Species Identification

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

AttributeThe current selection is Penstemon_tenuis
ClassificationPenstemon Penstemon Penstemon Penstemon
GeneralDelicate or Thin Penstemon Blooms: April to June.
AntherOpening flat, not hairy.
StaminodeSlight beard most of length, barely exserted.
LeavesStem leaves10 cm (4) long & as wide at base, 1/8 as wide most of length, arrowhead-shape, narrowly abruptly from broad base to long narrow tip; lower leaves forming large basal rosette to 18 cm (7) long and 1/5 as wide.
Stems4-9 dm (16-36) tall and wiry.
InflorescenseBranching into delicate open panicles of many flowers, usually glabrous (smooth), cyme 1-5 cm (1/2-2) long, 1-4 flowered.
CorollaSmall, 12-15 mm (1/2+) long, orchid to violet-purple with pale lips, sometimes no guidelines, expands abruptly, to wide mouth with lobes at right angles to tube, smooth. Anther-sacs: Opening flat, not hairy.
Flower Color
Calyx3-6 mm (1/4) long; sepals with long narrow tip.
HabitatWet woodland soils heavy soils, swales and bottomlands close to Gulf of MX.
RangeSoutheast TX, OK LA, AR.