Trichostema setaceum

Family (Traditional)Lamiaceae
Species:Trichostema setaceum Houtt.
Common NameNarrowleaf Bluecurls
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Natural Area Presence: FG; Natural Area Presence: LGS; Natural Area Presence: LRC; Natural Area Presence: LULA; Duration: Annual; General Ecology: Terrestrial; Growth Habit: forb; Moisture Requirements: Xeric; Moisture Requirements: Sub-xeric; Region of Origin: North America; Reproductive Phenology: August; Reproductive Phenology: September; Reproductive Phenology: October; Reproductive Phenology: November; Leaf Arrangement: opposite; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Persistance: Deciduous; Leaf Type: broadleaf; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Dorsifixed; Base Flower Color: Blue; Carpel Number/Pistil: 2; Fruit Dehiscence: No; Fruit Type: Nut; Fruit Type: Nutlet; Fruit Type: Schizocarp; Fruit Wet/Dry: Dry; Hypanthium Present: No; Ovary Position: Superior; Overall Flower Symmetry: Zygomorphic; Ovules per Carpel: 1; Ovules per Carpel: 2; Ovules per Carpel: 3; Ovules per Carpel: 4; Perianth Present: Yes; Petal Number: 5; Placentation Type: Axillary; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 4
C value 5
StatusNative; TN[SNR] KY[S1] (State Rank); G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Currently no photos are available for this plant.

Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display the its name. Click the question mark icon () to view additional information about the ecoregions shown. In the map legend, there are links to toggle the visibility of the ecoregions and/or their labels. In addition, clicking on an ecoregion name will highlight that region on the map.

  • State Boundaries
  • Counties
  • Counties - Species Present
  • Southeastern Plains
    • Blackland Prarie
  • Blue Ridge Mountains
  • Ridge and Valley
  • Cumberland Plateau
  • Cumberland Mountains
  • Allegheny Plateau
  • Interior Plateau
    • Bluegrass Region
    • Nashville Basin
    • Pennyroyal Karst Plain
    • Western Highland Rim
    • Eastern Highland Rim


No synonyms exist for this species.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort.

Counties included on distribution map: Barren (KY), Calloway (KY), Pulaski (KY), Fayette (TN), Franklin (TN), Hamilton (TN), Marion (TN), Rhea (TN), Roane (TN)

Herbaria represented by specimen data listed below: APSC, EKY, MEM, TENN, UCHT, UOS

Range of years during which specimens were collected: 1980 - 2004

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
UCHT023700 Hamilton Tennessee
Trichostema setaceum
UCHT023698UCHT023699 Marion Tennessee
Trichostema setaceum
MEM006510 Calloway Kentucky Raymond Athey
Trichostema setaceum
TENN-V-0186589 Rhea Tennessee
Trichostema setaceum
TENN-V-0186588 Franklin Tennessee
Trichostema setaceum
UCHT023699 Marion Tennessee
Trichostema setaceum
MEM015765 Fayette Tennessee 29 Sep 1980 Vernon Bates Jr., Dan Morris, Sarah Warrington
Trichostema setaceum
TENN-V-0186590 Roane Tennessee
Trichostema setaceum
APSC0070241 Pulaski Kentucky 09 Oct 1988 Max Medley
Trichostema setaceum
UCHT023698 Marion Tennessee
Trichostema setaceum
UOS03675 Franklin Tennessee 11 Sep 2004 Mary P. Priestley
Trichostema setaceum
31234100733540 Barren Kentucky Charles Lapham
Trichostema setaceum
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