Species Identification

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

AttributeThe current selection is Penstemon_roezlii
ClassificationPenstemon Saccanthera Saccanthera Heterophylli
GeneralRoezl’s Penstemon. Blooms: Late May into July, may rebloom in Oct.
Anther1.6-2mm long, oval in outline and as broad as long, purple, opening about ˝-3/5 the length across the connected ends, permanently parallel or horseshoe-shaped, the sutures white-hairy or spiny.
StaminodeWhite, smooth, slightly expanded at tip and just reaching the opening of corolla.
Leaves2-7 cm (1-3”) long, entire, very finely pubescent and pale gray-green, oblanceolate to narrowly lance-shaped on short petioles at the base and on the lower stems, linear to narrowly lanceolate above, commonly folded lengthwise.
Stems2-5 dm (8-20”) tall with several, slender stems rising in a clump glandular in the inflorescence, pubescent (fuzzy) below, often with sterile leafy shoots at the base.
InflorescenseA mixed raceme above and panicle below; the lower stems spreading, of 4-12 verticillasters, the cymes loose or open and few-flowered, glandular-pubescent (sticky-fuzzy) stems.
Corolla1.4-2.2 cm (9/16-7/8”) long, bright blue to blue-violet or purplish; the throat lighter, glandular outside, smooth within.
Flower Color
Calyx3.5-6mm (to 1/4”) long lobes linear to narrowly ovate and often dissimilar, acute to acuminate, glandular, green or purplish and entire (smooth-edged).
HabitatDry, rocky or gravelly slopes and flats with sagebrush, juniper or ponderosa pine, 700-2500 m (2000-6000’).
RangeWheeler Co., to sw OR, n CA in the Sierra and w NV.