Species Identification

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

AttributeThe current selection is Penstemon_nudiflorus
ClassificationPenstemon Habroanthus Glabri
GeneralFlagstaff Penstemon. Species meaning nude flowers that are nearly bractless (miniature leaves) and endemic to nc AZ. Labeled G2-G3, vulnerable to imperiled globally. Bloom: Probably June to July.
Antherstraight, open to connective, widely divergent (cells spreading apart), opening moderately, but not flattened.
Staminodelong light-colored hairs, lightly bearded most of its length and somewhat exserted.
LeavesBasal rosette with smooth, thickened, blueish, entire lanceolate leaves.
Stems45-60 cm (17-22) tall, short inflorescence, many branched with rather bare stems, cymes few-flowered.
InflorescenseAn open panicle.
Corolla20-25 mm (1) long, pale orchid to lavender on long stems; lip with dense beard.
Flower Color
Calyx4-5 mm (1/16) long, broadly ovate coming to a sharp point.
HabitatPine woods with volcanic soils between 155-2200m (4500-7000).
RangeFound only at the Mogollon Rim nc AZ.