G4
Apparently Secure
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 neomexicanus (New Mexico Beardtongue)
Plants perennial, glabrous; stems stout, 3-6 dm tall; leaves opposite, basal usually withered at flowering time, stem leaves narrowly lanceolate; inflorescence one-sided, narrow, not glandular; calyx lobes lanceolate, 4-8 mm long; corolla blue, purpl...