Penstemon digitalis Nutt. ex Sims  
Family: Plantaginaceae
false foxglove, foxglove beard-tongue, tall beard-tongue, tall white beard-tongue
Penstemon digitalis image
Merel R. Black  
Etymology: Penstemon: from the Greek pente, "five," and stemon, "stamen," for the fifth stamen, referring to the staminode, or just an allusion to the fact that it has five stamens
Plants: erect, perennial, 1'-4' tall forb; stems shiny, smooth, purplish
Leaves: basal rosette of stalked leaves, stem leaves opposite and stalkless, all leaves with smooth undersides
Flowers: white often with some purple lines, 5-parted, 1/2"-1" long, tubular, the tube much longer than the flaring lobes but slightly shorter than the 5 stamens (1 infertile), throat open with a flat base; inflorescence a 4"-12" cluster with upward-pointing branches; blooms May-July
Habitat: full to partial sun; moderate moisture; prairies, fields, woods; in sandy, loamy soil
Conservation Status: Introduced - naturalized
Penstemon digitalis image
Merel R. Black  
Penstemon digitalis image
Christopher Noll  
Penstemon digitalis image
Botanical Illustration  
Penstemon digitalis image
Merel R. Black  
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