Species Identification

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

AttributeThe current selection is Penstemon_filiformis
ClassificationPenstemon Saccanthera Saccanthera Heterophylli
GeneralThreadleaf beardtongue, RARE. Blooming: June
Anther1.2-1.4 mm (<1/8) each, dehiscing across common tips to their length, inner margins short-hairy.
Staminodesmooth, 2n=16.
Leavesstem leaves 20-70 mm (.75 to 2.75 inches) long, usually .5mm (1/8) wide, narrowly linear, sometimes glabrous, tightly rolled outward, entire; short basal leaves densely clustered.
Stems20-50 cm (14-18) tall, woody-branched below, finely backward-pointed-hairs.
Inflorescenseglandular
Corollasmall, 13-16 mm (<1), blue, glandular outside, floor smooth
Flower Colorblue
Calyx3.4-5.7mm (1/4) long, lobes lanceolate
HabitatOpen, rocky places, among shrubs or pines @450 m (1800)
RangeJosephine Co., OR, e Klamath Range (n Trinity, nw Shasta Cos.)