Amsonia illustris

ClassificationDicots
FamilyApocynaceae
Family (Traditional)Apocynaceae
GenusAmsonia
Species:Amsonia illustris Woodson
Common NameOzark Bluestar
Growth Habitforb
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Terrestrial; Growth Habit: forb; Region of Origin: North America; Reproductive Phenology: May; Leaf Arrangement: alternate; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: petiolate; Leaf Type: broadleaf; Leaf Venation: pinnate; Leaflet Margins: entire; Leaflet Number: 0; Anther Type: Basifixed; Base Flower Color: Blue; Carpel Number/Pistil: 2; Fruit Complexity: Multiple; Fruit Dehiscence: Yes; Fruit Type: Follicle; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Inflorescence Types: corymb/cyme/umbel; Ovary Position: Superior; Overall Flower Symmetry: Actinomorphic; Ovules per Carpel: 13+; Perianth Present: Yes; Pistil Complexity: Compound; Pistil Number: 1; Placentation Type: Marginal; Sepal Fusion: Yes; Sepal Number: 5; Sexuality: monoclinous; Sporangium Arrangement: N/A; Stamen Number: 5
C value 7
StatusNative; G4G5 (Global Rank)
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

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
Ecoregions
  • 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

Synonyms

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: McLean (KY), Marshall (KY), Marshall (TN), Maury (TN), Montgomery (TN), Rutherford (TN), Wilson (TN)

Herbaria represented by specimen data listed below: MTSU, APSC

Range of years during which specimens were collected: 1948 - 1986

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
APSC0029322 Marshall Tennessee
APSC
Amsonia illustris
APSC0029325 Maury Tennessee
APSC
Amsonia illustris
APSC0029327 Montgomery Tennessee 23 May 1948 Alfred Clebsch
APSC
Amsonia illustris
APSC0075026 McLean Kentucky
APSC
Amsonia illustris
APSC0029326 Montgomery Tennessee 04 Sep 1948 Alfred Clebsch
APSC
Amsonia illustris
MTSU018264 Rutherford Tennessee
MTSU
Amsonia illustris
APSC0048548 Wilson Tennessee
APSC
Amsonia illustris
APSC0068257 Marshall Kentucky 02 May 1986 Max Medley
APSC
Amsonia illustris
APSC0029324 Maury Tennessee
APSC
Amsonia illustris
APSC0048260 Rutherford Tennessee
APSC
Amsonia illustris
APSC0029321 Tennessee
APSC
Amsonia illustris
MTSU018263 Rutherford Tennessee
MTSU
Amsonia illustris
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Plant Photos

Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Dwayne Estes
Amsonia illustris - Theo Witsell
Amsonia illustris - Theo Witsell
Amsonia illustris - Theo Witsell
Amsonia illustris - Theo Witsell
Amsonia illustris - Theo Witsell
Amsonia illustris - Theo Witsell