Penstemon angustifolius var. venosus

(D. D. Keck) N. H. Holmgren

Brittonia 31: 104. 1979.

Endemic
Basionym: Penstemon angustifolius subsp. venosus D. D. Keck J. Wash. Acad. Sci. 29: 490. 1939
Treatment appears in FNA Volume 17. Treatment on page 115. Mentioned on page 114.
Revision as of 18:07, 29 July 2020 by imported>Volume Importer
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Stems 17–65 cm, glabrous. Cauline leaves 5–8 pairs, blade ovate to lanceolate. Thyrses: proximal bracts ovate to lanceolate. Flowers: corolla blue to lavender or pink, 14–17 mm.


Phenology: Flowering Apr–Jun.
Habitat: Sandy soils, blackbrush, sagebrush, and pinyon-juniper woodlands.
Elevation: 1400–2300 m.

Distribution

Ariz., Colo., N.Mex., Utah.

Discussion

Although variety venosus shares many morphologic features with var. caudatus, it generally exhibits more variation in corolla color than var. caudatus, and the varieties are largely allopatric except possibly in north-central New Mexico.

Selected References

None.

Lower Taxa

None.

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

acute +  and acuminate +
Craig C. Freeman +
(D. D. Keck) N. H. Holmgren +
glutinous +
alternate +, opposite +, whorled +, helical +  and subopposite +
not reduced +
tapered;tapered +
Penstemon angustifolius subsp. venosus +
ovate;lanceolate +
not +  and leathery +
ovate;lanceolate +
short-tubular +  and short-campanulate +
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
2.4 cm24 mm <br />0.024 m <br /> (4 cm40 mm <br />0.04 m <br />) +
1.8 cm18 mm <br />0.018 m <br /> (11.3 cm113 mm <br />0.113 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
not personate +  and bilabiate +
2 cm20 mm <br />0.02 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
blue +  and lavender or pink +
glabrous +  and white-pubescent +
tubular-funnelform +
ampliate +
1.4 cm14 mm <br />0.014 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
(2-)4-8(-10)-flowered +
scale-like +  and not needlelike +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Ariz. +, Colo. +, N.Mex. +  and Utah. +
drupe-like +
1400–2300 m. +
curved +  and straight +
1 +  and 4 +
Sandy soils, blackbrush, sagebrush, and pinyon-juniper woodlands. +
golden yellow +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
cauline +  and basal +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
erose +  and entire +
glutinous +
scabrous +  and glabrous +
toothed +  and entire +
reddish purple +  and violet +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
scabrous +  and glabrous +
ascending;erect +
scabrous +  and glabrous +
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
5 +  and 4 +
Flowering Apr–Jun. +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
navicular-sigmoid +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (9.8 cm98 mm <br />0.098 m <br />) +
ovate +  and lanceolate +
0.2 cm2 mm <br />0.002 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
minute +
dark-brown +  and brown +
disciform +, angled-elongate +  and angled +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.54 cm5.4 mm <br />0.0054 m <br />) +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
included +  and exserted +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 1 cm10 mm <br />0.01 m <br /> (?) +
short-petiolate +  and petiolate +
45 cm450 mm <br />0.45 m <br /> (65 cm650 mm <br />0.65 m <br />) +
climbing +  and scrambling +
sprawling +, creeping +  and prostrate +
ascending;erect +
cauline +, proximal +  and basal +
reduced +
17 cm170 mm <br />0.17 m <br /> (65 cm650 mm <br />0.65 m <br />) +
leathery +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
papillate +
denticulate +
Penstemon angustifolius var. venosus +
Penstemon angustifolius +
variety +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
rounded +  and inflated +
not constricted +
interrupted +  and continuous +
30 cm300 mm <br />0.3 m <br /> (37 cm370 mm <br />0.37 m <br />) +
cylindric +
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 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 />) +
short-petiolate +  and sessile +
cauline +  and proximal +