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Hackberry Beard-tongue

Penstemon subulatus

Photo © by Michael Plagens

Photographed along Camp Creek, n.e. Maricopa Co., Arizona. March 2008.

FLOWERS: Scarlet flowers are long-tubular and may appear partly two-lipped. Blooming mostly mid spring through early summer.

PERENNIAL: Tall, herbaceous wands from a perennial root-stock. Some stems may surpass 1½ m tall; mature plants may have a dozen or more stems from base.

LEAVES: Leaves are lanceolate to linear and are opposite on the stems. Leaves and stems are glabrous.

RANGE: Fairly common in the mid to upper elevations ( above 600 meters) of the Sonoran Desert along cliff faces and high on wash banks.

FRUIT: Dry capsules with a number of seeds.


Like most red flowers, the flowers of P. subulatus are highly attractive to hummingbirds. Indeed hummingbirds are the principal, if not only, effective pollinator.

Scrophulariaceae -- Figwort Family

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Copyright Michael J. Plagens, 1999-2010