Penstemon scariosus var. albifluvis

(England) N. H. Holmgren in A. Cronquist et al.

Intermount. Fl. 4: 442. 1984.

Common names: White River beardtongue
EndemicConservation concern
Basionym: Penstemon albifluvis England Great Basin Naturalist 42: 367. 1982
Treatment appears in FNA Volume 17. Treatment on page 179.

Leaves: basal seldom persisting. Flowers: calyx lobes 5–7.3 × 2.4–3 mm; corolla 22–28 mm, sparsely glandular-pubescent externally, limb lavender to pale blue; pollen-sacs (1.6–) 1.8–2.2 mm; style 18–22 mm.


Phenology: Flowering May–Jun.
Habitat: Desert shrublands, pinyon-juniper woodlands.
Elevation: 1500–2200 m.

Discussion

Variety albifluvis occurs in the Uinta Basin. The variety is known in Colorado only from small populations on barren rock outcrops of Green River Shale on Raven Ridge, Rio Blanco County (S. L. O’Kane 1988); Utah populations are restricted to Uintah County.

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 +
(England) N. H. Holmgren in A. Cronquist et al. +
glandular-pubescent +  and glabrous +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered;tapered +
Penstemon albifluvis +
oblanceolate;oblong or linear +
not +  and leathery +
0.4 cm4 mm <br />0.004 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
0.32 cm3.2 mm <br />0.0032 m <br /> (0.37 cm3.7 mm <br />0.0037 m <br />) +
glandular-pubescent +  and glabrous +
ovate;lanceolate +
short-tubular +  and short-campanulate +
0.6 cm6 mm <br />0.006 m <br /> (1 cm10 mm <br />0.01 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.65 cm6.5 mm <br />0.0065 m <br />) +
White River beardtongue +
not personate +, weakly bilabiate +  and strongly bilabiate +
blue +  and lavender +
glandular-pubescent +
ventricose +
ventricose-ampliate +
2.2 cm22 mm <br />0.022 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
2-5-flowered +
scale-like +  and not needlelike +
Colo. +  and Utah. +
drupe-like +
1500–2200 m. +
curved +  and straight +
1 +  and 4 +
Desert shrublands, pinyon-juniper woodlands. +
yellow +  and white +
0 cm0 mm <br />0 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
cauline +  and basal +
lavender;pale blue +
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 +
glandular-pubescent +  and glabrous +
spreading;erect;ascending +
glandular-pubescent +  and glabrous +
5 +  and 4 +
Flowering May–Jun. +
divergent +  and opposite +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.18 cm1.8 mm <br />0.0018 m <br />) +
sigmoid +  and navicular-sigmoid +
indehiscent +  and dehiscing +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
navicular +  and navicular-sigmoid +
short-petiolate +
7 cm70 mm <br />0.07 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (2 cm20 mm <br />0.02 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (7 cm70 mm <br />0.07 m <br />) +
lanceolate +  and linear +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
3.4 cm34 mm <br />0.034 m <br /> (11.5 cm115 mm <br />0.115 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Intermount. Fl. +
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 +
Endemic +  and Conservation concern +
exserted +  and included +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
included +  and exserted +
1.1 cm11 mm <br />0.011 m <br /> (?) +  and 1.9 cm19 mm <br />0.019 m <br /> (?) +
short-petiolate +  and petiolate +
50 cm500 mm <br />0.5 m <br /> (60 cm600 mm <br />0.6 m <br />) +
glutinous +
not persisting +
climbing +  and scrambling +
erect;ascending +
not glaucous +  and glabrous +
reduced +
16 cm160 mm <br />0.16 m <br /> (50 cm500 mm <br />0.5 m <br />) +
not +  and leathery +
1.8 cm18 mm <br />0.018 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
papillate +
denticulate +
Penstemon subg. Habroanthus +
Penstemon scariosus var. albifluvis +
Penstemon scariosus +
variety +
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
rounded +  and inflated +
constricted +
secund +, continuous +  and interrupted +
18 cm180 mm <br />0.18 m <br /> (25 cm250 mm <br />0.25 m <br />) +
cylindric +
6 cm60 mm <br />0.06 m <br /> (18 cm180 mm <br />0.18 m <br />) +
straight +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
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 +