Penstemon caespitosus var. perbrevis

(Pennell) N. H. Holmgren

Brittonia 31: 104. 1979.

Endemic
Basionym: Penstemon caespitosus subsp. perbrevis Pennell Contr. U.S. Natl. Herb. 20: 375. 1920
Treatment appears in FNA Volume 17. Treatment on page 101. Mentioned on page 100.
Revision as of 18:06, 29 July 2020 by imported>Volume Importer
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

Leaves 2.5–14 × 1–4 mm; blade obovate or spatulate. Flowers: pollen-sacs navicular to subexplanate, 0.8–0.9 mm.


Phenology: Flowering May–Aug.
Habitat: Gravelly to clay soils, sagebrush shrublands, pinyon-juniper and pine woodlands.
Elevation: 2100–2900 m.

Discussion

Variety perbrevis occurs in Carbon, Duchesne, Emery, Garfield, Sanpete, Uintah, Utah, and Wasatch counties, Utah, and in Garfield County, Colorado. Some specimens from Rio Blanco County, Colorado, also approach this variety.

Selected References

None.

Lower Taxa

None.

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

rounded +  and acute or mucronate +
Craig C. Freeman +
(Pennell) N. H. Holmgren +
alternate +, opposite +, whorled +, helical +  and subopposite +
tapered +
Penstemon caespitosus subsp. perbrevis +
spatulate;obovate +
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 +
0.65 cm6.5 mm <br />0.0065 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.19 cm1.9 mm <br />0.0019 m <br />) +
lanceolate;linear +
short-tubular +  and short-campanulate +
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1.4 cm14 mm <br />0.014 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
0.25 cm2.5 mm <br />0.0025 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
1.7 cm17 mm <br />0.017 m <br /> (2.1 cm21 mm <br />0.021 m <br />) +
lavender +  and purplish lavender +
yellow-villous +
salverform +  and tubular-funnelform +
ampliate +  and ventricose-ampliate +
1 cm10 mm <br />0.01 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
1-3-flowered +
scale-like +  and not needlelike +
Colo. +  and Utah. +
drupe-like +
2100–2900 m. +
curved +  and straight +
1 +  and 4 +
Gravelly to clay soils, sagebrush shrublands, pinyon-juniper and pine woodlands. +
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 +
not cinereous +
persistent +  and deciduous +
0.25 cm2.5 mm <br />0.0025 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
cauline +, proximal +  and basal +
not leathery +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 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 +
axile +  and parietal +
basal +, apical +  and superior +
tenuinucellate +, unitegmic +  and hemitropous +
campylotropous +, hemianatropous +  and anatropous +
ascending +  and erect +
ascending;erect +
5 +  and 4 +
Flowering May–Aug. +
navicular-sigmoid +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
1.3 cm13 mm <br />0.013 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
0.28 cm2.8 mm <br />0.0028 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.3 cm3 mm <br />0.003 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 />) +
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
included +  and exserted +
0.9 cm9 mm <br />0.009 m <br /> (?) +  and 1.2 cm12 mm <br />0.012 m <br /> (?) +
subalternate +, alternate +, whorled +  and opposite +
climbing +  and scrambling +
decumbent;ascending;decumbent;ascending;erect;prostrate +
not glaucous +, glabrous +  and hairy +
1.3 cm13 mm <br />0.013 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
papillate +
denticulate +
Penstemon caespitosus var. perbrevis +
Penstemon caespitosus +
variety +
0.45 cm4.5 mm <br />0.0045 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
2-ridged +  and inflated +
not constricted +
secund +  and continuous +
cylindric +
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
8 cm80 mm <br />0.08 m <br /> (10 cm100 mm <br />0.1 m <br />) +
not cinereous +
straight +
recurved +  and ascending +
pilose +  and hairy +
0.7 cm7 mm <br />0.007 m <br /> (0.9 cm9 mm <br />0.009 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 +