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Houstonia caerulea L.
AZURE BLUET
Hedyotis caerulea; Bluets; Quaker ladies; Blue eyed babies; Bright eyes; Nuns; Quaker bonnets; Star violet; Innocence

Life   Plantae   Dicotyledoneae   Rubiaceae   Houstonia

Houstonia caerulea
© Les Mehrhoff, 2008-2010 · 6
Houstonia caerulea

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Houstonia caerulea
© Copyright Bobby Hattaway 2011 · 5
Houstonia caerulea
Houstonia caerulea
© Copyright Bobby Hattaway 2011 · 5
Houstonia caerulea

Houstonia caerulea, inflorescence - frontal view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Houstonia caerulea, inflorescence - frontal view of flower
Houstonia caerulea, inflorescence - lateral view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Houstonia caerulea, inflorescence - lateral view of flower

Houstonia caerulea, leaf - basal or on lower stem
© Copyright Steve Baskauf, 2002-2011 · 4
Houstonia caerulea, leaf - basal or on lower stem
Houstonia caerulea, stem - showing leaf bases
© Copyright Steve Baskauf, 2002-2011 · 4
Houstonia caerulea, stem - showing leaf bases

Houstonia caerulea, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Houstonia caerulea, whole plant - in flower - general view
Houstonia caerulea, inflorescence - frontal view of flower
© Copyright Steve Baskauf, 2002-2011 · 4
Houstonia caerulea, inflorescence - frontal view of flower

Houstonia caerulea, whole plant - in flower - general view
© Copyright Steve Baskauf, 2002-2011 · 4
Houstonia caerulea, whole plant - in flower - general view
Houstonia caerulea, fruit - lateral or general close-up
© Copyright Steve Baskauf, 2002-2011 · 4
Houstonia caerulea, fruit - lateral or general close-up

Houstonia caerulea, Bluets
© Copyright Sheryl Pollock 2011 · 2
Houstonia caerulea, Bluets
Houstonia caerulea, plant and leaf and flower
© Kay Yatskievych, 2003 · 1
Houstonia caerulea, plant and leaf and flower

Houstonia caerulea
© Copyright Michael Strickland, 2008 · 1
Houstonia caerulea
Houstonia caerulea
© Copyright Michael Strickland, 2008 · 1
Houstonia caerulea

Hosts · map
FamilyScientific name @ source (records)
_  flower @ I_JONA (3)

Associates · map
FamilyScientific name @ source (records)
Peronosporaceae  Peronospora seymourii @ BPI (1)
Pucciniaceae  Uromyces houstoniatus @ BPI (94)
Uropyxidaceae  Aecidium houstoniatum @ BPI (9)
Ustilaginaceae  Ustilago @ BPI (1)

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Following modified from Delaware Wildflowers
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Delaware Wildflowers  •  Colors

Bluet Houstonia caerulea
Rubiaceae — Madder family
Native
Bluet
Brandywine Creek State Park
April 2004 Bluet
Susquehanna State Park, Maryland
April 2012

More information on this plant, from other sources.


Copyright David G. Smith

Delaware Wildflowers main page

Following modified from MissouriPlants.com
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Houstonia caerulea  L.

Bluets

Houstonia caerulea plant

Family - Rubiaceae

Stems - No info. yet.

Leaves - No info. yet.

Houstonia caerulea leaves

Inflorescence - No info. yet.

Flowers - No info. yet.

Houstonia caerulea calyx Calyx.

Houstonia caerulea flowers Flowers.

Flowering - April - May.

Habitat - Moist ledges, low prairies, sandy banks, sandy open woods, glades. Usually on acid soils.

Origin - Native to U.S.

Other info. - This little species can be found in the eastern Ozark region of Missouri. This plant is easy to identify in the field because it has large flowers for such a small plant. The flowers can be white to blue and a single flower terminates each thin stem.

Photographs taken in Umstead State Park, NC., 3-23-03, and at Moss Rock Preserve, Hoover, AL., 3-12-06.


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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=HOCA4 ---> https://plants.usda.gov/java/profile?symbol=HOCA4
https://plants.usda.gov/java/profile?symbol=HOCA4 ---> http://plants.usda.gov/core/profile?symbol=HOCA4
http://plants.usda.gov/core/profile?symbol=HOCA4 ---> https://plants.usda.gov/core/profile?symbol=HOCA4
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You are here: Home / Plant Profile

Houstonia caerulea L.
azure bluet

Image of Houstonia caerulea

General Information
Symbol: HOCA4
Group: Dicot
Family: Rubiaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : CAN   N
L48   N
SPM   I
Data Source and Documentation
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Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   

Images

click on a thumbnail to view an image, or see all the Houstonia thumbnails at the Plants Gallery

©Thomas G. Barnes. Usage Requirements .

©Thomas G. Barnes. Usage Requirements .

©Thomas G. Barnes. Barnes, T.G., and S.W. Francis. 2004. Wildflowers and ferns of Kentucky . University Press of Kentucky. Usage Requirements .

©Elaine Haug. Provided by Smithsonian Institution, Department of Botany . United States, VA, Quantico, Prince William Forest Park. Usage Requirements .

Jose Hernandez. Provided by ARS Systematic Botany and Mycology Laboratory . United States, PA, Buckstown. Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 3: 251. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .

slideshow

Synonyms

Symbol Scientific Name
HECA19 Hedyotis caerulea (L.) Hook.
HOCAF Houstonia caerulea L. var. faxonorum Pease & A.H. Moore

Classification

Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Superdivision Spermatophyta – Seed plants
Division Magnoliophyta – Flowering plants
Class Magnoliopsida – Dicotyledons
Subclass Asteridae
Order Rubiales
Family Rubiaceae – Madder family
Genus Houstonia L. – bluet
Species Houstonia caerulea L. – azure bluet

Subordinate Taxa

This plant has no children

Legal Status

Wetland Status

Interpreting Wetland Status

North America
Atlantic and Gulf Coastal Plain FAC
Eastern Mountains and Piedmont FACU
Great Plains FACU
Midwest FAC
Northcentral & Northeast FACU

Related Links

More Accounts and Images
ARS Germplasm Resources Information Network (HOCA4)
Integrated Taxonomic Information System (HECA19)
Integrated Taxonomic Information System (HOCA4)
Integrated Taxonomic Information System (HOCAF)
Lady Bird Johnson Wildflower Center Native Plant Information Network (HOCA4)
Native American Ethnobotany (University of Michigan - Dearborn) (HOCA4)
University of Tennessee Herbarium (Distribution) (HOCA4)
University of Wisconsin - Stevens Point Freckmann Herbarium (HOCA4)

Wildlife

Food

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Cover

Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover


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Following modified from CalPhotos
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http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Houstonia+caerulea&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=Houstonia+caerulea&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

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Number of matches : 9
Query: SELECT * FROM img WHERE ready=1 and taxon like "Houstonia caerulea%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Houstonia caerulea
Houstonia caerulea
Bluets
ID: 0000 0000 0307 0376 [detail]
© 2007 LTC William E. Ottinger, Ph.D.

Houstonia caerulea
Houstonia caerulea
ID: 0000 0000 0509 1375 [detail]
© 2009 Barry Rice

Houstonia caerulea
Houstonia caerulea
ID: 0000 0000 0311 0950 [detail]
© 2011 Louis-M. Landry

Houstonia caerulea
Houstonia caerulea
ID: 0000 0000 0311 0951 [detail]
© 2011 Louis-M. Landry

Houstonia caerulea
Houstonia caerulea
ID: 0000 0000 0311 0952 [detail]
© 2011 Louis-M. Landry

Houstonia caerulea
Houstonia caerulea
ID: 0000 0000 0311 0953 [detail]
© 2011 Louis-M. Landry

Houstonia caerulea
Houstonia caerulea
ID: 0000 0000 0311 0954 [detail]
© 2011 Louis-M. Landry

Houstonia caerulea
Houstonia caerulea
ID: 0000 0000 0311 0955 [detail]
© 2011 Louis-M. Landry

Houstonia caerulea
Houstonia caerulea
ID: 0000 0000 0311 0956 [detail]
© 2011 Louis-M. Landry

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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