Penstemon deustus var. variabilis

(Suksdorf) Cronquist in C. L. Hitchcock et al.

Vasc. Pl. Pacif. N.W. 4: 380. 1959.

EndemicConservation concern
Basionyms: Penstemon variabilis Suksdorf Deutsche Bot. Monatsschr. 18: 153. 1900
Synonyms: P. deustus subsp. variabilis (Suksdorf) Pennell & D. D. Keck
Treatment appears in FNA Volume 17. Treatment on page 202. Mentioned on page 200.

Leaves whorled, sometimes opposite or subopposite, cauline 11–48 × (0.5–) 1–5 mm, blade oblanceolate or lanceolate to linear, margins serrate to serrulate distally or entire. Flowers: calyx lobes ovate to lanceolate, 2.8–4.5 × 0.8–1.6 mm, apex acute to acuminate; corolla 10–12 (–15) mm, glandular-pubescent externally, glandular-pubescent internally, abaxial lobes white to ochroleucous, sometimes tinged lavender; staminode: distal 0.5 mm sparsely villous, hairs white, to 0.5 mm. 2n = 32.


Phenology: Flowering Jun–Jul.
Habitat: Gravelly slopes, streambeds.
Elevation: 600–2600 m.

Discussion

Variety variabilis occurs from southern Washington to central and eastern Oregon. Populations are most concentrated in the Blue Mountains.

Selected References

None.

Lower Taxa

None.

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

Acute (?) +  and Acuminate (?) +
Craig C. Freeman +
(Suksdorf) Cronquist in C. L. Hitchcock et al. +
glandular-pubescent +
alternate +, subopposite +, whorled +  and opposite +
glaucescent +
alternate +, opposite +, whorled +, helical +  and subopposite +
cauline +, proximal +  and basal +
rarely +, not glaucous +, glabrate +, pubescent +, hairy +, glandular-lanate +, glandular-pubescent +, puberulent +, glandular +  and glabrous +
not +  and leathery +
tapered +
Penstemon variabilis +
lanceolate;linear +
not +  and leathery +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
glandular-pubescent +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
short-tubular +  and short-campanulate +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
sessile +  and petiolate +
5 cm50 mm <br />0.05 m <br /> (5.2 cm52 mm <br />0.052 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (4.8 cm48 mm <br />0.048 m <br />) +
personate +, not personate +, bilabiate +  and symmetric +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
tinged lavender +, white +  and ochroleucous +
glandular-pubescent +
ampliate +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1-6-flowered +
scale-like +  and not needlelike +
Oreg. +  and Wash. +
drupe-like +
600–2600 m. +
curved +  and straight +
1 +  and 4 +
Gravelly slopes, streambeds. +
0 cm0 mm <br />0 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
membranous +
terminal +  and axillary +
subopposite +, opposite +  and whorled +
persistent +  and deciduous +
hairy +  and glabrous +
not leathery +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
entire +, serrate +  and serrulate +
glutinous +
glandular-ciliolate +, hairy +, puberulent +, glabrescent +, glabrous +  and glandular-pubescent +
lacerate +, toothed +  and entire +
purple +  and brownish +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
glandular-pubescent +
glandular-pubescent +
5 +  and 4 +
Flowering Jun–Jul. +
navicular-sigmoid +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
1/5 +  and 2/3 +
0.6 cm6 mm <br />0.006 m <br /> (4 cm40 mm <br />0.04 m <br />) +
lanceolate +  and linear +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Vasc. Pl. Pacif. N.W. +
minute +
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Black (?) +, Gray (?) +, Brown (?) +  and Tan (?) +
angled +  and slightly rounded +
Endemic +  and Conservation concern +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
glutinous +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
15 cm150 mm <br />0.15 m <br /> (50 cm500 mm <br />0.5 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
papillate +
denticulate +
P. deustus subsp. variabilis +
Penstemon deustus var. variabilis +
Penstemon deustus +
variety +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
2-ridged +  and inflated +
not constricted +
cylindric +
6 cm60 mm <br />0.06 m <br /> (30 cm300 mm <br />0.3 m <br />) +
straight +
villous +, pilose +  and glabrous +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
gibbous +  and not spurred +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +