Penstemon eriantherus var. cleburnei

(M. E. Jones) Dorn

Vasc. Pl. Wyoming, 300. 1988.

Common names: Cleburn’s beardtongue
Endemic
Basionym: Penstemon cleburnei M. E. Jones Contr. W. Bot. 12: 62. 1908
Treatment appears in FNA Volume 17. Treatment on page 135. Mentioned on page 134.

Stems retrorsely hairy, sometimes also villous. Leaves glabrate or retrorsely hairy abaxially, retrorsely hairy and, sometimes, villous adaxially. Flowers: corolla lavender to violet, ventricose-ampliate, 16–22 (–25) mm, constricted at orifice; pollen-sacs explanate, 0.8–1.2 mm; staminode: distal 2–4 mm densely lanate, hairs orangish, to 3 mm; style 9–12 (–14) mm.


Phenology: Flowering May–Jun(–Jul).
Habitat: Clayey, sandy, or gravelly soils, sagebrush shrublands.
Elevation: 1400–2500 m.

Discussion

Variety cleburnei occurs mostly in central and western Wyoming, west of the Bighorn Mountains, Casper Arch, and Laramie Mountains; some populations extend into northeastern Utah. Variety cleburnei and var. eriantherus intergrade in eastern and north-central Wyoming.

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 +
(M. E. Jones) Dorn +
hairy +, glandular-pubescent +  and glandular-villous +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered;tapered +
Penstemon cleburnei +
oblanceolate;oblong lanceolate or linear +
not +  and leathery +
glandular-pubescent +  and glandular-villous +
short-tubular +  and short-campanulate +
0.6 cm6 mm <br />0.006 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
glandular-pubescent +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Cleburn’s beardtongue +
not personate +, rarely nearly radially symmetric +  and weakly strongly bilabiate +
2.2 cm22 mm <br />0.022 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
lavender +  and violet +
glandular-pubescent +  and yellow-villous +
ventricose +  and tubular-funnelform +
constricted +  and ventricose-ampliate +
1.6 cm16 mm <br />0.016 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
2-6-flowered +
0.6 cm6 mm <br />0.006 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
scale-like +  and not needlelike +
Utah +  and Wyo. +
drupe-like +
1400–2500 m. +
curved +  and straight +
1 +  and 4 +
Clayey, sandy, or gravelly soils, sagebrush shrublands. +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +
terminal +  and axillary +
short-petiolate +, sessile +  and petiolate +
whorled +  and opposite +
persistent +  and deciduous +
basal +  and cauline +
villous +, hairy +  and glabrate +
not leathery +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
serrate +, dentate +  and entire +
glabrous +, puberulent +, hairy +, scabrous +, glandular-villous +  and glandular-pubescent +
toothed +  and entire +
scarious +  and herbaceous +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
hairy +, glandular-pubescent +  and glandular-villous +
ascending;erect +
hairy +, glandular-pubescent +  and glandular-villous +
5 +  and 4 +
Flowering May–Jun(–Jul). +
widely divergent +  and opposite +
navicular-sigmoid +
0.08 cm0.8 mm <br />8.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
1/5 +  and 1/2 +
short-petiolate +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
oblanceolate +  and oblong or lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
glandular-pubescent +  and glabrous +
0.1 cm1 mm <br />0.001 m <br /> (1 cm10 mm <br />0.01 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (9 cm90 mm <br />0.09 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Vasc. Pl. Wyoming, +
minute +
black +, dark-brown +  and brown +
angled +  and reniform or slightly rounded +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.09 cm0.9 mm <br />9.0e-4 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.4 cm4 mm <br />0.004 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
2 cm20 mm <br />0.02 m <br /> (6 cm60 mm <br />0.06 m <br />) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
villous +  and hairy +
6 cm60 mm <br />0.06 m <br /> (60 cm600 mm <br />0.6 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
glandular-pubescent +  and glabrous +
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
papillate +  and smooth +
denticulate +
Penstemon sect. Albidi +
Penstemon eriantherus var. cleburnei +
Penstemon eriantherus +
variety +
0.6 cm6 mm <br />0.006 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
rounded +  and inflated +
not +  and constricted +
interrupted +  and continuous +
20 cm200 mm <br />0.2 m <br /> (27 cm270 mm <br />0.27 m <br />) +
cylindric +
2 cm20 mm <br />0.02 m <br /> (20 cm200 mm <br />0.2 m <br />) +
straight +
gibbous +  and not spurred +
0.4 cm4 mm <br />0.004 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
cauline +  and proximal +
acaulescent +  and caulescent +