Penstemon crandallii var. glabrescens

(Pennell) C. C. Freeman

J. Bot. Res. Inst. Texas 11: 287. 2017.

Endemic
Basionym: Penstemon glabrescens Pennell Contr. U.S. Natl. Herb. 20: 375. 1920
Synonyms: P. coloradoensis var. glabrescens (Pennell) A. Nelson P. crandallii subsp. glabrescens (Pennell) D. D. Keck P. linarioides subsp. taosensis D. D. Keck
Treatment appears in FNA Volume 17. Treatment on page 102. Mentioned on page 103.

Stems ascending to erect, 6–28 cm, retrorsely hairy or puberulent. Leaves glabrate or scabrous, 6–25 × 0.5–1.5 mm; blade linear, rarely oblanceolate. 2n = 16.


Phenology: Flowering May–Jul(–Aug).
Habitat: Pinyon-juniper woodlands, ponderosa pine forests.
Elevation: 1700–3400 m.

Discussion

Variety glabrescens is weakly differentiated from var. crandallii. Variety glabrescens is documented in Archuleta, Conejos, Custer, Delta, Dolores, Fremont, La Plata, Mineral, Montezuma, and Saguache counties, Colorado, and Rio Arriba and Taos counties, New Mexico.

Selected References

None.

Lower Taxa

None.

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

puberulent +
acuminate +  and caudate +
Craig C. Freeman +
(Pennell) C. C. Freeman +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered +
Penstemon glabrescens +
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 +
0.7 cm7 mm <br />0.007 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.9mm;1.8mm +
short-tubular +  and short-campanulate +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (4.7 cm47 mm <br />0.047 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
blue +  and violet or lavender +
yellow-pilose +  and yellow-lanate +
salverform +  and tubular-funnelform +
ampliate +  and ventricose-ampliate +
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1-4-flowered +
2 +  and 1 +
scale-like +  and not needlelike +
Colo. +  and N.Mex. +
drupe-like +
1700–3400 m. +
curved +  and straight +
1 +  and 4 +
Pinyon-juniper woodlands, ponderosa pine forests. +
golden yellow +
glandular-pubescent +
pointed +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
0.6 cm6 mm <br />0.006 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
cauline +, proximal +  and basal +
scabrous +  and glabrate +
not leathery +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
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 +
reddish purple +  and violet +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
glandular-pubescent +  and hairy +
ascending;erect +
glandular-pubescent +  and hairy +
5 +  and 4 +
Flowering May–Jul(–Aug). +
navicular-sigmoid +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
oblanceolate +  and linear +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
J. Bot. Res. Inst. Texas +
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 />) +
included +  and exserted +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (?) +  and 1.4 cm14 mm <br />0.014 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
climbing +  and scrambling +
ascending;erect +
puberulent +  and hairy +
6 cm60 mm <br />0.06 m <br /> (28 cm280 mm <br />0.28 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
papillate +
denticulate +
P. coloradoensis var. glabrescens +, P. crandallii subsp. glabrescens +  and P. linarioides subsp. taosensis +
Penstemon crandallii var. glabrescens +
Penstemon crandallii +
variety +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2-ridged +  and inflated +
not constricted +
secund +  and continuous +
8 cm80 mm <br />0.08 m <br /> (16 cm160 mm <br />0.16 m <br />) +
cylindric +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
straight +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
gibbous +  and not spurred +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
subshrub +  and cespitose +