Penstemon crandallii var. procumbens

(Greene) C. C. Freeman

PhytoKeys 80: 34. 2017.

Endemic
Basionym: Penstemon procumbens Greene Pl. Baker. 3: 23. 1901
Synonyms: P. crandallii subsp. procumbens (Greene) D. D. Keck
Treatment appears in FNA Volume 17. Treatment on page 103. Mentioned on page 102.

Stems prostrate or decumbent, 2–18 cm, retrorsely hairy. Leaves glabrous or sparsely puberulent, especially along margins, (2–) 4–24 × 2–8 mm; blade obovate to elliptic.


Phenology: Flowering Jun–Jul.
Habitat: Sagebrush shrublands, scrub oak woodlands, spruce woodlands, talus slopes.
Elevation: 2000–3400 m.

Discussion

Specimens referable to var. procumbens come from Carbon Peak, Kebler Pass, and West Elk Mountains. D. D. Keck (1937) noted the strong resemblance of the type specimen to Penstemon caespitosus subsp. suffruticosus A. Gray (= P. xylus). More material is needed to determine where var. procumbens fits in the P. crandallii/P. caespitosus complex.

Selected References

None.

Lower Taxa

None.

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

puberulent +
acuminate +  and caudate +
Craig C. Freeman +
(Greene) C. C. Freeman +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered +
Penstemon procumbens +
obovate;elliptic +
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 /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
0.9mm;1.8mm +
short-tubular +  and short-campanulate +
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.4 cm4 mm <br />0.004 m <br /> (4.7 cm47 mm <br />0.047 m <br />) +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
blue +  and violet or lavender +
yellow-pilose +  and yellow-lanate +
salverform +  and tubular-funnelform +
ampliate +  and ventricose-ampliate +
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
1-4-flowered +
2 +  and 1 +
scale-like +  and not needlelike +
drupe-like +
2000–3400 m. +
curved +  and straight +
1 +  and 4 +
Sagebrush shrublands, scrub oak woodlands, spruce woodlands, talus slopes. +
golden yellow +
glandular-pubescent +
pointed +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
membranous +
terminal +  and axillary +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
persistent +  and deciduous +
0.4 cm4 mm <br />0.004 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
cauline +, proximal +  and basal +
puberulent +  and glabrous +
not leathery +
0.2 cm2 mm <br />0.002 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
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 +
reddish purple +  and violet +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
glandular-pubescent +  and hairy +
ascending;erect +
glandular-pubescent +  and hairy +
5 +  and 4 +
Flowering Jun–Jul. +
navicular-sigmoid +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
oblanceolate +  and linear +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
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 />) +
included +  and exserted +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
1.1 cm11 mm <br />0.011 m <br /> (?) +  and 1.4 cm14 mm <br />0.014 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
climbing +  and scrambling +
decumbent +  and prostrate +
erect;ascending;erect;ascending;decumbent +
2 cm20 mm <br />0.02 m <br /> (18 cm180 mm <br />0.18 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
papillate +
denticulate +
P. crandallii subsp. procumbens +
Penstemon crandallii var. procumbens +
Penstemon crandallii +
variety +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
2-ridged +  and inflated +
not constricted +
secund +  and continuous +
8 cm80 mm <br />0.08 m <br /> (16 cm160 mm <br />0.16 m <br />) +
cylindric +
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
straight +
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
gibbous +  and not spurred +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
subshrub +  and cespitose +