Species Identification

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

Attribute	The current selection is Penstemon_digitalis
Classification	Penstemon Penstemon Penstemon Penstemon
General	Foxglove Penstemon It has many cultivars such as the awarded ‘Husker Red’, ranges through the northern Mississippi River basin and has naturalized into the ne U.S., Ontario and Quebec. Blooms: April to August.
Anther	Densely or lightly bearded, open end-to-end, boat shape.
Staminode	Scarcely bearded, slightly protruding from flower.
Leaves	Large basal rosettes to 2 dm (8”) long and ¼ as wide, upper leaves to 17.5 cm (7”) long that normally disappear at flowering, slightly toothed, thin textured, dark green, maroon in winter.
Stems	To 7-15 dm (28-60”, to 5’) tall, stems shiny.
Inflorescense	Broad panicles, cyme 3-9 cm (1-3 1/2”) long, 2-10 flowered.
Corolla	Large, inflated, usually white, but occasionally tinged with purple, 2-lipped, expanded abruptly with lower lobes slightly longer, glandular (sticky).
Flower Color
Calyx	5-8 mm (1/4”) long, sepals narrow, spreading outwards.
Habitat	Open woodlands, meadows and fields, at low elevations.
Range	Widespread from eastern Great Plains into ME, Ontario and Quebec, (IA, s to e TX, ne to WI, VA, New England).