Species Identification

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

AttributeThe current selection is Penstemon_navajoa
ClassificationPenstemon Habroanthus Glabri
GeneralNavaho Mountain Penstemon Stems: Short-lived perennial, 2-4 dm tall; stems erect or ascending, 1 to few arising from a crown or short-branched caudex (root base), surmounting a taproot; herbiage smooth. Blooms: July and early August.
Anther1.2-1.5 mm long, opening to the connective, villous with long, tangled hairs exceeding the width of the cell or sometimes smooth except for nipple-toothed opening.
Staminodereaching the orifice, smooth; fertile stamens reaching the orifice.
Leaves2-8 cm (1-3) long, basal and lower cauline 4-10 mm wide, narrowly oblanceolate to spatulate, acute, obtuse or rounded at base, tapering to a petiolar (stemmed) base; the upper cauline 1-1.5 mm wide, filiform (thread-like) to linear, rolled inward or folded.
StemsShort-lived perennial, 2-4 dm tall; stems erect or ascending, 1 to few arising from a crown or short-branched caudex (root base), surmounting a taproot; herbiage smooth.
InflorescenseThyrse of about 4 verticillasters, raceme-like (equal-stalked flowers equally arranged on stem) with 1-flowered cymes, smooth, the flowers one side of stem.
Corolla19-23 mm (3/4) long, bellied on one side, lips blue, tube light blue to white, smooth externally, palate sparsely white-bearded.
Flower Color
Calyx3.5-4.5 mm <1/4) long, the segments acute or obtuse, smooth, the margins narrowly thinned, entire to undulate.
HabitatRocky, open places in ponderosa pine, Douglas fir or subalpine fir wooded areas, 2500-3260 m (7000-9000).
RangeNavajo Mt., San Juan Co. UT.