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

Penstemon triflorus var. triflorus

Craig C. Freeman
IllustratedEndemic
Synonyms: Penstemon helleri Small
Treatment appears in FNA Volume 17. Treatment on page 143. Mentioned on page 139.
Please click on the illustration for a higher resolution version.
Illustrator: John Myers

Copyright: Flora of North America Association

Cauline leaves: blade ovate to lanceolate, margins sharply serrate. Flowers: calyx lobes 8–13 × 3–4.8 mm; corolla 30–35 mm.


Phenology: Flowering Mar–Jun(–Jul).
Habitat: Limestone prairies and bluffs.
Elevation: 200–600 m.

Distribution

Tex.

Discussion

Variety triflorus has been documented in Bandera, Bexar, Brown, Burnet, Coleman, Gillespie, Hays, Kendall, Kerr, Real, Runnels, Schleicher, Sutton, and Uvalde counties. Plants with white or pale pink corollas, relatively short peduncles and pedicels, more continuous inflorescences, and broader leaf bases have been called Penstemon helleri.

Selected References

None.

Lower Taxa

None.

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

... more about "Penstemon triflorus var. triflorus"
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Abaxial lobe quantity
3 +
Adaxial lobe quantity
2 +
Androecium position
hypogynous +
Apex shape
acute +  and obtuse +
Author
Craig C. Freeman +
Authority
A. Heller +
Axis pubescence
glandular-pubescent +
Basal leaf architecture
simple +
Basal leaf arrangement
alternate +, opposite +, whorled +, helical +  and subopposite +
Basal midvein life cycle
withering +
Basal midvein position
basal +
Basal midvein presence
absent +
Basal midvein pubescence
hairy +  and glabrous +
Basal midvein texture
Not leathery (More or less leathery) +
Base architecture or fixation
clasping +
Base shape
tapered;cordate +
Basionyms
Penstemon +
Blade shape
ovate;lanceolate +
Blade texture
not +  and leathery +
Bract presence
absent +
Bracteole size
smaller +
Calyx architecture or shape
symmetric +
Calyx lobe length
8mm;13mm +
Calyx lobe pubescence
glandular-pubescent +
Calyx lobe shape
ovate;lanceolate +
Calyx lobe width
3mm;4.8mm +
Calyx position relational
not surrounding +
Calyx shape
short-tubular +  and short-campanulate +
Capsule atypical length
0.7 cm7 mm <br />0.007 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Capsule length
1.1 cm11 mm <br />0.011 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
Capsule pubescence
glandular-pubescent +  and glabrous +
Capsule width
0.5 cm5 mm <br />0.005 m <br /> (0.85 cm8.5 mm <br />0.0085 m <br />) +
Caudex architecture
rhizomelike +
Caudex growth form or texture
herbaceous +
Caudex texture
woody +
Cauline blade architecture
sessile +
Cauline blade atypical length
9.5 cm95 mm <br />0.095 m <br /> (11.5 cm115 mm <br />0.115 m <br />) +
Cauline blade atypical quantity
8 (10) +
Cauline blade length
3 cm30 mm <br />0.03 m <br /> (9.5 cm95 mm <br />0.095 m <br />) +
Cauline blade quantity
6;8 +
Cauline blade width
0.7 cm7 mm <br />0.007 m <br /> (3 cm30 mm <br />0.03 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
pink +  and pinkish red or reddish violet +
Corolla pubescence
glandular-pubescent +
Corolla shape
ventricose +
Corolla size
ampliate +
Corolla some measurement
3 cm30 mm <br />0.03 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Cyme architecture
2-4(-6)-flowered +
Cyme quantity
2 +
Distal flower pubescence
hairy +
Distal leaf-blade shape
scale-like +  and not needlelike +
Distribution
Tex. +
Drupe shape
drupe-like +
Elevation
200–600 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
Limestone prairies and bluffs. +
Hair coloration
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
, +, cauline +  and basal +
Leaf pubescence
not glaucous +, glandular-villous +, villous +, pubescent +, glandular-pubescent +, hairy +, scabrous +, glabrate +  and glabrous +
Leaf texture
not +  and 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
serrate +
Margin pubescence
glabrous +, puberulent +, hairy +, scabrous +, glandular-villous +  and glandular-pubescent +
Margin shape
toothed +  and entire +
Margin texture
scarious +  and herbaceous +
Nectar guide coloration
crimson +  and red +
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
glandular-pubescent +
Peduncle orientation
ascending;erect +
Peduncle pubescence
glandular-pubescent +
Perianth position
hypogynous +
Petal fusion
connate +
Petal presence
absent +
Petal quantity
5 +  and 4 +
Petiole presence
absent +
Phenology
Flowering Mar–Jun(–Jul). +
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
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.12 cm1.2 mm <br />0.0012 m <br />) +
Pollen-sac orientation
explanate +
Pollen-sac position
proximal +
Pollen-sac quantity
1/5 +  and 1/2 +
Pollen-sac shape
navicular +
Proximal bract length
1.4 cm14 mm <br />0.014 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Proximal bract shape
ovate +  and lanceolate +
Proximal bract width
0.6 cm6 mm <br />0.006 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
Publication title
Contr. Herb. Franklin Marshall Coll. +
Publication year
1895 +
Reference
None +
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 367.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
exserted +
Stamen quantity
4 +
Staminode diameter
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.06 cm0.6 mm <br />6.0e-4 m <br />) +
Staminode position
reaching orifice +  and included +
Staminode presence
absent +
Staminode quantity
1 +
Staminode shape
flattened +
Staminode some measurement
1.7 cm17 mm <br />0.017 m <br /> (?) +  and 2 cm20 mm <br />0.02 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
hairy +
Stem some measurement
30 cm300 mm <br />0.3 m <br /> (65 cm650 mm <br />0.65 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
1.8 cm18 mm <br />0.018 m <br /> (2.4 cm24 mm <br />0.024 m <br />) +
Suture architecture or pubescence or relief
smooth +
Suture relief
papillate +  and smooth +
Suture shape
denticulate +
Synonyms
Penstemon helleri +
Taxon family
Plantaginaceae +
Taxon name
Penstemon triflorus var. triflorus +
Taxon parent
Penstemon triflorus +
Taxon rank
variety +
Throat diameter
1 cm10 mm <br />0.01 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Throat shape
rounded +  and inflated +
Throat size
not constricted +
Thyrse architecture
interrupted +
Thyrse shape
cylindric +
Thyrse some measurement
5 cm50 mm <br />0.05 m <br /> (20 cm200 mm <br />0.2 m <br />) +
Tip architecture
coiled +
Tip course
straight +
Tip orientation
recurved +
Tip position or shape
distal +
Tip pubescence
pilose +
Tip some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
Tube base shape
gibbous +  and not spurred +
Tube some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Verticillaster atypical quantity
3 (4) +
Verticillaster quantity
4 (6) +
Volume
Volume 17 +
Whole-organism architecture
petiolate +
Whole-organism position
cauline +  and proximal +
Whole organism architecture
acaulescent +  and caulescent +
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 +