Penstemon virgatus var. virgatus

Endemic
Treatment appears in FNA Volume 17. Treatment on page 183. Mentioned on page 182.

Stems puberulent. Leaves ± puberulent. 2n = 16.


Phenology: Flowering Jun–Oct.
Habitat: Sandy to gravelly hillsides, oak woodlands, pine forests.
Elevation: 2000–2900 m.

Discussion

Variety virgatus occurs discontinuously in the mountains of north-central Arizona and of north-central and western New Mexico. Plants from Arizona, where the variety is sympatric with Penstemon putus (and sometimes collected with it), often are more slender and bear smaller flowers than do plants from New Mexico.

Selected References

None.

Lower Taxa

None.

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

obtuse +  and acute +
Craig C. Freeman +
A. Gray in W. H. Emory +
hairy +  and glabrous +
alternate +, opposite +, whorled +, helical +  and subopposite +
glaucous +, puberulent +  and glabrous +
not leathery +
tapered;truncate +
Penstemon +
lanceolate;lanceolate;oblanceolate +
not +  and leathery +
puberulent +  and glabrous +
ovate;elliptic +
1.3mm;2.2mm +
short-tubular +  and short-campanulate +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
4 cm40 mm <br />0.04 m <br /> (11.8 cm118 mm <br />0.118 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
not personate +, weakly bilabiate +  and strongly bilabiate +
violet to lavender +
glabrous +  and white-villous +
ventricose +
ventricose-ampliate +
1.7 cm17 mm <br />0.017 m <br /> (2.7 cm27 mm <br />0.027 m <br />) +
2-5-flowered +
scale-like +  and not needlelike +
Ariz. +, Colo. +  and N.Mex. +
drupe-like +
2000–2900 m. +
curved +  and straight +
1 +  and 4 +
Sandy to gravelly hillsides, oak woodlands, pine forests. +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
, +, cauline +  and basal +
puberulent +
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 +
hairy +  and glabrous +
spreading;erect;ascending +
hairy +  and glabrous +
5 +  and 4 +
Flowering Jun–Oct. +
divergent +  and opposite +
sigmoid +  and navicular-sigmoid +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
1/5 +  and 1/3 +
7.4 cm74 mm <br />0.074 m <br /> (9.8 cm98 mm <br />0.098 m <br />) +
1.9 cm19 mm <br />0.019 m <br /> (7.4 cm74 mm <br />0.074 m <br />) +
lanceolate +  and linear +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Rep. U.S. Mex. Bound. +
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 +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (?) +  and 1.4 cm14 mm <br />0.014 m <br /> (?) +
short-petiolate +  and petiolate +
65 cm650 mm <br />0.65 m <br /> (90 cm900 mm <br />0.9 m <br />) +
glutinous +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
cauline +, proximal +  and basal +
puberulent +
reduced +
20 cm200 mm <br />0.2 m <br /> (65 cm650 mm <br />0.65 m <br />) +
not +  and leathery +
1.3 cm13 mm <br />0.013 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
papillate +  and smooth +
denticulate +
Penstemon subg. Habroanthus +
Penstemon virgatus var. virgatus +
Penstemon virgatus +
variety +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
rounded +  and inflated +
constricted +
secund +, interrupted +  and continuous +
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 /> (40 cm400 mm <br />0.4 m <br />) +
straight +
smooth +  and papillate +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
gibbous +  and not spurred +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
petiolate +  and sessile +
cauline +  and proximal +