familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Caespitosi
speciesPenstemon crandallii
varietyPenstemon crandallii var. atratus

Penstemon crandallii var. atratus

(D. D. Keck) N. H. Holmgren

Brittonia 31: 105. 1979.

Craig C. Freeman
Endemic
Basionym: Penstemon crandallii subsp. atratus D. D. Keck Bull. Torrey Bot. Club 64: 370. 1937
Treatment appears in FNA Volume 17. Treatment on page 102.

Stems decumbent to ascending, 2–8 cm, retrorsely hairy or puberulent. Leaves ± scabrous, 7–23 × 2–5 mm; blade obovate or oblanceolate. 2n = 16.


Phenology: Flowering May–Jul.
Habitat: Sagebrush shrublands, pinyon-juniper and scrub oak woodlands.
Elevation: 2100–2600 m.

Distribution

Utah.

Discussion

Variety atratus apparently is limited to the La Sal Mountains of Grand County. N. H. Holmgren (1984) stated that some specimens of var. crandallii from the Abajo Mountains of San Juan County, Utah, approach var. atratus in leaf indument. Within populations of var. atratus, leaf indument varies from densely to sparsely puberulent.

Selected References

None.

Lower Taxa

None.

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

... more about "Penstemon crandallii var. atratus"
RDF feed
2n chromosome quantity
16 +
Abaxial lobe quantity
3 +
Adaxial lobe quantity
2 +
Androecium position
hypogynous +
Apex pubescence
puberulent +
Apex shape
acuminate +  and caudate +
Author
Craig C. Freeman +
Authority
(D. D. Keck) N. H. Holmgren +
Axis pubescence
hairy +
Basal leaf architecture
simple +
Basal leaf arrangement
alternate +, opposite +, whorled +, helical +  and subopposite +
Base shape
tapered +
Basionyms
Penstemon crandallii subsp. atratus +
Blade arrangement or course or shape
linear +
Blade arrangement or shape
elliptic +
Blade shape
oblanceolate;obovate +
Blade texture
not +  and leathery +
Bract presence
absent +
Bracteole size
smaller +
Calyx-tube distance
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Calyx architecture or shape
symmetric +
Calyx lobe architecture
scarious-margined +
Calyx lobe atypical length
0.7 cm7 mm <br />0.007 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
Calyx lobe atypical width
0.18 cm1.8 mm <br />0.0018 m <br /> (0.22 cm2.2 mm <br />0.0022 m <br />) +
Calyx lobe length
4mm;7mm +
Calyx lobe shape
lanceolate +
Calyx lobe width
0.9mm;1.8mm +
Calyx position relational
not surrounding +
Calyx shape
short-tubular +  and short-campanulate +
Capsule length
0.7 cm7 mm <br />0.007 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Capsule pubescence
glabrous +
Capsule width
0.35 cm3.5 mm <br />0.0035 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Caudex architecture
rhizomelike +
Caudex growth form or texture
herbaceous +
Caudex texture
woody +
Cauline leaf architecture
petiolate +
Cauline leaf atypical length
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Cauline leaf length
0.4 cm4 mm <br />0.004 m <br /> (4.7 cm47 mm <br />0.047 m <br />) +
Cauline leaf quantity
2 (4) +
Cauline leaf width
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Connective architecture or dehiscence
splitting +
Corolla architecture
lined +
Corolla architecture or shape
symmetric +
Corolla coloration
blue +  and violet or lavender +
Corolla pubescence
yellow-pilose +  and yellow-lanate +
Corolla shape
salverform +  and tubular-funnelform +
Corolla size
ampliate +  and ventricose-ampliate +
Corolla some measurement
1.4 cm14 mm <br />0.014 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Cyme architecture
1-4-flowered +
Cyme quantity
2 +  and 1 +
Distal flower pubescence
hairy +
Distal leaf-blade shape
scale-like +  and not needlelike +
Distribution
Utah. +
Drupe shape
drupe-like +
Elevation
2100–2600 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
Sagebrush shrublands, pinyon-juniper and scrub oak woodlands. +
Hair coloration
golden yellow +
Hair pubescence
glandular-pubescent +
Hair shape
pointed +
Hair some measurement
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Hair texture
membranous +
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
petiolate +
Leaf arrangement
opposite +
Leaf duration
persistent +  and deciduous +
Leaf length
0.7 cm7 mm <br />0.007 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
Leaf position
cauline +, proximal +  and basal +
Leaf pubescence
pubescent +, scabrous +, glabrate +  and glabrous +
Leaf pubescence or relief
scabrous +
Leaf texture
not leathery +
Leaf width
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
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 shape
entire +
Margin pubescence
glabrate +, hairy +  and glandular-pubescent +
Margin shape
toothed +  and entire +
Margin texture
herbaceous +  and 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
glandular-pubescent +  and hairy +
Peduncle orientation
ascending;erect +
Peduncle pubescence
glandular-pubescent +  and hairy +
Perianth position
hypogynous +
Petal fusion
connate +
Petal presence
absent +
Petal quantity
5 +  and 4 +
Petiole presence
absent +
Phenology
Flowering May–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 orientation
explanate +
Pollen-sac shape
navicular +
Proximal bract length
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Proximal bract shape
oblanceolate +  and linear +
Proximal bract width
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Publication title
Brittonia +
Publication year
1979 +
Reference
None +
Rim presence
absent +
Rim size
minute +
Seed atypical quantity
40 (100) +
Seed coloration
dark-brown +  and black +
Seed quantity
5;40 +
Seed shape
angled +  and rounded +
Seed some measurement
0.11 cm1.1 mm <br />0.0011 m <br /> (0.21 cm2.1 mm <br />0.0021 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 272.xml +
Special status
Endemic +
Species growth form
shrubby +
Stamen architecture
didynamous +
Stamen atypical quantity
1 (3) +
Stamen fusion
adnate +
Stamen length or size
longer +
Stamen position
included +  and exserted +
Stamen quantity
4 +
Staminode diameter
0.03 cm0.3 mm <br />3.0e-4 m <br /> (0.04 cm0.4 mm <br />4.0e-4 m <br />) +
Staminode position
exserted +
Staminode presence
absent +
Staminode quantity
1 +
Staminode shape
flattened +
Staminode some measurement
1.1 cm11 mm <br />0.011 m <br /> (?) +  and 1.4 cm14 mm <br />0.014 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
prostrate +
Stem orientation
decumbent;ascending +
Stem position
basal +
Stem presence
absent +
Stem pubescence
puberulent +  and hairy +
Stem some measurement
2 cm20 mm <br />0.02 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Stigma architecture or shape
capitate +
Stigma quantity
1 +
Stipule presence
absent +
Style atypical quantity
0 (?) +
Style pubescence
glabrous +
Style quantity
1 +
Style some measurement
1.3 cm13 mm <br />0.013 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Suture architecture or pubescence or relief
smooth +
Suture relief
papillate +
Suture shape
denticulate +
Taxon family
Plantaginaceae +
Taxon name
Penstemon crandallii var. atratus +
Taxon parent
Penstemon crandallii +
Taxon rank
variety +
Throat diameter
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Throat shape
2-ridged +  and inflated +
Throat size
not constricted +
Thyrse architecture
secund +  and continuous +
Thyrse atypical some measurement
8 cm80 mm <br />0.08 m <br /> (16 cm160 mm <br />0.16 m <br />) +
Thyrse shape
cylindric +
Thyrse some measurement
1 cm10 mm <br />0.01 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Tip course
straight +
Tip orientation
recurved +
Tip position or shape
distal +
Tip pubescence
pilose +
Tip some measurement
0.7 cm7 mm <br />0.007 m <br /> (1 cm10 mm <br />0.01 m <br />) +
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 quantity
2 (8) +
Volume
Volume 17 +
Whole organism duration
perennial +
Whole organism growth form
subshrub +  and cespitose +
Whole organism nutrition
autotrophic +
Whole organism texture
fleshy +
Wing presence
absent +
Wing quantity
8 +
Wing size or width
narrow +