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Habit Subshrubs.
Stems

retrorsely hairy proximally, glandular-pubescent distally, not glaucous.

Leaves

cauline, opposite, leathery, glabrous or retrorsely hairy proximally, not glaucous;

cauline short-petiolate or sessile, blade oblanceolate, obovate, or elliptic, margins toothed or entire.

Thyrses

interrupted, secund, axis glandular-pubescent, cymes 1 per node;

peduncles and pedicels ascending to erect.

Flowers

calyx lobes: margins entire, herbaceous, glandular-pubescent;

corolla red, bilaterally symmetric, bilabiate, not personate, funnelform, glandular-pubescent externally, glandular-pubescent internally abaxially and adaxially, throat gradually inflated, not constricted at orifice, rounded abaxially;

stamens included or longer pair reaching orifice, filaments glabrous, pollen sacs divergent, navicular to saccate, dehiscing completely or incompletely, sometimes distal 1/5–1/4 indehiscent, connective splitting, sides glabrous, sutures papillate or denticulate, papillae or teeth to 0.1 mm;

staminode included, flattened distally, 0.3–0.4 mm diam., tip straight, glabrous;

style glabrous.

Capsules

glabrous.

Seeds

dark brown, angled, 1.5–2 mm.

Penstemon sect. Baccharifolii

Distribution
from FNA
TX; n Mexico
Discussion

Species 1.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 17, p. 96.
Parent taxa Plantaginaceae > Penstemon > subg. Penstemon
Subordinate taxa
Name authority Pennell: Monogr. Acad. Nat. Sci. Philadelphia 1: 270. (1935)
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