Penstemon eriantherus var. redactus

Pennell & D. D. Keck

Bull. Torrey Bot. Club 65: 252. 1938.

Endemic
Synonyms: Penstemon whitedii subsp. tristis Pennell & D. D. Keck
Treatment appears in FNA Volume 17. Treatment on page 135. Mentioned on page 134.

Stems retrorsely hairy, sometimes also glandular-pubescent distally or wholly. Leaves glabrous or retrorsely hairy abaxially, retrorsely hairy and, sometimes, sparsely villous adaxially. Flowers: corolla lavender to violet, ventricose-ampliate, 18–25 mm, not constricted at orifice; pollen-sacs navicular to subexplanate, 1.2–1.9 mm; staminode: distal 4–5 mm moderately lanate, hairs yellow, to 3 mm; style 9–14 mm. 2n = 16.


Phenology: Flowering May–Jul.
Habitat: Sandy or gravelly soils, sagebrush shrublands.
Elevation: 600–2700 m.

Discussion

Variety redactus occurs largely in the Salmon River Basin in Idaho (Butte, Clark, Custer, Idaho, and Lemhi counties), southwestern Montana (Beaverhead, Deer Lodge, Madison, and Silverbow counties), and northeastern Oregon (Wallowa 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 +
Pennell & D. D. Keck +
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 +  and ventricose-ampliate +
1.8 cm18 mm <br />0.018 m <br /> (2.5 cm25 mm <br />0.025 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 +
Idaho +, Mont. +  and Oreg. +
drupe-like +
600–2700 m. +
curved +  and straight +
1 +  and 4 +
Sandy or gravelly soils, sagebrush shrublands. +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +
terminal +  and axillary +
short-petiolate +, sessile +  and petiolate +
whorled +  and opposite +
persistent +  and deciduous +
basal +  and cauline +
villous +, 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–Jul. +
widely divergent +  and opposite +
navicular-sigmoid +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.19 cm1.9 mm <br />0.0019 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 />) +
Bull. Torrey Bot. Club +
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 />) +
0.4 cm4 mm <br />0.004 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 +
glandular-pubescent +  and hairy +
6 cm60 mm <br />0.06 m <br /> (60 cm600 mm <br />0.6 m <br />) +
glandular-pubescent +  and glabrous +
0.9 cm9 mm <br />0.009 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
papillate +  and smooth +
denticulate +
Penstemon whitedii subsp. tristis +
Penstemon eriantherus var. redactus +
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 +