Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Gentianales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Houstonia tenuifolia
FAMILY
Rubiaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Narrowleaf Bluet at Vascular Plants of North Carolina.
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Houstonia longifolia
FAMILY
Rubiaceae
INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Houstonia longifolia
INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)
Houstonia longifolia
SYNONYMOUS WITH Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Hedyotis nuttalliana
INCLUDED WITHIN The Genera of Cinchonoideae (Rubiaceae) in the southeastern US (Rogers, 1987)
Hedyotis longifolia
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 173-08-007:
Houstonia tenuifolia FAMILY Rubiaceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Houstonia tenuifolia
SYNONYMOUS WITH -
Houstonia longifolia var. tenuifolia
COMMON NAME:
Narrowleaf Bluet, Diffuse-branched Bluet
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_hote3_001_lvd
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Houstonia tenuifolia
FAMILY
Rubiaceae
INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Houstonia longifolia
FAMILY
Rubiaceae
INCLUDED WITHIN
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Houstonia longifolia
INCLUDED WITHIN
Floristic Synthesis of North America (Kartesz, 1999)
Houstonia longifolia
SYNONYMOUS WITH
Manual of Vascular Plants of NE US & Adjacent Canada (Gleason & Cronquist,1991)
Hedyotis nuttalliana
INCLUDED WITHIN
The Genera of Cinchonoideae (Rubiaceae) in the southeastern US (Rogers, 1987)
Hedyotis longifolia
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 173-08-007:
Houstonia tenuifolia
FAMILY
Rubiaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Houstonia tenuifolia
SYNONYMOUS WITH
-
Houstonia longifolia var. tenuifolia
2022
Forb
Perennial
Habitat: Usually in dry woodlands, often rocky (especially mafic rocks) or sandy, per Weakley's Flora
Native to the Carolinas & Georgia
Uncommon
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Opposite (basal leaves absent or withered at flowering)
Margins entire
FLOWER:
Spring/Summer
Lavender/White
Radially symmetrical
4 sepals
4-lobed funnelform corolla
4 included stamens
Bisexual
FRUIT:
Summer/Fall
Capsule
TO LEARN MORE about this plant, look it up in a good book!
- All About South Carolina Wildflowers (Midgley, 1999) p180
- Newcomb's Wildflower Guide (Newcomb, 1977) p158
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p105
- Wildflowers of Tennessee (Carman, 2005) p263?
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p305?
- 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".