OF THE CAROLINAS & GEORGIA

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

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (10/20/20):
Houstonia caerulea   FAMILY Rubiaceae   Go to FSUS key


INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Houstonia caerulea   FAMILY Rubiaceae

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 (10/20/20):
Houstonia caerulea   FAMILY Rubiaceae

INCLUDED WITHIN PLANTS NATIONAL DATABASE:
Houstonia caerulea   FAMILY Rubiaceae

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

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

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Simple
Basal rosette & opposite
Margins entire

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

FRUIT:
Spring/Summer
Capsule

 

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



 


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