OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Gentianales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Houstonia caerulea   FAMILY Rubiaceae   Go to FSUS key



INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Houstonia caerulea   FAMILY Rubiaceae

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Houstonia caerulea

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)

Houstonia caerulea

SYNONYMOUS WITH Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)

Hedyotis caerulea

SYNONYMOUS WITH Aquatic & Wetland Plants of Southeastern US (Godfrey & Wooten, 1979 & 1981)

Hedyotis caerulea

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 173-08-001:

Houstonia caerulea   FAMILY Rubiaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)

Houstonia caerulea

 

COMMON NAME:
Quaker Ladies, Common Bluet, Innocence, Azure Bluet


         To see larger pictures, click or hover over the thumbnails.

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_hoca4_001_lvd

        

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

JK Marlow    jkm160319_032035

March    Pickens County    SC

Nine Times Preserve

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

Keith Bradley    kab_h_caerulea_2659

March    Newberry County    SC

Lynch's Woods Park

Flowers similar to those of H. serpyllifolia; H. caerulea is a somewhat duller blue, per Weakley's Flora (2020).

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

Terry Holdsclaw    tdh_h_caerulea_9599

March    Lincoln County    NC

Corolla about 1/2" wide, blue to white with a yellow eye, per Wildflowers of the Southern Mountains (Smith, 1998).

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

JK Marlow    jkm140420_466

April    Greenville County    SC

Chandler Heritage Preserve

Plants forming clumps less than or equal to 4" wide, per Wildflowers in the Field and Forest: Northeastern US (Clemants & Gracie, 2006).

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

JK Marlow    jkm140420_470

April    Greenville County    SC

Chandler Heritage Preserve

Erect, rising from a basal rosette of spatulate leaves 1/2" long, per Wildflowers of the Southern Mountains (Smith, 1998).

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

JK Marlow    jkm190412_7250

April    Rabun County    GA

Plants with a well-developed, persistent basal rosette, per Weakley's Flora (2020).

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

JK Marlow    jkm210423_9676

April    Jackson County    NC

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

Richard and Teresa Ware    rtw_houstonia_caerulea_3

April        

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

Terry Holdsclaw    tdh_h_caerulea_0021b

April    Catawba County    NC

A delicate plant with solitary salverform flowers, per Wildflowers of the Southern Mountains (Smith, 1998).

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

Terry Holdsclaw    tdh_houstonia_caerulea_1b

April    Catawba County    NC

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

JK Marlow    jkm170507_715

May    Transylvania County    NC

Blue Ridge Parkway

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

JK Marlow    jkm170507_715b

May    Transylvania County    NC

Blue Ridge Parkway

image of Houstonia caerulea, Quaker Ladies, Common Bluet, Innocence, Azure Bluet

JK Marlow    jkm170507_716

May    Transylvania County    NC

Blue Ridge Parkway

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Houstonia caerulea   FAMILY Rubiaceae

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Houstonia caerulea   FAMILY Rubiaceae

INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Houstonia caerulea

INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)
Houstonia caerulea

SYNONYMOUS WITH Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Hedyotis caerulea

SYNONYMOUS WITH Aquatic & Wetland Plants of Southeastern US (Godfrey & Wooten, 1979 & 1981)
Hedyotis caerulea

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 173-08-001:
Houstonia caerulea   FAMILY Rubiaceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Houstonia caerulea

 

Find by SCIENTIFIC NAME:

696

Forb
Perennial

Habitat: forests, woodlands, openings, lawns, a wide variety of disturbed sites, per Weakley's Flora

Native to the Carolinas & Georgia

Common (uncommon in Coastal Plain of GA & SC)

map
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.

LEAVES:
Simple
Basal rosette & opposite
Margins entire

FLOWER:
Winter/Spring/Summer
Blue (rarely white or lilac)
Eye: Yellow
Radially symmetrical
4 sepals
4-lobed salverform corolla
4 included stamens
Bisexual

FRUIT:
Spring/Summer
Capsule

 

TO LEARN MORE about this plant, look it up in a good book!



 


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