Penstemon cyananthus var. subglaber

(A. Gray) N. H. Holmgren

Brittonia 31: 105. 1979.

Endemic
Basionym: Penstemon fremontii var. subglaber A. Gray in A. Gray et al. Syn. Fl. N. Amer. 2(1): 262. 1878
Synonyms: P. cyananthus subsp. subglaber (A. Gray) Pennell
Treatment appears in FNA Volume 17. Treatment on page 164. Mentioned on page 163.

Stems ascending to erect, 22–70 (–90) cm. Cauline leaves: blade lanceolate to oblanceolate. Thyrses 5–21 cm, verticillasters 4–11. Flowers: calyx lobes ovate to lanceolate, apex acute to cuspidate, rarely acuminate; corolla 16–25 (–28) mm. 2n = 16.


Phenology: Flowering May–Jul.
Habitat: Clayey soils, sagebrush shrublands.
Elevation: 1400–2900 m.

Discussion

Variety subglaber is easily confused with individuals of Penstemon subglaber with sparsely glandular-pubescent corollas; calyx lobe shape and anther morphology usually distinguish the two reliably. Penstemon holmgrenii S. L. Clark is an invalid name that applies here.

Selected References

None.

Lower Taxa

None.

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

acuminate +, acute +  and cuspidate +
Craig C. Freeman +
(A. Gray) N. H. Holmgren +
alternate +, opposite +, whorled +, helical +  and subopposite +
not glaucous +  and puberulent +
cordate-clasping +  and clasping +
tapered +
Penstemon fremontii var. subglaber +
lanceolate;oblanceolate +
not +  and leathery +
ovate;lanceolate +
1.3mm;2.6mm +
short-tubular +  and short-campanulate +
0.7 cm7 mm <br />0.007 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not personate +, weakly bilabiate +  and strongly bilabiate +
2.5 cm25 mm <br />0.025 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
blue +  and violet +
ventricose +
ventricose-ampliate +
1.6 cm16 mm <br />0.016 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
3-7-flowered +
pilose +  and lanate +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
scale-like +  and not needlelike +
Idaho +, Mont. +, Utah +  and Wyo. +
drupe-like +
1400–2900 m. +
curved +  and straight +
1 +  and 4 +
Clayey soils, sagebrush shrublands. +
white +, yellow +  and orange +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
cauline +  and basal +
not +  and leathery +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
glutinous +
puberulent +, glandular-pubescent +  and glabrous +
lacerate +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
spreading +, erect +  and ascending +
0.1 cm1 mm <br />0.001 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
spreading;erect;ascending +
0 cm0 mm <br />0 m <br /> (2 cm20 mm <br />0.02 m <br />) +
5 +  and 4 +
Flowering May–Jul. +
0.2 cm2 mm <br />0.002 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
sigmoid +  and navicular-sigmoid +
indehiscent +  and dehiscing +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1/4 +  and 1/3 +
long-petiolate +
4.5 cm45 mm <br />0.045 m <br /> (6 cm60 mm <br />0.06 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (8 cm80 mm <br />0.08 m <br />) +
ovate +  and lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (10 cm100 mm <br />0.1 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
minute +
tan +  and brown or dark-brown +
angled +  and angled-elongate +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
papillate +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
reaching orifice +  and included +
1.1 cm11 mm <br />0.011 m <br /> (?) +  and 1.4 cm14 mm <br />0.014 m <br /> (?) +
short-petiolate +  and petiolate +
70 cm700 mm <br />0.7 m <br /> (90 cm900 mm <br />0.9 m <br />) +
glutinous +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
cauline +, proximal +  and basal +
not glaucous +, glabrous or +  and sparsely densely puberulent +
reduced +
22 cm220 mm <br />0.22 m <br /> (70 cm700 mm <br />0.7 m <br />) +
not +  and leathery +
0.9 cm9 mm <br />0.009 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
papillate +
denticulate +
P. cyananthus subsp. subglaber +
Penstemon cyananthus var. subglaber +
Penstemon cyananthus +
variety +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
2-ridged +  and inflated +
not constricted +
interrupted +  and continuous +
cylindric +
5 cm50 mm <br />0.05 m <br /> (21 cm210 mm <br />0.21 m <br />) +
straight +
smooth +  and papillate +
0 cm0 mm <br />0 m <br /> (0.01 cm0.1 mm <br />1.0e-4 m <br />) +
gibbous +  and not spurred +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
petiolate +  and sessile +
cauline +  and proximal +