Pacif. Railr. Rep. 6(3): 82, plate 14. 1858.
Subshrubs, cespitose. Stems ascending to erect, (5–) 10–32 cm, glabrous or retrorsely hairy, not glaucous. Leaves persistent, 4–9 pairs, distals distinctly to slightly smaller than proximals, short-petiolate or sessile, (5–) 9–42 × 4–14 (–18) mm, blade elliptic to obovate, base tapered, cuneate, or cordate-clasping, margins ± serrulate or serrulate-denticulate to serrate, apex rounded to obtuse or acute, glabrous, glaucous. Thyrses continuous, ± secund, 2–20 cm, axis glandular-pubescent, verticillasters 4–12, cymes 1-flowered; proximal bracts ovate to lanceolate, 4–11 (–20) × 2–8 (–15) mm; peduncles and pedicels ascending, glandular-pubescent. Flowers: calyx lobes lanceolate, 6–10 × 2–2.5 mm, glandular-pubescent; corolla pink, red, scarlet, lavender, or purple, essentially unlined internally but abaxial ridges sometimes pink to whitish, not personate, funnelform, 22–35 mm, glabrous externally, moderately to densely white-lanate internally abaxially, tube 6–9 mm, throat 5–12 mm diam.; stamens included or longer pair exserted, pollen-sacs 0.8–1.7 mm; staminode 8–14 mm, slightly flattened distally, 0.1–0.3 mm diam., tip straight, distal 2–8 mm pubescent to lanate, hairs white or yellowish, to 1 mm; style 20–24 mm. Capsules (8–) 10–13 × (4–) 5–8 mm.
Calif., Nev., Oreg.
Varieties 3 (3 in the flora).
Penstemon newberryi is known from the Sierra Nevada and Cascade ranges of California, Nevada, and Oregon.
|1||Corollas pink to lavender or purple, 27–35 mm; stamens included, pollen sacs 1.2–1.7 mm.||Penstemon newberryi var. berryi|
|1||Corollas red, scarlet, or purple, 22–30 mm; stamens: longer pair exserted, pollen sacs 0.8–1.3 mm.||> 2|
|2||Corollas red to scarlet; distal leaves distinctly smaller than proximals.||Penstemon newberryi var. newberryi|
|2||Corollas purple; distal leaves slightly smaller than proximals.||Penstemon newberryi var. sonomensis|
"/3-3/4timescorollathroat" is not declared as a valid unit of measurement for this property.