Penstemon abietinus

Pennell

Contr. U.S. Natl. Herb. 20: 376. 1920.

Common names: Fir-leaf beardtongue
EndemicConservation concern
Treatment appears in FNA Volume 17. Treatment on page 99.

Stems ascending to erect, 5–15 (–23) cm, retrorsely hairy or puberulent, hairs pointed. Leaves not leathery, puberulent proximally, hairs pointed, sometimes only along margins, glabrous distally; cauline 2–7 pairs, petiolate or sessile, 7–17 (–25) × 0.7–1.3 (–1.7) mm, blade linear, rarely oblanceolate, base tapered, apex acute to mucronate. Thyrses continuous, secund, 2–8 cm, axis retrorsely hairy, hairs pointed, and, sometimes, sparsely glandular-pubescent, verticillasters 2–10, cymes 1–3 (or 4) -flowered, 1 (or 2) per node; proximal bracts linear, 11–21 × 1–1.4 mm; peduncles and pedicels ascending to erect, retrorsely hairy, hairs pointed, and, sometimes, sparsely glandular-pubescent. Flowers: calyx lobes lanceolate, 4–5.5 × 1–1.6 mm, broadly scarious-margined, apex acuminate to caudate, sparsely glandular-pubescent, sometimes glabrate; corolla blue to bluish violet, lined internally abaxially with reddish violet nectar guides, funnelform, 12–15 (–18) mm, glabrous or sparsely white-villous internally abaxially, tube 5–6 mm, throat gradually inflated, 6–7 mm diam., 2-ridged abaxially; stamens: longer pair reaching orifice or exserted, filaments glabrous, pollen-sacs widely divergent or opposite, navicular, 0.8–1.1 mm, sutures papillate; staminode 6–8 mm, included, flattened distally, 0.3–0.4 mm diam., tip straight to recurved, distal 6–7 mm densely pilose, hairs golden yellow, to 1.1 mm; style 11–13 mm. Capsules 4.5–7 × 2.8–3.5 mm.


Phenology: Flowering Jun–Jul.
Habitat: Limestone-derived soils in pinyon-juniper and oak-juniper woodlands.
Elevation: 1800–2600 m.

Discussion

Penstemon abietinus is known from Emery, Iron, Sevier, and Utah counties. It bears a strong resemblance to erect varieties of P. crandallii in habit, leaf shape and pubescence, and corolla shape.

Selected References

None.

Lower Taxa

None.

"/4+timescorollathroat" is not declared as a valid unit of measurement for this property.

... more about "Penstemon abietinus"
glabrate +  and glandular-pubescent +
acuminate +  and caudate +
Craig C. Freeman +
Pennell +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered +
Penstemon +
oblanceolate +
not +  and leathery +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
scarious-margined +
short-tubular +  and short-campanulate +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
sessile +  and petiolate +
1.7 cm17 mm <br />0.017 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
Fir-leaf beardtongue +
1.5 cm15 mm <br />0.015 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
blue +  and bluish violet +
white-villous +  and glabrous +
salverform +  and tubular-funnelform +
ampliate +  and ventricose-ampliate +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
1-3-flowered +
scale-like +  and not needlelike +
drupe-like +
1800–2600 m. +
curved +  and straight +
1 +  and 4 +
Limestone-derived soils in pinyon-juniper and oak-juniper woodlands. +
golden yellow +
glandular-pubescent +  and glabrous +
pointed +
0 cm0 mm <br />0 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
cauline +, proximal +  and basal +
puberulent +
not leathery +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
erose +  and entire +
glabrate +, hairy +  and glandular-pubescent +
toothed +  and entire +
herbaceous +  and scarious +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
ascending;erect +
5 +  and 4 +
Flowering Jun–Jul. +
opposite +  and divergent +
navicular-sigmoid +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.14 cm1.4 mm <br />0.0014 m <br />) +
Contr. U.S. Natl. Herb. +
minute +
dark-brown +  and black +
angled +  and rounded +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
Endemic +  and Conservation concern +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
15 cm150 mm <br />0.15 m <br /> (23 cm230 mm <br />0.23 m <br />) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
puberulent +  and hairy +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
papillate +
denticulate +
Penstemon abietinus +
Penstemon sect. Caespitosi +
species +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2-ridged +  and inflated +
not constricted +
secund +  and continuous +
cylindric +
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
straight +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
gibbous +  and not spurred +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
subshrub +  and cespitose +