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Verbena hastata L.
AMERICAN VERVAIN
Swamp verbena

Life   Plantae   Dicotyledoneae   Verbenaceae   Verbena

Verbena hastata, Blue Vervain
© Copyright Sheryl Pollock 2011 · 9
Verbena hastata, Blue Vervain

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Verbena hastata, Blue Vervain
© Copyright Sheryl Pollock 2011 · 8
Verbena hastata, Blue Vervain
Verbena hastata, Howard County, MD, Helen Lowe Metzman ---.
© Copyright source/photographer · 5
Verbena hastata, Howard County, MD, Helen Lowe Metzman ---.

Verbena hastata, Blue Vervain, Howard County, MD, Helen Lowe Metzman ---.
© Copyright source/photographer · 5
Verbena hastata, Blue Vervain, Howard County, MD, Helen Lowe Metzman ---.
Verbena hastata
© Les Mehrhoff, 2008-2010 · 5
Verbena hastata

Verbena hastata
© Les Mehrhoff, 2008-2010 · 4
Verbena hastata
Verbena hastata, seed
© Copyright Seeds USID 2015 · 1
Verbena hastata, seed

Verbena hastata, seeds
© Copyright Seeds USID 2015 · 1
Verbena hastata, seeds

Associates · map
FamilyScientific name @ source (records)
Andrenidae  Calliopsis nebraskensis @ AMNH_BEE (24)
Apidae  Bombus affinis @ CUIC_ENT (2)

Bombus ashtoni @ AMNH_BEE (3)

Bombus borealis @ AMNH_BEE (1)

Bombus citrinus @ CUIC_ENT (1)

Bombus fervidus @ AMNH_BEE (2)

Bombus griseocollis @ CUIC_ENT (1); AMNH_BEE (1)

Bombus impatiens @ UCMS_ENT (5)

Bombus rufocinctus @ AMNH_BEE (1)

Bombus ternarius @ CUIC_ENT (1)

Bombus terricola @ AMNH_BEE (1)

Ceratina calcarata @ MLSB__N16- (2)

Melissodes denticulata @ CUIC_ENT (1)
Erysiphaceae  Erysiphe cichoracearum @ BPI (33)

Erysiphe verbenae @ BPI (1)
Halictidae  Agapostemon virescens @ CUIC_ENT (1)

Halictus ligatus @ UCMS_ENT (1)

Halictus rubicundus @ AMNH_BEE (2)

Lasioglossum semicaeruleum @ AMNH_BEE (1)
Megachilidae  Anthidium maculosum @ AMNH_BEE (1)

Coelioxys rufitarsis @ AMNH_BEE (1)

Megachile centuncularis @ MLSB__N16- (1); CUIC_ENT (1)

Megachile rotundata @ CUIC_ENT (2); MLSB__N16- (1)
Mycosphaerellaceae  Didymella rehmii @ BPI (1)

Septoria verbenae @ BPI (27)
Pucciniaceae  Puccinia sydowiana @ BPI (1)

Puccinia verbenicola @ BPI (1)

Puccinia vilfae @ BPI (11)
_  Ascochyta cuneomaculata @ BPI (1)

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Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Scientific names

Verbena hastata L. Blue Vervain
Verbenaceae — Vervain family
Native
Verbena hastata
Red Mill Road
July 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


Verbena hastata L. - Blue Vervain

Verbena hastata plant

Family - Verbenaceae

Stems - To 1.6m tall, branched above, herbaceous, pubescent, often slightly scabrous, 4-angled.

Verbena hastata stem Stem at a node.

Leaves - Opposite, petiolate, lanceolate to lanceolate-oblong or lanceolate-ovate, to +/-3cm broad, +15cm long, serrate to double serrate, scabrous above, pubescent below.

Verbena hastata leaves

Inflorescence - Multiple terminal spikes, with flowers dense and overlapping, indeterminate.

Verbena hastata inflorescence Single spike of inflorescence.

Flowers - Corolla whitish to blue-purple or rose, to 10mm long, 4mm wide at apex, tubular, salverform, 5-lobed, zygomorphic. Stamens 5, included within corolla. Calyx to 3mm long, tubular, pubescent, 5-lobed(toothed).

Verbena hastata flower Flower close-up.

Flowering - June - October.

Habitat - Moist ground, waste ground, pastures, thickets, meadows, streambanks, roadsides, railroads.

Origin - Native to U.S.

Other info. - This plant is sometimes confused with V. urticifolia L. but the latter has flowers which are not as dense on the spikes and with corollas which are typically white. V. urticifolia also has much broader leaves than does V. hastata .
V. hastata is a common plant and can bloom when quite small if mowed or cut frequently.
Steyermark lists three forms for the species. Form hastata , pictured above, has the typical blue-purple corolla. Form rosea Cheney , has a rose-colored corolla and is rare. Form albiflora Moldenke , has a white corolla and is also rare.

Photographs taken off Shaw Ave., St. Louis, MO., 7-28-03.
 


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Following modified from Plants Database, United States Department of Agriculture
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http://plants.usda.gov/java/profile?symbol=VEHA2 ---> https://plants.usda.gov/java/profile?symbol=VEHA2
&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=VEHA2

Following modified from CalPhotos
   Top | See original

http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Verbena+hastata+&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Verbena+hastata+&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant
&pull 20q v4.662 20091102: Error 501 Protocol scheme 'https' is not supported (LWP::Protocol::https not installed) https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Verbena+hastata+&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

Updated: 2018-05-23 23:25:34 gmt
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