Species Identification

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

AttributeThe current selection is Penstemon_mensarum
ClassificationPenstemon Habroanthus Glabri
GeneralMesa Penstemon The name literally means “of tables” or of mesas and the species is found on top of Grand Mesa in w CO. Blooms: May to July.
AntherShort, stiff hairs, opening almost fully across connective.
StaminodeBearded with long yellow hairs at the tip, just reaching the orifice.
LeavesGreen, narrowly elliptic or oblong, non-hairy, well developed at the base, but largely absent along stem.
Stems4-5 dm (16-18”) tall.
Inflorescenselong, interrupted on several stems.
Corolla20-30 mm (3/4-1 ¼”) long, dark almost iridescent, purple-blue, minutely sticky/fuzzy, occurring in whorls, almost all on one side of stem, bulging on one side, narrowed at the lips.
Flower Color
Calyx3-4 mm (1/8”) long.
HabitatTablelands, 2300-3100m (7000-9500’).
RangeMesa and Delta Cos., CO.