File Size: 26 KB
Penstemon digitalis  Nutt. ex  Sims
Cherokee County, Kansas
Height: 2-5 feet
Family: Scrophulariaceae - Figwort Family
Flowering Period:   May, June
Also Called: Smooth beardtongue, smooth penstemon.
Stems: Mostly erect, 1-3 stems, glabrous and shiny or somewhat waxy, often reddish near base.
Leaves: Opposite, glabrous, entire to toothed; basal leaves lanceolate to ovate or spatulate, 1.2 to 8.8 inches long, .4 to 2.4 inches wide, tips pointed to blunt or rounded, stalked; stem leaves linear-lanceolate to ovate, 1 to 6.4 inches long, .4 to 2 inches wide, tips pointed, sessile to clasping; lower stem leaves often crowded and large; upper stem leaves widely spaced, much reduced.
Inflorescences: Panicle, 3 to 13 inches long, with 2-6 whorl-like clusters, 3 to many-flowered; stalks much branched, ascending or spreading; branches covered with gland-tipped hairs during flowering; bracts usually much reduced.
Flowers: Calyx 5-lobed, glandular-pubescent; lobes lance-ovate to ovate, 1/6 to 1/3 inch long, about 1/10 inch wide, pointed, margins rough; corolla slightly 2-lipped, .8 to 1.2 inch long, white, sometimes lined internally with faint reddish-purple lines, corolla throat abruptly inflated; lobes of upper lip 2, erect or ascending; lobes of lower lip 3, projecting; fertile stamens 4, in 2 sets; sterile stamen with recurved and flattened tip, sparsely bearded with whitish or yellowish hairs.
Fruits: Capsule, egg-shaped, 1/3 to 3/5 inch long; seeds numerous, slightly rounded to angular, tan to dark brown.
Habitat: Borders of woods, low open places in woods, prairies, meadows, fallow fields, and roadsides; loamy to sandy loam soil.
Distribution: East 1/3 of Kansas.
Comments: The enlarged tube resembles the genus Digitalis, which is where the name originates.

Foxglove beardtongue inflorescence
46 KB
Cherokee County, Kansas
Foxglove beardtongue flower
22 KB
Cherokee County, Kansas
Foxglove beardtongue
53 KB
Cherokee County, Kansas
Foxglove beardtongue
33 KB
Cherokee County, Kansas
Foxglove beardtongue
50 KB
Cherokee County, Kansas
Foxglove beardtongue leaves
58 KB
Cherokee County, Kansas