Species Identification

Interested in the identification of penstemons? Please select a species then click on submit:

AttributeThe current selection is Penstemon_laevigatus
ClassificationPenstemon Penstemon Penstemon Penstemon
GeneralSmooth Penstemon [syn: Chelone penstemon Linnaeus] This species is the type for section Penstemon and for the genus, so it is considered the most typical penstemon for botanists, which it certainly is not. It looks similar to P. digitalis, but is smaller. Blooms: May to June
AntherWidely spreading apart, smooth.
StaminodeTuft of long hair at tip, barely extending from corolla.
LeavesStem leaves 1dm (4) long & 1/3 to 1/7 as wide, lanceolate, tapering gradually to tip; basal leaves few to 1.5 dm (6) long & as wide, elliptic or oval, usually disappearing at flowering.
Stems4-8 dm (16-32) tall, stiff stems.
InflorescenseOpen thyrse, cyme often long, 2-10 cm (1-4), 2-6 flowered.
CorollaSmall, 15-20 mm (1/2-3/4) long, light or dark purple, lobes at right angles to throat.
Flower Color
CalyxSepals small, 3-5 mm (<1/4) long.
HabitatSandy, loam soil in meadows and open woodland at low elevations.
RangeWidely distributed from south-central AL, nw FL, c PN, MD, NJ and along the eastern coastal plain.