Penstemon davidsonii var. praeteritus

Cronquist

Leafl. W. Bot. 10: 129. 1964.

Endemic
Treatment appears in FNA Volume 17. Treatment on page 88. Mentioned on page 87.

Leaf-blades elliptic to ovate, sometimes spatulate, margins entire, apex obtuse to acute. Flowers: corolla bluish lavender to violet, (30–) 34–45 mm, sparsely white-lanate internally abaxially.


Phenology: Flowering May–Jul.
Habitat: Rock outcrops, talus slopes.
Elevation: 1500–2900 m.

Discussion

Populations of var. praeteritus occur on isolated, relatively dry peaks in the Great Basin. It is known from the Jackson Mountains and Pine Forest and Santa Rosa ranges in Humboldt County, Nevada, and the Pueblo Mountains and Steens Mountain in Harney County, Oregon, and is disjunct to the west from the nearest populations of var. davidsonii by approximately 120 km.

Selected References

None.

Lower Taxa

None.

"/3-3/4timescorollathroat" is not declared as a valid unit of measurement for this property.

white +  and lavender +
white-villous +  and glabrous +
2 cm20 mm <br />0.02 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
not glaucous +, puberulent +  and glabrous +
Obtuse (?) +  and Acute (?) +
Craig C. Freeman +
Cronquist +
glandular-pubescent +  and hairy +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered +
Dasanthera +
elliptic;orbiculate ovate or spatulate +
not +  and leathery +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
glandular-pubescent +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.43 cm4.3 mm <br />0.0043 m <br />) +
short-tubular +  and short-campanulate +
0.8 cm8 mm <br />0.008 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sessile +, short-petiolate +  and petiolate +
not +, personate +  and bilabiate +
3 cm30 mm <br />0.03 m <br /> (3.4 cm34 mm <br />0.034 m <br />) +
bluish lavender +  and violet +
white-lanate +
ventricose-ampliate +  and ampliate +
3.4 cm34 mm <br />0.034 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
sessile +  and short-petiolate +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
scale-like +  and not needlelike +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +
usually distinctly smaller +
0.4 cm4 mm <br />0.004 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Nev. +  and Oreg. +
drupe-like +
1500–2900 m. +
curved +  and straight +
1 +  and 4 +
Rock outcrops, talus slopes. +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
terminal +  and axillary +
subopposite +  and opposite +
persistent +
not +, glaucous +, hairy +  and glabrous +
5 (?) +  and 10 (?) +
leathery +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
erose +  and entire +
glandular +, glabrous +  and glandular-pubescent +
toothed +  and entire +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
puberulent +  and glandular-pubescent +
puberulent +  and glandular-pubescent +
5 +  and 4 +
Flowering May–Jul. +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
round +  and ovate or lanceolate +
0.1 cm1 mm <br />0.001 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Leafl. W. Bot. +
minute +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (?) +  and 1.4 cm14 mm <br />0.014 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
4 cm40 mm <br />0.04 m <br /> (10 cm100 mm <br />0.1 m <br />) +
1.9 cm19 mm <br />0.019 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
Penstemon menziesii subsp. davidsonii +
Penstemon davidsonii var. praeteritus +
Penstemon davidsonii +
variety +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
2-ridged +  and inflated +
not constricted +
secund +  and continuous +
conic +  and cylindric +
1 cm10 mm <br />0.01 m <br /> (6 cm60 mm <br />0.06 m <br />) +
straight +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
gibbous +  and not spurred +
0.6 cm6 mm <br />0.006 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
subshrub +  and cespitose +