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Penstemon tenuiflorus
Conservation status
Apparently Secure  (NatureServe)
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Lamiales
Family:	Plantaginaceae
Genus:	Penstemon
Species:	P. tenuiflorus
Binomial name
Penstemon tenuiflorus Pennell

Penstemon tenuiflorus, commonly known as eastern whiteflower beardtongue, is a species of flowering plant in the plantain family. It is native only to a small area of the Southeastern United States, in the southern Interior Low Plateau and Black Belt of Alabama and Mississippi. Its preferred habitat is limestone glades and woodlands.

References

1. NRCS. "Penstemon tenuiflorus". PLANTS Database. United States Department of Agriculture (USDA). Retrieved 22 September 2015.
2. "Flora of the Southern and Mid-Atlantic States".
3. The Comparative Biology of the Two Closely-Related Species Penstemon tenuiflorus Pennell and P. hirsutus (L.) Willd. (Scrophulariaceae, Section Graciles): IV. Effects of Shade, Drought, and Soil Type on Survival and Growth Richard K. Clements, Jerry M. Baskin and Carol C. Baskin Castanea, Vol. 67, No. 2 (Jun., 2002), pp. 177-187

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