Jepson 1993, Kearney and Peebles 1969, Martin and Hutchins 1980
Duration: Perennial Nativity: Native Lifeform: Forb/Herb General: Perennial herbs to 40 cm tall, pubescent, the pubescence giving a gray, ashy appearance to the leaves and stems. Leaves: Opposite, linear-attenuate, all margins entire, thin, not crowded. Flowers: Corolla tube cylindric with the upper lip 2-lobed, blue to purplish, 25-35 mm long, hairy on the upper side, 2 nectaries at the base of the upper stamens, inflorescence densely glandular pubescent, borne in racemes on erect, mostly 1-flowered peduncles, calyx lobes oblong or oblong-lanceolate. Fruits: Fruit a capsule, dehiscing between the locules and/or septa. Ecology: Found on gravelly slopes in open areas, from 3,500-5,500 ft (1067-1676 m); flowering April-June. Distribution: s AZ, s NM, s TX; south to n MEX. Notes: Distinctive with the thin and linear leaves along with the glabrous staminode and a corolla without conspicuous guidelines on the tongue. Ethnobotany: Unknown Etymology: Penstemon is from Greek pente, five and stemon, indicating the five stamens of the genus, while dasyphyllus means shaggy leaved. Synonyms: None Editor: LCrumbacher 2011, FSCoburn 2015