Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Gentianales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Houstonia canadensis
FAMILY
Rubiaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Canada Bluet at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Houstonia canadensis
FAMILY
Rubiaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Houstonia canadensis
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Houstonia canadensis
SYNONYMOUS WITH The Genera of Cinchonoideae (Rubiaceae) in the southeastern US (Rogers, 1987)
Hedyotis canadensis
COMMON NAME:
Canada Bluet
To see larger pictures, click or hover over the thumbnails.
)
Richard and Teresa Ware rtw_h_canadensis_3
April
Flowers similar to H. purpurea, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).
)
Richard and Teresa Ware rtw_h_canadensis_c
July
Our only Houstonia with basal leaves ciliate and present at flowering, per Wildflowers of the Eastern United States (Duncan & Duncan, 1999).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Houstonia canadensis
FAMILY
Rubiaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Houstonia canadensis
FAMILY
Rubiaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Houstonia canadensis
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Houstonia canadensis
SYNONYMOUS WITH
The Genera of Cinchonoideae (Rubiaceae) in the southeastern US (Rogers, 1987)
Hedyotis canadensis
2961
Forb
Perennial
Habitat: Dry limestone barrens (sometimes locally abundant in shallow soils over limestone), limestone woodlands and outcrops, per Weakley's Flora
Native to Georgia & possibly the Carolinas
Rare
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Basal & opposite
Margins entire
FLOWER:
Spring/Summer
Lavender/White?
Radially symmetrical
4 sepals
4-lobed funnelform corolla
4 included stamens
Bisexual
FRUIT:
Spring/Summer/Fall
Capsule
TO LEARN MORE about this plant, look it up in a good book!
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p098
- Wildflowers in the Field and Forest: Northeastern US (Clemants & Gracie, 2006) p038
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p306
- Wildflowers of the Southern Mountains (Smith, 1998) p166
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".