Penstemon linarioides var. linarioides

Endemic
Synonyms: Penstemon linarioides subsp. compactifolius D. D. Keck
Treatment appears in FNA Volume 17. Treatment on page 104. Mentioned on page 105.

Stems 10–50 cm. Leaves sparsely to densely retrorsely hairy, hairs appressed, white, scalelike, cauline 4–26 × 0.5–1.5 mm, blade linear. Flowers: staminode: distal 3–5 mm densely pilose, hairs golden yellow or yellow, to 1 mm, rest of distal 1–4 mm sparsely to moderately pilose. 2n = 16.


Phenology: Flowering Jun–Aug.
Habitat: Rocky slopes, sagebrush shrublands, pinyon-juniper woodlands.
Elevation: 1400–2900 m.

Discussion

Variety linarioides is known from Arizona (Apache, Cochise, Coconino, Gila, Graham, Greenlee, Navajo, and Yavapai counties) and western New Mexico (Cibola, Doña Ana, Grant, Hidalgo, Luna, McKinley, and Socorro counties). I. Méndez Larios and J. L. Villaseñor Ríos (2001) listed Penstemon linarioides for Baja California and Sonora, Mexico. D. D. Keck (1937) named plants with more compact, heathlike leaves, ascending stems, and decumbent rootstocks as subsp. compactifolius; he stated the subspecies was limited to the vicinity of Flagstaff and intergraded with both subsp. sileri and var. viridis D. D. Keck. Plants with leaves similar to subsp. compactifolius are encountered elsewhere and appear to be a confluent phenotypic expression of var. linarioides.

Selected References

None.

Lower Taxa

None.

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

glandular-pubescent +
acute +  and acuminate +
Craig C. Freeman +
A. Gray in W. H. Emory +
glandular-pubescent +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered;truncate +
Penstemon +
oblanceolate;lanceolate or linear +
not +  and leathery +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
scarious-margined +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
lanceolate;ovate +
short-tubular +  and short-campanulate +
0.5 cm5 mm <br />0.005 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
sessile +  and petiolate +
0.4 cm4 mm <br />0.004 m <br /> (2.6 cm26 mm <br />0.026 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
yellowish +, white +, lavender +  and blue +
salverform +  and tubular-funnelform +
ventricose-ampliate +
1.6 cm16 mm <br />0.016 m <br /> (2 cm20 mm <br />0.02 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
scale-like +  and not needlelike +
Ariz. +  and N.Mex. +
drupe-like +
1400–2900 m. +
curved +  and straight +
yellow +  and golden yellow +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1 +  and 4 +
Rocky slopes, sagebrush shrublands, pinyon-juniper woodlands. +
glabrous or +  and sparsely moderately pilose +
scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
membranous +
terminal +  and axillary +
persistent +  and deciduous +
cauline +, proximal +  and basal +
not leathery +
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
erose +  and entire +
glabrate +, hairy +  and glandular-pubescent +
toothed +  and entire +
herbaceous +  and scarious +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
ascending;erect +
5 +  and 4 +
Flowering Jun–Aug. +
navicular-sigmoid +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.13 cm1.3 mm <br />0.0013 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
lanceolate +  and linear +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Rep. U.S. Mex. Bound. +
minute +
dark-brown +  and black +
angled +  and rounded +
0.11 cm1.1 mm <br />0.0011 m <br /> (0.21 cm2.1 mm <br />0.0021 m <br />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
0.6 cm6 mm <br />0.006 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 +
10 cm100 mm <br />0.1 m <br /> (50 cm500 mm <br />0.5 m <br />) +
1 cm10 mm <br />0.01 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
papillate +
denticulate +
Penstemon linarioides subsp. compactifolius +
Penstemon linarioides var. linarioides +
Penstemon linarioides +
variety +
0.55 cm5.5 mm <br />0.0055 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2-ridged +  and inflated +
not constricted +
secund +, interrupted +  and continuous +
cylindric +
3 cm30 mm <br />0.03 m <br /> (17 cm170 mm <br />0.17 m <br />) +
straight +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
gibbous +  and not spurred +
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
subshrub +  and cespitose +