familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Cristati
speciesPenstemon laricifolius
varietyPenstemon laricifolius var. exilifolius

Penstemon laricifolius var. exilifolius

(A. Nelson) Payson

Univ. Wyoming Publ. Sci., Bot. 1: 97. 1924.

Craig C. Freeman
IllustratedEndemic
Basionym: Penstemon exilifolius A. Nelson Bull. Torrey Bot. Club 28: 230. 1901
Synonyms: P. laricifolius subsp. exilifolius (A. Nelson) D. D. Keck
Treatment appears in FNA Volume 17. Treatment on page 139. Mentioned on page 138.
Please click on the illustration for a higher resolution version.
Illustrator: John Myers

Copyright: Flora of North America Association

Flowers: corolla white, 9–15 mm.


Phenology: Flowering Jun–Aug.
Habitat: Sandy or gravelly grasslands, sagebrush shrublands.
Elevation: 1500–2900 m.

Distribution

Colo., Wyo.

Discussion

Variety exilifolius is concentrated in the Laramie Basin of Wyoming and Laramie River Valley of northwestern Larimer County, Colorado. Other isolated populations are known in Wyoming (B. L. Heidel and J. Handley 2007). A specimen from southern Montana, reported by Heidel and Handley, could be this variety; the specimen has not been seen for this study.

Selected References

Heidel, B. L. and J. Handley. 2007. Penstemon laricifolius Hook. & Arn. Ssp. exilifolius (A. Nels.) D. D. Keck (Larchleaf Beardtongue): A Technical Conservation Assessment. Laramie.

Lower Taxa

None.

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

... more about "Penstemon laricifolius var. exilifolius"
RDF feed
Abaxial lobe quantity
3 +
Adaxial lobe quantity
2 +
Androecium position
hypogynous +
Apex shape
acute +
Author
Craig C. Freeman +
Authority
(A. Nelson) Payson +
Axis pubescence
hairy +  and glabrous +
Basal leaf architecture
simple +
Basal leaf arrangement
alternate +, opposite +, whorled +, helical +  and subopposite +
Base architecture or fixation
clasping +
Base shape
tapered;tapered +
Basionyms
Penstemon exilifolius +
Blade arrangement or course or shape
linear +
Blade shape
pandurate;linear;oblong;linear;oblong;elliptic;lanceolate;oblanceolate;deltate-ovate;ovate +
Blade texture
not +  and leathery +
Bract presence
absent +
Bracteole size
smaller +
Calyx architecture or shape
symmetric +
Calyx lobe length
3.5mm;5.8mm +
Calyx lobe pubescence
glabrous +
Calyx lobe shape
ovate +
Calyx lobe width
1.3mm;2.2mm +
Calyx position relational
not surrounding +
Calyx shape
short-tubular +  and short-campanulate +
Capsule length
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Capsule pubescence
glandular-pubescent +  and glabrous +
Capsule width
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Caudex architecture
rhizomelike +
Caudex growth form or texture
herbaceous +
Caudex texture
woody +
Cauline blade architecture
sessile +
Cauline blade length
1.1 cm11 mm <br />0.011 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Cauline blade quantity
3;7 +
Cauline blade width
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Connective architecture or dehiscence
splitting +
Corolla architecture
not personate +, rarely nearly radially symmetric +  and weakly strongly bilabiate +
Corolla architecture or shape
symmetric +
Corolla coloration
white +
Corolla pubescence
yellow-villous +  and glabrous +
Corolla shape
tubular-funnelform +
Corolla size
ampliate +
Corolla some measurement
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Cyme architecture
2-flowered +  and 1-flowered +
Cyme quantity
2 +  and 1 +
Distal flower pubescence
pilose +
Distal flower some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Distal leaf-blade shape
scale-like +  and not needlelike +
Distribution
Colo. +  and Wyo. +
Drupe shape
drupe-like +
Elevation
1500–2900 m. +
Embryo course
curved +  and straight +
Endosperm presence
absent +
Filament pubescence
glabrous +
Flower quantity
1 +  and 4 +
Flower reproduction
bisexual +
Fruits capsule arrangement
packed +
Fruits capsule dehiscence
septicidal +
Habitat
Sandy or gravelly grasslands, sagebrush shrublands. +
Hair coloration
yellow-orange +  and yellow +
Hair some measurement
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Hair texture
membranous +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Inflorescence position
terminal +  and axillary +
Inflorescence position or structure subtype
terminal +
Lateral branch architecture
cymose +
Leaf architecture
short-petiolate +, sessile +  and petiolate +
Leaf arrangement
whorled +  and opposite +
Leaf duration
persistent +  and deciduous +
Leaf position
basal +  and cauline +
Leaf pubescence
puberulent +  and glabrous +
Leaf texture
not leathery +
Lobe quantity
5 (?) +
Lobe shape
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
Margin architecture or relief
erose +
Margin architecture or shape
entire +
Margin pubescence
glabrous +, puberulent +, hairy +, scabrous +, glandular-villous +  and glandular-pubescent +
Margin shape
toothed +  and entire +
Margin texture
scarious +  and herbaceous +
Number of lower taxa
0 +
Ovary architecture or structure in adjective form
2-locular +
Ovary arrangement
axile +  and parietal +
Ovary placentation
axile +
Ovary position
basal +, apical +  and superior +
Ovule architecture
tenuinucellate +, unitegmic +  and hemitropous +
Ovule orientation
campylotropous +, hemianatropous +  and anatropous +
Panicle architecture
spiciform +
Pedicel orientation
ascending +  and erect +
Pedicel presence
absent +
Pedicel pubescence
puberulent +  and glabrous +
Peduncle orientation
ascending;erect +
Peduncle pubescence
puberulent +  and glabrous +
Perianth position
hypogynous +
Petal fusion
connate +
Petal presence
absent +
Petal quantity
5 +  and 4 +
Petiole presence
absent +
Phenology
Flowering Jun–Aug. +
Pistil architecture
2-carpellate +
Pistil quantity
1 +
Pollen-sac architecture or shape
saccate +
Pollen-sac arrangement
opposite +
Pollen-sac course or shape
navicular-sigmoid +
Pollen-sac dehiscence
dehiscing +
Pollen-sac distance
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Pollen-sac orientation
explanate +
Pollen-sac position
proximal +
Pollen-sac quantity
1/5 +  and 1/2 +
Pollen-sac shape
navicular +
Proximal bract arrangement or course or shape
linear +
Proximal bract length
1 cm10 mm <br />0.01 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Proximal bract width
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Publication title
Univ. Wyoming Publ. Sci., Bot. +
Publication year
1924 +
Reference
heidel2007a +
Rim presence
absent +
Rim size
minute +
Seed atypical quantity
40 (100) +
Seed coloration
black +, dark-brown +  and brown +
Seed quantity
5;40 +
Seed shape
angled +  and reniform or slightly rounded +
Seed some measurement
0.15 cm1.5 mm <br />0.0015 m <br /> (0.48 cm4.8 mm <br />0.0048 m <br />) +
Sepal atypical quantity
2 (4) +
Sepal fusion
connate +
Sepal quantity
5 +
Side pubescence
glabrous +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V17/V17 357.xml +
Special status
Illustrated +  and Endemic +
Species growth form
shrubby +
Stamen architecture
didynamous +
Stamen atypical quantity
1 (3) +
Stamen fusion
adnate +
Stamen length or size
longer +
Stamen position
included +
Stamen quantity
4 +
Staminode diameter
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.07 cm0.7 mm <br />7.0e-4 m <br />) +
Staminode position
reaching orifice +  and included +
Staminode presence
absent +
Staminode quantity
1 +
Staminode shape
flattened +
Staminode some measurement
0.7 cm7 mm <br />0.007 m <br /> (?) +  and 1.1 cm11 mm <br />0.011 m <br /> (?) +
Staminode variability
equal +
Stem architecture or function or pubescence
glandular +
Stem arrangement
subalternate +, alternate +, whorled +  and opposite +
Stem growth form
climbing +  and scrambling +
Stem growth form or orientation
sprawling +, creeping +  and prostrate +
Stem orientation
erect +
Stem position
basal +
Stem presence
absent +
Stem pubescence
puberulent +  and glabrous +
Stem some measurement
10 cm100 mm <br />0.1 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Stigma architecture or shape
capitate +
Stigma quantity
1 +
Stipule presence
absent +
Style atypical quantity
0 (?) +
Style pubescence
glandular-pubescent +  and glabrous +
Style quantity
1 +
Style some measurement
0.9 cm9 mm <br />0.009 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Suture architecture or pubescence or relief
smooth +
Suture relief
papillate +
Suture shape
denticulate +
Synonyms
P. laricifolius subsp. exilifolius +
Taxon family
Plantaginaceae +
Taxon name
Penstemon laricifolius var. exilifolius +
Taxon parent
Penstemon laricifolius +
Taxon rank
variety +
Throat diameter
0.5 cm5 mm <br />0.005 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Throat shape
rounded +  and inflated +
Throat size
not constricted +
Thyrse architecture
interrupted +  and continuous +
Thyrse shape
cylindric +
Thyrse some measurement
3 cm30 mm <br />0.03 m <br /> (15 cm150 mm <br />0.15 m <br />) +
Tip architecture
coiled +
Tip course
straight +
Tip orientation
recurved +
Tube base shape
gibbous +  and not spurred +
Tube some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Verticillaster quantity
3 (7) +
Volume
Volume 17 +
Whole-organism architecture
sessile +
Whole-organism position
cauline +  and proximal +
Whole organism architecture
acaulescent +  and caulescent +
Whole organism duration
perennial +
Whole organism growth form
plant +  and cespitose +
Whole organism nutrition
autotrophic +
Whole organism texture
fleshy +
Wing presence
absent +
Wing quantity
8 +
Wing size or width
narrow +