Penstemon confusus

M. E. Jones

Zoë 4: 280. 1893.

Common names: Owens Valley beardtongue
IllustratedEndemic
Treatment appears in FNA Volume 17. Treatment on page 152. Mentioned on page 150, 151, 153, 154.

Stems erect, 3–40 (–44) cm, glaucous. Leaves glabrous or obscurely scabrous, especially along margins, glaucous; basal and proximal cauline (25–) 30–60 × 5–10 (–14) mm, blade oblanceolate, base tapered, margins entire, apex obtuse to acute, sometimes mucronate; cauline 2 or 3 pairs, sessile, 15–50 (–57) × 2–8 (–12) mm, blade lanceolate to linear, base tapered, margins entire, apex acute. Thyrses ± interrupted, cylindric to ± secund, (2–) 3–25 (–30) cm, axis glabrous, verticillasters 3–10, cymes 1–5-flowered; proximal bracts lanceolate, 7–30 (–50) × 3–12 mm; peduncles and pedicels ascending to erect, glabrous. Flowers: calyx lobes ovate to obovate, rarely elliptic, (3.5–) 4–6 × 1.8–3 mm, margins entire or erose, glabrous; corolla violet or reddish violet to purple, with reddish or reddish purple nectar guides, bilaterally symmetric, bilabiate, tubular-funnelform, 14–18 (–20) mm, glabrous or glandular-pubescent externally, glabrous or glandular-pubescent internally, tube 6–8 mm, throat gradually inflated, 6–7 mm diam., rounded or slightly 2-ridged abaxially; stamens included, pollen-sacs navicular, sometimes explanate, 0.9–1.2 mm, sutures smooth or papillate; staminode 8–9 mm, flattened distally, 0.5–0.6 mm diam., tip recurved, distal 1–2 mm papillate, papillae golden yellow, to 0.2 mm, rarely glabrous; style 10–12 mm. Capsules 8–11 × 4–6 mm.


Phenology: Flowering Apr–Jun.
Habitat: Gravelly, often calcareous, soils, sagebrush shrublands, pinyon-juniper woodlands.
Elevation: 1700–2200 m.

Discussion

Penstemon confusus is known from northwestern Arizona, east-central Nevada, and southeastern Utah. The species is barely sympatric with P. utahensis in Lincoln County, Nevada, and Washington County, Utah.

Selected References

None.

Lower Taxa

None.

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

... more about "Penstemon confusus"
acute +, mucronate +  and obtuse +
Craig C. Freeman +
M. E. Jones +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered;tapered +
lanceolate;linear +
not +  and leathery +
erose +  and entire +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
glandular-pubescent +, glandular +  and glabrous +
ovate;obovate +
short-tubular +  and short-campanulate +
0.8 cm8 mm <br />0.008 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
5 cm50 mm <br />0.05 m <br /> (5.7 cm57 mm <br />0.057 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
short-petiolate +  and sessile +
Owens Valley beardtongue +
1.8 cm18 mm <br />0.018 m <br /> (2 cm20 mm <br />0.02 m <br />) +
reddish violet +  and purple +
glandular-pubescent +, glabrous +  and , +
tubular-funnelform +
ventricose-ampliate +  and ampliate +
1.4 cm14 mm <br />0.014 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1-5-flowered +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
scale-like +  and not needlelike +
Ariz. +, Nev. +  and Utah. +
drupe-like +
1700–2200 m. +
curved +  and straight +
1 +  and 4 +
Gravelly, often calcareous, soils, sagebrush shrublands, pinyon-juniper woodlands. +
0 cm0 mm <br />0 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
glaucous +, scabrous +  and glabrous +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
erose +  and entire +
reddish purple +  and reddish +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
golden yellow +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
ascending +  and erect +
ascending;erect +
5 +  and 4 +
Flowering Apr–Jun. +
navicular-sigmoid +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
3 cm30 mm <br />0.03 m <br /> (5 cm50 mm <br />0.05 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
minute +
brown +  and black +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Illustrated +  and Endemic +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 0.9 cm9 mm <br />0.009 m <br /> (?) +
40 cm400 mm <br />0.4 m <br /> (44 cm440 mm <br />0.44 m <br />) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
cauline +, proximal +  and basal +
3 cm30 mm <br />0.03 m <br /> (40 cm400 mm <br />0.4 m <br />) +
leathery +
1 cm10 mm <br />0.01 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
papillate +  and smooth +
denticulate +
Penstemon confusus +
Penstemon sect. Gentianoides +
species +
0.6 cm6 mm <br />0.006 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2-ridged +, rounded +  and inflated +
not constricted +
secund +  and interrupted +
25 cm250 mm <br />0.25 m <br /> (30 cm300 mm <br />0.3 m <br />) +
cylindric +
3 cm30 mm <br />0.03 m <br /> (25 cm250 mm <br />0.25 m <br />) +
straight +
gibbous +  and not spurred +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
cauline +  and proximal +