Penstemon eriantherus var. argillosus

M. E. Jones

Contr. W. Bot. 12: 62. 1908.

Endemic
Synonyms: Penstemon whitedii subsp. dayanus (Howell) D. D. Keck
Treatment appears in FNA Volume 17. Treatment on page 134. Mentioned on page 135, 136.

Stems retrorsely hairy, hairs sometimes appressed, white, scalelike, and sometimes also glandular-villous distally. Leaves glabrous abaxially, retrorsely hairy or puberulent adaxially, hairs sometimes appressed, white, scalelike. Flowers: corolla lavender to violet, funnelform, 18–28 mm, not constricted at orifice; pollen-sacs navicular to subexplanate, 1.2–1.6 mm; staminode: distal 3–5 mm sparsely lanate, hairs yellow, to 1 mm; style 12–14 mm.


Phenology: Flowering May–Jun.
Habitat: Sandy or gravelly soils, juniper woodlands.
Elevation: 300–1300 m.

Discussion

Variety argillosus is known from north-central Oregon. Populations are concentrated in the John Day and Deschutes river drainages in Crook, Gilliam, Grant, 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 +
M. E. Jones +
hairy +, glandular-pubescent +  and glandular-villous +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered;tapered +
Penstemon +
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 />) +
not personate +, rarely nearly radially symmetric +  and weakly strongly bilabiate +
3.5 cm35 mm <br />0.035 m <br /> (4.2 cm42 mm <br />0.042 m <br />) +
lavender +  and violet +
glandular-pubescent +  and yellow-villous +
ventricose +  and tubular-funnelform +
not constricted +
1.8 cm18 mm <br />0.018 m <br /> (2.8 cm28 mm <br />0.028 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 +
drupe-like +
300–1300 m. +
curved +  and straight +
1 +  and 4 +
Sandy or gravelly soils, juniper woodlands. +
yellow +  and white +
glandular-villous +
scale-like +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
terminal +  and axillary +
short-petiolate +, sessile +  and petiolate +
whorled +  and opposite +
persistent +  and deciduous +
basal +  and cauline +
puberulent +, hairy +  and glabrous +
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. +
widely divergent +  and opposite +
navicular-sigmoid +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.16 cm1.6 mm <br />0.0016 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 />) +
Contr. W. Bot. +
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 />) +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.5 cm5 mm <br />0.005 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 +
6 cm60 mm <br />0.06 m <br /> (60 cm600 mm <br />0.6 m <br />) +
glandular-pubescent +  and glabrous +
1.2 cm12 mm <br />0.012 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
papillate +  and smooth +
denticulate +
Penstemon whitedii subsp. dayanus +
Penstemon eriantherus var. argillosus +
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 +