Indian-tobacco - Lobelia inflata   L.
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Section 6 » Order Campanulales » Family Campanulaceae
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AuthorL.
DistributionThroughout the mountains and Piedmont. Barely ranges into the western edge of the Coastal Plain, sparingly east to Greene County.

This is a very widespread species in the East, found in nearly every county in the range. It occurs from eastern Canada south to central portions of GA and AL, and barely to LA.
AbundanceCommon and widespread in the mountains and Piedmont; very rare to rare into the edge of the Coastal Plain.
HabitatThis is one of the few Lobelia species that is not a requisite wetland species. It occurs in many upland habitats, usually in mesic soil. It grows along wooded borders and in openings, fields and meadows, powerline clearings, and vacant lots. In many ways, it appears to be an exotic species, even though it is a native species.
PhenologyBlooms from July to frost, and fruits soon after flowering.
IdentificationThis is a very easy species to identify, familiar to all biologists. It is an erect species with numerous ascending branches, to about 2' tall, and quite hairy throughout. The numerous alternate leaves are 2-3" long, about 1" wide, elliptical to ovate, and serrated on the margins. The upper 6" of the stem is the slender raceme, of numerous pale blue (to rarely white) flowers, each quite small for a Lobelia, mostly just 3/10" long. Immediately after flowering, the base of the flower becomes greatly inflated into a sphere or a "small football" shape. Normally, you will see at least a few such inflated flowers near the bottom of the raceme while some of the upper flowers are still in bloom.
Taxonomic CommentsNone

Other Common Name(s)Though Indian-tobacco is an idiosyncratic name, essentially all references for decades have given the plant this name, with essentially no alternative using "Lobelia" in the common name.
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