Penstemon azureus var. azureus

Endemic
Treatment appears in FNA Volume 17. Treatment on page 231.

Cauline leaves 10–65 × 4–20 mm, blade elliptic to ovate or lanceolate, base tapered to clasping or cordate-clasping. Flowers: calyx lobes obovate to oblong, 2.5–4.8 × 2–3.2 mm, apex cuspidate to mucronate. 2n = 48.


Phenology: Flowering May–Aug.
Habitat: River benches, mesas, and slopes in oak, pine, or juniper woodlands.
Elevation: 500–2500 m.

Discussion

Variety azureus is known from the Cascade, Klamath, and North Coast ranges, and in the Sierra Nevada from southwestern Oregon (Curry, Jackson, and Josephine counties) south to Fresno County, California.

Selected References

None.

Lower Taxa

None.

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

cuspidate +  and mucronate +
Craig C. Freeman +
Bentham +
subalternate +, whorled +, alternate +  and opposite +
alternate +, opposite +, whorled +, helical +  and subopposite +
cauline +, proximal +  and basal +
not +, glaucous +, glandular-pubescent +, hirsute +, pilose +, canescent +, hairy +, puberulent +, glabrate +  and glabrous +
glaucous +  and glabrous +
cordate-clasping +  and clasping +
tapered +
elliptic;ovate or lanceolate +
not +  and leathery +
2.5mm;4.8mm +
obovate;oblong +
short-tubular +  and short-campanulate +
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
1.4 cm14 mm <br />0.014 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
short-petiolate +, petiolate +  and sessile +
1 cm10 mm <br />0.01 m <br /> (6.5 cm65 mm <br />0.065 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (2 cm20 mm <br />0.02 m <br />) +
not personate +  and bilabiate +
violet +  and blue +
ventricose +
ventricose-ampliate +  and ampliate +
1.8 cm18 mm <br />0.018 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1-3-flowered +
scale-like +  and not needlelike +
Calif. +  and Oreg. +
drupe-like +
500–2500 m. +
curved +  and straight +
1 +  and 4 +
River benches, mesas, and slopes in oak, pine, or juniper woodlands. +
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0 cm0 mm <br />0 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
cauline +  and basal +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
erose +  and entire +
ciliolate +, pubescent +, puberulent +, scabrous +, glandular-pubescent +  and glabrous +
lacerate +, laciniate-pinnatifid +, toothed +  and entire +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
ascending;erect +
5 +  and 4 +
Flowering May–Aug. +
navicular-sigmoid +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
1/3 +  and 1/2 +
short-petiolate +
0.4 cm4 mm <br />0.004 m <br /> (5 cm50 mm <br />0.05 m <br />) +
ovate +  and lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
1 cm10 mm <br />0.01 m <br /> (9 cm90 mm <br />0.09 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Pl. Hartw., +
minute +
brown +, gray +  and tan +
patelliform +  and angled +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
hispidulous +  and pilose +
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (?) +  and 1.9 cm19 mm <br />0.019 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
50 cm500 mm <br />0.5 m <br /> (70 cm700 mm <br />0.7 m <br />) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
glaucous +  and glabrous +
13 cm130 mm <br />0.13 m <br /> (50 cm500 mm <br />0.5 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
papillate +
denticulate +
Penstemon subg. Saccanthera +
Penstemon azureus var. azureus +
Penstemon azureus +
variety +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2-ridged +  and inflated +
not constricted +
secund +, continuous +  and interrupted +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
cylindric +
6 cm60 mm <br />0.06 m <br /> (31 cm310 mm <br />0.31 m <br />) +
straight +
0 cm0 mm <br />0 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
gibbous +  and not spurred +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
cauline +  and proximal +