Species Identification

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

AttributeThe current selection is Penstemon_gibbensii
ClassificationPenstemon Habroanthus Glabri
GeneralGibben’s Penstemon 1982 Uncommon This species is a close relative of P. cyananthus, saxorsorum and fremontii. Blooms: May to June.
Antheropen to but not across the connective, fuzzy with short stiff hairs.
Staminodelightly bearded at tip.
LeavesMid-stem leaves 90 mm (3 ½”) long and 1/8 as wide, linear, lowest and upper leaves reduced.
Stems10-20 cm (4-8”) tall, leafy.
Inflorescenseshort, glandular, cymes 3-7 flowered.
Corolla15-20 mm (1/2 to ¾”) long, pale blue, lip bearded.
Flower Color
Calyx6-8 mm (<1/2”) long, edges thinned.
HabitatWhite, powdery Green River shale (very poor).
RangeSweetwater Co., WY, ne UT, nw CO