Species Identification

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

AttributeThe current selection is Penstemon_gentryi
ClassificationPenstemon Penstemon Fasciculus Campanulati
GeneralGentry’s Penstemon This species is closely related and similar to P. campanulatus that is better known. Its very narrow leaves distinguish it. Blooms: August to October.
AntherSmooth, spreading apart.
StaminodeSometimes not bearded, to minutely yellow-bearded.
Leaves8 cm (3”) long & 17-1/17 as wide, linear to linear-lanceolate, usually longer & narrower than in P. campanulatus, fascicles (leaflets in axils) small.
StemsLeafy, 6 dm (24”) tall.
InflorescenseLeafy, cyme 2-3 cm (about 1”) long, 1-3 flowered.
CorollaLarge, 30-32 mm (1 ¼”) long, pale lavender to whitish.
Flower Color
Calyx7-8 mm (½”) long, lobes broad-lanceolate.
RangeSouthwest Chihuahua, nearby Sonora, Mexico.