Penstemon richardsonii var. dentatus

(D. D. Keck) Cronquist in C. L. Hitchcock et al.

Vasc. Fl. Pacif. N.W. 4: 401. 1959.

Endemic
Basionym: Penstemon richardsonii subsp. dentatus D. D. Keck Brittonia 8: 250. 1957
Treatment appears in FNA Volume 17. Treatment on page 242.

Leaves: blade ovate, sometimes lanceolate, margins dentate, rarely laciniate-dentate. Flowers: corolla 22–30 mm; staminode: distal 2–8 mm sparsely lanate; style 16–22 mm.


Phenology: Flowering May–Aug(–Sep).
Habitat: Talus slopes, cliffs, crevices, often in basalt.
Elevation: 300–1500 m.

Discussion

Variety dentatus is known from north-central and northeastern Oregon (Baker, Crook, Deschutes, Grant, Jefferson, Morrow, Umatilla, Union, Wasco, and Wheeler counties).

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 +
(D. D. Keck) Cronquist in C. L. Hitchcock et al. +
glandular-pubescent +
subalternate +, whorled +, alternate +  and opposite +
alternate +, opposite +, whorled +, helical +  and subopposite +
cauline +, proximal +  and basal +
not +, glaucous +, glandular-pubescent +, hirsute +, pilose +, canescent +, hairy +, puberulent +, glabrate +  and glabrous +
tapered +
Penstemon richardsonii subsp. dentatus +
lanceolate;ovate +
not +  and leathery +
glandular-pubescent +
ovate;lanceolate +
1.3mm;2.3mm +
short-tubular +  and short-campanulate +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
sessile +  and short-petiolate +
1.3 cm13 mm <br />0.013 m <br /> (7 cm70 mm <br />0.07 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
not personate +  and bilabiate +
bluish +  and lavender or pinkish +
internally or +  and sparsely moderately white-lanate +
ventricose +
ventricose-ampliate +
2.2 cm22 mm <br />0.022 m <br /> (3 cm30 mm <br />0.03 m <br />) +
2-7-flowered +
2 +  and 1 +
scale-like +  and not needlelike +
drupe-like +
300–1500 m. +
curved +  and straight +
1 +  and 4 +
Talus slopes, cliffs, crevices, often in basalt. +
not glaucous +
pointed +
0 cm0 mm <br />0 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
membranous +
terminal +  and axillary +
subopposite +  and opposite +
persistent +  and deciduous +
not glaucous +, hairy +  and glabrate +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
erose +  and entire +
laciniate-dentate +  and dentate +
ciliolate +, pubescent +, puberulent +, scabrous +, glandular-pubescent +  and glabrous +
laciniate-dentate +  and irregularly laciniate-pinnatifid +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
glandular-pubescent +
glandular-pubescent +
5 +  and 4 +
Flowering May–Aug(–Sep). +
navicular-sigmoid +
0.13 cm1.3 mm <br />0.0013 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.7 cm7 mm <br />0.007 m <br /> (4.3 cm43 mm <br />0.043 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Vasc. Fl. Pacif. N.W. +
minute +
brown +, gray +  and tan +
patelliform +  and angled +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.34 cm3.4 mm <br />0.0034 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.08 cm0.8 mm <br />8.0e-4 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
20 cm200 mm <br />0.2 m <br /> (95 cm950 mm <br />0.95 m <br />) +
1.6 cm16 mm <br />0.016 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
papillate +
denticulate +
Penstemon subg. Saccanthera +
Penstemon richardsonii var. dentatus +
Penstemon richardsonii +
variety +
0.5 cm5 mm <br />0.005 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
rounded +  and inflated +
not constricted +
25 cm250 mm <br />0.25 m <br /> (48 cm480 mm <br />0.48 m <br />) +
cylindric +
2 cm20 mm <br />0.02 m <br /> (25 cm250 mm <br />0.25 m <br />) +
straight +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
gibbous +  and not spurred +
0.7 cm7 mm <br />0.007 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +