Amsonia illustris

Characteristics
Dicots
Apocynaceae
Amsonia
Amsonia illustris Woodson
Ozark Bluestar; Shining Bluestar; Ozark Blue Star; Shining Blue Star
forb
7
**
Native G4G5 (Global Rank)
Anther Type
Basifixed
Armaments
No
Base Flower Color
Blue
Carpel Number/Pistil
2
Duration
Perennial
Fruit Complexity
Multiple
Fruit Dehiscence
Yes
Fruit Type
Follicle
Fruit Wet/Dry
Dry
General Ecology
Terrestrial
Growth Habit
forb
Inflorescence Position
terminal
Inflorescence Types
cyme
Leaf Arrangement
alternate
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
No
Leaf Petiole Type
petiolate
Leaf Type
broadleaf
Leaf Venation
pinnate
Leaflet Margins
entire
Leaflet Number
0
Moisture Requirements
Xeric
Ovary Position
Superior
Overall Flower Symmetry
Actinomorphic
Ovules per Carpel
>12
Parent Rock
Sandstone
Perianth Present
Yes
Pistil Complexity
Compound
Pistil Number
1
Placentation Type
Marginal
Sepal Fusion
Yes
Sepal Number
5
Soil Composition
Mineral; Organic
Soil pH
Acidic
Stamen Number
5
Unconsolidated Rock
No; Yes
Unconsolidated Size Class
Clay; Cobble; Gravel; Loam; Sand
Woody Herbaceous
Herbaceous
View details of Herbarium specimens
** Not applicable or data not available.
Classification
Gentianales
Amsonia
Amsonia illustris Woodson - Ozark Bluestar; Shining Bluestar; Ozark Blue Star; Shining Blue Star
Species Distribution Map

This species has been reported in the counties highlighted in the interactive distribution map below. Click on a county to display 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.

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
  • Interior River Valleys and Hills
    • Shawnee / Caseyville Hills
  • Mississippi Alluvial Plain
  • Mississippi Valley Loess Plains
Synonyms
Specimens and Distribution

Click on an Accession Number to view additional details about the specimen.

Range of years during which specimens were collected:

Plant Photos
Amsonia illustris - 13
Amsonia illustris - Dwayne Estes View Full Size
Amsonia illustris - 13
Amsonia illustris - Dwayne Estes View Full Size
Amsonia illustris - 13
Amsonia illustris - Dwayne Estes View Full Size
Amsonia illustris - 13
Amsonia illustris - Dwayne Estes View Full Size
Amsonia illustris - 13
Amsonia illustris - Dwayne Estes View Full Size
Amsonia illustris - 13
Amsonia illustris - Dwayne Estes View Full Size
Amsonia illustris - 13
Amsonia illustris - Dwayne Estes View Full Size
Amsonia illustris - 19
Amsonia illustris - Theo Witsell View Full Size
Amsonia illustris - 19
Amsonia illustris - Theo Witsell View Full Size
Amsonia illustris - 19
Amsonia illustris - Theo Witsell View Full Size