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Photographer: Merel R. Black
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Family Scrophulariaceae
Penstemon digitalis Nutt. ex Sims
false foxglove, foxglove beard-tongue, tall beard-tongue, tall white beard-tongue
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
digitalis: from the Latin for finger, because of the corolla shape
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| Status: | Introduced - naturalized |
| Plant: | erect, perennial, 1'-4' tall forb; stems shiny, smooth, purplish |
| Flower: | 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 |
| Leaf: | basal rosette of stalked leaves, stem leaves opposite and stalkless, all leaves with smooth undersides |
| Habitat: | full to partial sun; moderate moisture; prairies, fields, woods; in sandy, loamy soil |
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