familyPlantaginaceae
genusPenstemon
subgenusPenstemon subg. Penstemon
sectionPenstemon sect. Penstemon
speciesPenstemon watsonii

Penstemon watsonii

A. Gray in A. Gray et al.

Syn. Fl. N. Amer. 2(1): 267. 1878.

Craig C. Freeman
Common names: Watson’s beardtongue
Endemic
Treatment appears in FNA Volume 17. Treatment on page 226. Mentioned on page 187, 219, 227.

Herbs. Stems ascending to erect, 25–60 cm, glabrous or sparsely puberulent, not glaucous. Leaves essentially cauline, basal absent or poorly developed, not leathery, glabrous or puberulent; cauline 4–8 pairs, short-petiolate or sessile, 30–70 (–80) × 8–18 (–35) mm, blade oblanceolate to lanceolate, base tapered or clasping, margins entire, apex obtuse to acute. Thyrses continuous or interrupted, cylindric, (1.5–) 5–16 cm, axis ± retrorsely hairy, verticillasters 2–6 (–10), cymes (2–) 6–14-flowered, 2 per node; proximal bracts lanceolate to linear, rarely ovate, 3–60 × 1–23 mm, margins entire; peduncles and pedicels ascending to erect, ± retrorsely hairy. Flowers: calyx lobes broadly ovate, 1.8–3 (–3.5) × 1.4–2 mm, apex obtuse to acute or short-cuspidate, glabrous; corolla blue to violet or purple, with faint reddish purple nectar guides, funnelform, 12–16 (–18) mm, glabrous externally, sparsely white-villous internally abaxially, tube 4–5 mm, throat gradually inflated, 3–6 mm diam., 2-ridged abaxially; stamens included or longer pair slightly exserted, pollen-sacs opposite, navicular, 0.9–1 mm, dehiscing completely, connective splitting, sides glabrous, sutures papillate; staminode 8–9 mm, reaching orifice, 0.2–0.3 mm diam., tip slightly recurved, distal 3–4 mm moderately to densely villous, hairs golden yellow, to 1 mm; style 9–13 mm. Capsules 4–7 × 3.5–5 mm, glabrous. 2n = 16.


Phenology: Flowering May–Aug.
Habitat: Dry, rocky slopes, sagebrush shrublands, pine-oak and pine woodlands.
Elevation: 1700–3200 m.

Distribution

Ariz., Colo., Idaho, Nev., Utah, Wyo.

Discussion

Penstemon watsonii is known from mountain ranges throughout the Intermountain Region. Penstemon laxus, which has been included as a variety of this species, has corollas 2–3 mm in diameter and densely white-villous internally abaxially, and is known from south-central Idaho north of the Snake River. Penstemon watsonii does enter extreme south-central Idaho but is not known to occur north of the Snake River.

Selected References

None.

Lower Taxa

None.

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

... more about "Penstemon watsonii"
RDF feed
2n chromosome quantity
16 +
Abaxial lobe quantity
3 +
Adaxial lobe quantity
2 +
Androecium position
hypogynous +
Apex pubescence
glabrous +
Apex shape
obtuse +  and acute or short-cuspidate +
Author
Craig C. Freeman +
Authority
A. Gray in A. Gray et al. +
Axis pubescence
hairy +
Basal architecture
petiolate +
Basal arrangement
alternate +, subopposite +, whorled +  and opposite +
Basal coating
glaucescent +
Basal development
developed +
Basal leaf architecture
simple +
Basal leaf arrangement
alternate +, opposite +, whorled +, helical +  and subopposite +
Basal leaf development
developed +
Basal leaf presence
absent +
Basal leaf pubescence
Puberulent (?) +  and Glabrous (?) +
Basal leaf texture
not leathery +
Basal position
cauline +, proximal +  and basal +
Basal presence
absent +
Basal pubescence
rarely +, not glaucous +, glabrate +, pubescent +, hairy +, glandular-lanate +, glandular-pubescent +, puberulent +, glandular +  and glabrous +
Basal texture
not +  and leathery +
Base architecture or fixation
clasping +
Base shape
tapered +
Blade arrangement or course or shape
linear +
Blade arrangement or shape
elliptic +
Blade shape
oblanceolate;lanceolate +
Blade texture
not +  and leathery +
Bract presence
absent +
Bracteole size
smaller +
Calyx architecture or shape
symmetric +
Calyx lobe atypical length
0.3 cm3 mm <br />0.003 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Calyx lobe length
1.8mm;3mm +
Calyx lobe shape
ovate +
Calyx lobe width
1.4mm;2mm +
Calyx position relational
not surrounding +
Calyx shape
short-tubular +  and short-campanulate +
Capsule length
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Capsule pubescence
glabrous +
Capsule width
0.35 cm3.5 mm <br />0.0035 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Caudex architecture
rhizomelike +
Caudex growth form or texture
herbaceous +
Caudex texture
woody +
Cauline leaf architecture
sessile +  and short-petiolate +
Cauline leaf atypical length
7 cm70 mm <br />0.07 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Cauline leaf atypical width
1.8 cm18 mm <br />0.018 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Cauline leaf length
3 cm30 mm <br />0.03 m <br /> (7 cm70 mm <br />0.07 m <br />) +
Cauline leaf quantity
4 (8) +
Cauline leaf width
0.8 cm8 mm <br />0.008 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Common name
Watson’s beardtongue +
Connective architecture or dehiscence
splitting +
Corolla architecture
personate +, not personate +, bilabiate +  and symmetric +
Corolla architecture or shape
symmetric +
Corolla atypical some measurement
1.6 cm16 mm <br />0.016 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
Corolla coloration
blue +  and violet +
Corolla coloration or density
purple +
Corolla pubescence
white-villous +  and glabrous +
Corolla shape
ventricose +, tubular +  and tubular-funnelform +
Corolla size
ampliate +
Corolla some measurement
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
Cyme architecture
(2-)6-14-flowered +
Cyme quantity
2 +
Distal flower pubescence
villous +
Distal flower some measurement
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Distal leaf-blade shape
scale-like +  and not needlelike +
Distribution
Ariz. +, Colo. +, Idaho +, Nev. +, Utah +  and Wyo. +
Drupe shape
drupe-like +
Elevation
1700–3200 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
Dry, rocky slopes, sagebrush shrublands, pine-oak and pine woodlands. +
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 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 +
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 coating
glutinous +
Margin growth form or texture
herbaceous +
Margin pubescence
glandular-ciliolate +, hairy +, puberulent +, glabrescent +, glabrous +  and glandular-pubescent +
Margin shape
lacerate +, toothed +  and entire +
Margin texture
scarious +
Nectar guide coloration
reddish purple +
Nectar guide prominence
faint +
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
hairy +
Peduncle orientation
ascending;erect +
Peduncle pubescence
hairy +
Perianth position
hypogynous +
Petal fusion
connate +
Petal presence
absent +
Petal quantity
5 +  and 4 +
Petiole presence
absent +
Phenology
Flowering May–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
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
Pollen-sac orientation
explanate +
Pollen-sac position or shape
distal +
Pollen-sac quantity
1/5 +  and 2/3 +
Pollen-sac shape
navicular +
Proximal bract length
0.3 cm3 mm <br />0.003 m <br /> (6 cm60 mm <br />0.06 m <br />) +
Proximal bract shape
ovate +, lanceolate +  and linear +
Proximal bract width
0.1 cm1 mm <br />0.001 m <br /> (2.3 cm23 mm <br />0.023 m <br />) +
Publication title
Syn. Fl. N. Amer. +
Publication year
1878 +
Reference
None +
Rim presence
absent +
Rim size
minute +
Seed atypical quantity
40 (100) +
Seed atypical some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
Seed coloration
black +, gray +, brown +  and tan +
Seed quantity
5;40 +
Seed shape
angled +  and slightly rounded +
Seed some measurement
0.04 cm0.4 mm <br />4.0e-4 m <br /> (0.2 cm2 mm <br />0.002 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 544.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
exserted +  and included +
Stamen quantity
4 +
Staminode diameter
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 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 0.9 cm9 mm <br />0.009 m <br /> (?) +
Staminode variability
equal +
Stem architecture or function or pubescence
glandular +
Stem arrangement
subalternate +, alternate +, whorled +  and opposite +
Stem coating
glutinous +
Stem growth form
climbing +  and scrambling +
Stem growth form or orientation
sprawling +, creeping +  and prostrate +
Stem orientation
ascending;erect +
Stem position
basal +
Stem presence
absent +
Stem pubescence
not glaucous +, puberulent +  and glabrous +
Stem some measurement
25 cm250 mm <br />0.25 m <br /> (60 cm600 mm <br />0.6 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
0.9 cm9 mm <br />0.009 m <br /> (1.3 cm13 mm <br />0.013 m <br />) +
Suture architecture or pubescence or relief
smooth +
Suture relief
papillate +
Suture shape
denticulate +
Taxon family
Plantaginaceae +
Taxon name
Penstemon watsonii +
Taxon parent
Penstemon sect. Penstemon +
Taxon rank
species +
Throat diameter
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Throat shape
2-ridged +  and inflated +
Throat size
not constricted +
Thyrse architecture
interrupted +  and continuous +
Thyrse atypical some measurement
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Thyrse shape
cylindric +
Thyrse some measurement
5 cm50 mm <br />0.05 m <br /> (16 cm160 mm <br />0.16 m <br />) +
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 atypical quantity
6 (10) +
Verticillaster quantity
2 (6) +
Volume
Volume 17 +
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 +