Penstemon alluviorum is a species of flowering plant in the veronica group.
It is native to the Eastern United States where it is found in
alluvial lowlands, particularly of the Mississippi and Ohio rivers.
The specimen shown here was photographed on Railroad Street,
southbound near the rail tracks at McDavid, Florida.
The scientific name of Penstemon alluvoirum
is a poorly understood taxon. The differences between this and
two related species, Penstemon digitalis and Penstemon
laevigatus, are not well resolved. It is identified within
the complex by having corollas that are 1 inch long, sepals that
are less than 1/2 inch long, and leaves that are 1/2 inch wide.
It produces white (rarely lavender) flowers in late spring.
Page Return to Index