Species Identification

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

AttributeThe current selection is Penstemon_albomarginatus
ClassificationPenstemon Penstemon Penstemon Arenarii
GeneralWhite-margined Penstemon RARE. Blooms: April to June.
Anther0.9-1 mm long, spreading flat, seeds small, 1 mm across.
StaminodeSmooth.
LeavesLower-most scale-like; upper ones 15-50 mm (1/2-6) long & 1/3 as wide, white-edges and weakly dentate or entire, elliptic, tapering to both ends, bracts to 20 mm (3/4) long.
StemsPerennial 15-35 cm (6-14) tall, glabrous (smooth) herbage, crown buried in sand, bare-looking below, leafy above, no basal leaves, lower stem leaves reduced.
InflorescenseSmooth.
CorollaTiny, 13-17 mm (about ) long, pink to purple, pale underneath, smooth except floor of lower lip hairy, expanded moderately.
Flower Color
Calyx3-5 mm (1/4) long, lobes ovate-elliptic, white-margined, finely serrate.
HabitatLoose desert sand, generally on stabilized dunes, 700-900 m (2500-3000).
RangeMohave Desert, CA, s NV, nw AZ.