D
Dropped
Penstemon breviculus (Narrow-Mouth Penstemon)
Perennial; stems 0.8-2.0 dm tall, erect, or slightly upward-curving, retrorsely puberulent; leaves mostly basal, opposite, entire or rarely few toothed, lanceolate, elliptic, or spatulate, basal leaves somewhat petiolate, stem leaves sessile; inflore...
Penstemon deaveri (Mt. Graham Beardtongue)
Plants perennial, robust; stems, 2-6 dm tall, pubescent; inflorescence puberulent, not glandular, narrow; corolla varying from blue-purple to violet-purple or lavender, 16-25 mm long, widely inflated, base of lower lobes (sparsely to) moderately whit...
Penstemon lentus (Abajo Penstemon)
Perennial herb, 3-5 dm tall; herbage glaucous, glabrous; stems ascending to erect, 1-few; leaves 2-11 cm long, 5-30 mm wide, fleshy, entire, the basal and lower stem leaves petiolate, spatulate, the upper leaves sessile, ovate to lanceolate; inflores...
Penstemon pulchellus
semi-evergreen perennial from Central America
Penstemon ramosus (Branching Beardtongue)
Robust heterophyllous perennials from a woody caudex; stems 3-7.5 dm tall, puberulent, often branching midway up the stem; leaves of the branches linear, about 1 mm wide and 25 mm long; leaves of the main stem 3-6 mm wide, 6-11 cm long, isophyllous a...