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Penstemon digitalis Nutt. ex Sims
TALUS SLOPE PENSTEMON
Life   Plantae   Dicotyledoneae   Scrophulariaceae   Penstemon

Penstemon digitalis, Tall Beard-tongue
© Copyright Sheryl Pollock 2011 · 8
Penstemon digitalis, Tall Beard-tongue

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Penstemon digitalis, flower
© Kay Yatskievych, 2003 · 1
Penstemon digitalis, flower
Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis

Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis
Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis

Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis
Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis

Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis
Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis

Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis
Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis

Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis
Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis

Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis
Penstemon digitalis
© Copyright Michael Strickland, 2008 · 1
Penstemon digitalis

Associates · map
FamilyScientific name @ source (records)
Andrenidae  Andrena wilkella @ CUIC_ENT (2)
Apidae  Anthophora terminalis @ CUIC_ENT (1); AMNH_BEE (1)

Ceratina mikmaqi @ UCMS_ENT (1)

Melissodes denticulata @ CUIC_ENT (1)

Xylocopa virginica @ CUIC_ENT (1)
Halictidae  Agapostemon virescens @ CUIC_ENT (4)

Halictus confusus @ CUIC_ENT (2)

Lasioglossum hitchensi @ CUIC_ENT (1)

Lasioglossum versatum @ AMNH_BEE (1)

Lasioglossum viridatum @ AMNH_BEE (1)
Megachilidae  Megachile gemula @ CUIC_ENT (1)

Osmia distincta @ AMNH_BEE (6); BBSL (1)
Mycosphaerellaceae  Septoria pentstemonis @ BPI (6)
Pucciniaceae  Puccinia andropogonis @ BPI (1)

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Following modified from Delaware Wildflowers
   Top | See original

Delaware Wildflowers  •  Scientific names

Penstemon digitalis Nutt. ex Sims Tall White Beardtongue
Plantaginaceae — Plantain family
Native
Penstemon digitalis
Brandywine Creek State Park
June 2008 Penstemon digitalis
White Clay Creek State Park -- Possum Hill
June 2001

More information on this plant, from other sources.


Copyright David G. Smith

Delaware Wildflowers main page

Following modified from MissouriPlants.com
   Top | See original


Penstemon digitalis Nutt.

Penstemon digitalis plant

Family - Scrophulariaceae

Stems - To +1m tall, glabrous below (sometimes with minute hairs in vertical lines), glandular pubescent above, simple to somewhat branching, herbaceous, from a thick caudex.

Penstemon digitalis stem

Leaves - Opposite or rarely in whorls of 3s, petiolate below to sessile above, glabrous, with punctate dots below, entire or shallow serrate.. Petioles to 8cm long. Blades variously shaped from spatulate to lanceolate, to 20cm long, +5cm broad, reduced at inflorescence.

Penstemon digitalis leaves

Inflorescence - Terminal thryse to 20 cm tall(long). Cymes in +/-5 verticillasters. Cymes with typically +/-3 flowers each. Peduncles and pedicels spreading away from stem or sub-erect, dense glandular pubescent (the glands often blackish). Each division of inflorescence subtended by pair of attenuate bracts (reduced upward).

Flowers - Corolla bilabiate, white, 2.5-3cm long, glandular and non-glandular pubescent externally, glabrous internally. Corolla tube constricted in basal half, less constricted in apical half. Upper lip of corolla 2-lobed. Lower lip 3-lobed. Lobes rounded to obtuse, 3-5mm long and broad. Stamens 4, adnate near apex of constricted portion of corolla tube. Staminode 1. Filaments to 2cm long, white, glabrous. Anthers purplish-black, 3mm long. Style 2cm long, white, glabrous. Ovary green, glabrous, 4mm long. Calyx 5-lobed. Lobes ovate to lance-ovate, acute to acuminate, glandular pubescent, 4-5mm long, 3mm broad. Capsule to 1.5cm long.

Penstemon digitalis calyx Calyx close-up.

Penstemon digitalis corolla Corolla.

Penstemon digitalis corolla Corolla again.

Flowering - May - July.

Habitat - Rich woods, prairies, thickets, roadsides, railroads. Also cultivated.

Origin - Native to U.S.

Other info. - This is the most common species of the genus in Missouri, being found in almost every county except in the extreme northwest corner of the state.
Steyermark lists two varieties for this species in Missouri. Form digitalis , pictured above, has leaves which are opposite. Form baueri , has leaves in whorls of 3s. This latter form is rare.
The flowers resemble those of the genus Digitalis , hence the species name.
Many species of the genus Penstemon look alike at first glance. Check them out carefully to be sure which one you really have.

Photographs taken off Hwy V, Shannon County, MO., 5-23-03.


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Following modified from Plants Database, United States Department of Agriculture
   Top | See original

http://plants.usda.gov/java/profile?symbol=PEDI ---> https://plants.usda.gov/java/profile?symbol=PEDI
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://plants.usda.gov/java/profile?symbol=PEDI

Following modified from CalPhotos
   Top | See original


CalPhotos     Photo Database

 

Number of matches : 21
Query: SELECT * FROM img WHERE ready=1 and taxon like "Penstemon digitalis%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Penstemon digitalis
Penstemon digitalis
Foxglove Beardtongue
ID: 0000 0000 0506 1702 [detail]
© 2006 Jeff Abbas

Penstemon digitalis
Penstemon digitalis
Foxglove Beardtongue
ID: 0000 0000 0506 1703 [detail]
© 2006 Jeff Abbas

Penstemon digitalis
Penstemon digitalis
Foxglove Beardtongue
ID: 0000 0000 0506 1704 [detail]
© 2006 Jeff Abbas

Penstemon digitalis
Penstemon digitalis
Foxglove Beardtongue
ID: 0000 0000 0506 1705 [detail]
© 2006 Jeff Abbas

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2252 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2253 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2254 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2255 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2256 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2257 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2258 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2259 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2260 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
False Foxglove
ID: 0000 1111 2222 2261 [detail]
© 2016 Keir Morse

Penstemon digitalis
Penstemon digitalis
Talus Slope Penstemon
ID: 0000 0000 1209 2471 [detail]
© 2009 Gary A. Monroe

Penstemon digitalis
Penstemon digitalis
Talus Slope Penstemon
ID: 0000 0000 1209 2472 [detail]
© 2009 Gary A. Monroe

Penstemon digitalis
Penstemon digitalis
Talus Slope Penstemon
ID: 0000 0000 1209 2473 [detail]
© 2009 Gary A. Monroe

Penstemon digitalis
Penstemon digitalis
Talus Slope Penstemon
ID: 0000 0000 1209 2474 [detail]
© 2009 Gary A. Monroe

Penstemon digitalis
Penstemon digitalis
ID: 0000 0000 0610 0116 [detail]
© 2010 Louis-M. Landry

Penstemon digitalis
Penstemon digitalis
Talus Slope Penstemon
ID: 0000 0000 0412 2726 [detail]
© 2012 Gary A. Monroe

Penstemon digitalis
Penstemon digitalis
Talus Slope Penstemon
ID: 0000 0000 0412 2727 [detail]
© 2012 Gary A. Monroe

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   


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