familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Coerulei
speciesPenstemon angustifolius
varietyPenstemon angustifolius var. caudatus

Penstemon angustifolius var. caudatus

(A. Heller) Rydberg

Bull. Torrey Bot. Club 33: 151. 1906.

Craig C. Freeman
IllustratedEndemic
Basionym: Penstemon caudatus A. Heller Minnesota Bot. Stud. 2: 34. 1898
Treatment appears in FNA Volume 17. Treatment on page 115. Mentioned on page 114.
Please click on the illustration for a higher resolution version.
Illustrator: John Myers

Copyright: Flora of North America Association

Stems (10–) 15–60 (–65) cm, glabrous, rarely scabrous. Cauline leaves 3–8 pairs, blade ovate to lanceolate. Thyrses: proximal bracts ovate to lanceolate. Flowers: corolla blue, rarely lavender or pink, 13–20 (–22) mm. 2n = 16.


Phenology: Flowering May–Jun.
Habitat: Sandy or gravelly soils, shortgrass prairies, sagebrush shrublands.
Elevation: 1200–2600 m.

Distribution

Colo., Kans., Nebr., N.Mex., Okla., S.Dak., Wyo.

Discussion

Variety caudatus is known from the southwestern Great Plains. While mostly distinct in the southern and central parts of its range, the variety passes into var. angustifolius in northeastern Colorado and western Nebraska.

Selected References

None.

Lower Taxa

None.

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

... more about "Penstemon angustifolius var. caudatus"
RDF feed
2n chromosome quantity
16 +
Abaxial lobe quantity
3 +
Adaxial lobe quantity
2 +
Androecium position
hypogynous +
Apex shape
acute +  and acuminate +
Author
Craig C. Freeman +
Authority
(A. Heller) Rydberg +
Axis coating
glutinous +
Axis pubescence
glabrous +
Axis pubescence or relief
scabrous +
Basal leaf architecture
simple +
Basal leaf arrangement
alternate +, opposite +, whorled +, helical +  and subopposite +
Basal stem position
basal +
Basal stem pubescence
glabrous +
Basal stem pubescence or relief
scabrous +
Basal stem size
not reduced +
Base architecture or fixation
cordate-clasping +
Base shape
tapered;tapered +
Basionyms
Penstemon caudatus +
Blade arrangement or shape
elliptic +
Blade shape
ovate;lanceolate +
Blade texture
not +  and leathery +
Bract presence
absent +
Bracteole size
smaller +
Calyx architecture or shape
symmetric +
Calyx lobe length
4mm;8mm +
Calyx lobe shape
ovate;lanceolate +
Calyx lobe width
1mm;2.5mm +
Calyx position relational
not surrounding +
Calyx shape
short-tubular +  and short-campanulate +
Capsule length
0.9 cm9 mm <br />0.009 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Capsule pubescence
glabrous +
Capsule width
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Caudex architecture
rhizomelike +
Caudex growth form or texture
herbaceous +
Caudex texture
woody +
Cauline blade architecture
sessile +
Cauline blade atypical width
2.4 cm24 mm <br />0.024 m <br /> (4 cm40 mm <br />0.04 m <br />) +
Cauline blade length
1.8 cm18 mm <br />0.018 m <br /> (11.3 cm113 mm <br />0.113 m <br />) +
Cauline blade quantity
2;8 +
Cauline blade width
0.2 cm2 mm <br />0.002 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
Cauline leaf quantity
3 (8) +
Connective architecture or dehiscence
splitting +
Corolla architecture
not personate +  and bilabiate +
Corolla architecture or shape
symmetric +
Corolla atypical some measurement
2 cm20 mm <br />0.02 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
Corolla coloration
pink +, lavender +  and blue +
Corolla pubescence
glabrous +  and white-pubescent +
Corolla shape
tubular-funnelform +
Corolla size
ampliate +
Corolla some measurement
1.3 cm13 mm <br />0.013 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Cyme architecture
(2-)4-8(-10)-flowered +
Cyme quantity
2 +
Distal flower pubescence
hairy +
Distal leaf-blade shape
scale-like +  and not needlelike +
Distal part pubescence
villous +
Distal part some measurement
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Distribution
Colo. +, Kans. +, Nebr. +, N.Mex. +, Okla. +, S.Dak. +  and Wyo. +
Drupe shape
drupe-like +
Elevation
1200–2600 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 soils, shortgrass prairies, sagebrush shrublands. +
Hair coloration
golden yellow +
Hair pubescence
glabrous +
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 duration
persistent +  and deciduous +
Leaf position
cauline +  and basal +
Lobe quantity
5 (?) +
Lobe shape
orbiculate;linear;orbiculate;linear;truncate;oblanceolate;obovate;oblong;elliptic;round;lanceolate;ovate +
Margin architecture
erose +  and entire +
Margin architecture or function or pubescence
glandular +
Margin architecture or shape
entire +
Margin coating
glutinous +
Margin pubescence
scabrous +  and glabrous +
Margin pubescence or relief
scabrous +
Margin shape
toothed +  and entire +
Margin texture
scarious +
Nectar guide coloration
reddish purple +  and violet +
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
scabrous +  and glabrous +
Peduncle orientation
ascending;erect +
Peduncle pubescence
scabrous +  and glabrous +
Peduncle some measurement
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Perianth position
hypogynous +
Petal fusion
connate +
Petal presence
absent +
Petal quantity
5 +  and 4 +
Petiole presence
absent +
Phenology
Flowering May–Jun. +
Pistil architecture
2-carpellate +
Pistil quantity
1 +
Pollen-sac architecture or shape
saccate +
Pollen-sac arrangement
opposite +
Pollen-sac atypical distance
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.11 cm1.1 mm <br />0.0011 m <br />) +
Pollen-sac course or shape
navicular-sigmoid +
Pollen-sac dehiscence
dehiscing +
Pollen-sac distance
0.11 cm1.1 mm <br />0.0011 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Pollen-sac orientation
explanate +
Pollen-sac shape
navicular +
Proximal bract atypical length
0.3 cm3 mm <br />0.003 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Proximal bract atypical width
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
Proximal bract length
1.2 cm12 mm <br />0.012 m <br /> (9.8 cm98 mm <br />0.098 m <br />) +
Proximal bract shape
ovate +  and lanceolate +
Proximal bract width
0.2 cm2 mm <br />0.002 m <br /> (2.8 cm28 mm <br />0.028 m <br />) +
Publication title
Bull. Torrey Bot. Club +
Publication year
1906 +
Reference
None +
Rim presence
absent +
Rim size
minute +
Seed atypical quantity
40 (100) +
Seed coloration
dark-brown +  and brown +
Seed quantity
5;40 +
Seed shape
disciform +, angled-elongate +  and angled +
Seed some measurement
0.18 cm1.8 mm <br />0.0018 m <br /> (0.54 cm5.4 mm <br />0.0054 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 297.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
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Staminode position
included +  and exserted +
Staminode presence
absent +
Staminode quantity
1 +
Staminode shape
flattened +
Staminode some measurement
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 1 cm10 mm <br />0.01 m <br /> (?) +
Staminode variability
equal +
Stem architecture
short-petiolate +  and petiolate +
Stem architecture or function or pubescence
glandular +
Stem arrangement
opposite +
Stem atypical some measurement
60 cm600 mm <br />0.6 m <br /> (65 cm650 mm <br />0.65 m <br />) +
Stem growth form
climbing +  and scrambling +
Stem growth form or orientation
sprawling +, creeping +  and prostrate +
Stem orientation
ascending;erect +
Stem position
cauline +, proximal +  and basal +
Stem presence
absent +
Stem pubescence
glabrous +
Stem pubescence or relief
scabrous +
Stem size
reduced +
Stem some measurement
15 cm150 mm <br />0.15 m <br /> (60 cm600 mm <br />0.6 m <br />) +
Stem texture
leathery +
Stigma architecture or shape
capitate +
Stigma quantity
1 +
Stipule presence
absent +
Style atypical quantity
0 (?) +
Style pubescence
glabrous +
Style quantity
1 +
Style some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Suture architecture or pubescence or relief
smooth +
Suture relief
papillate +
Suture shape
denticulate +
Taxon family
Plantaginaceae +
Taxon name
Penstemon angustifolius var. caudatus +
Taxon parent
Penstemon angustifolius +
Taxon rank
variety +
Throat diameter
0.4 cm4 mm <br />0.004 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 atypical some measurement
30 cm300 mm <br />0.3 m <br /> (37 cm370 mm <br />0.37 m <br />) +
Thyrse shape
cylindric +
Thyrse some measurement
5 cm50 mm <br />0.05 m <br /> (30 cm300 mm <br />0.3 m <br />) +
Tip architecture
coiled +
Tip course
straight +
Tip orientation
recurved +
Tube base shape
gibbous +  and not spurred +
Tube some measurement
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Verticillaster atypical quantity
15 (26) +
Verticillaster quantity
5 (15) +
Volume
Volume 17 +
Whole-organism architecture
short-petiolate +  and sessile +
Whole-organism position
cauline +  and proximal +
Whole organism duration
perennial +
Whole organism growth form
herb +
Whole organism nutrition
autotrophic +
Whole organism texture
fleshy +
Wing presence
absent +
Wing quantity
8 +
Wing size or width
narrow +