Amsonia illustris

Classification	Dicots
Family	Apocynaceae
Family (Traditional)	Apocynaceae
Genus	Amsonia
Species:	Amsonia illustris Woodson
Common Name	Ozark Bluestar
Growth Habit	forb
Plant Notes	**
Characteristics	Armaments: 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
Status	Native; G4G5 (Global Rank)
Specimen(s)	View and Download Specimen Details »

** Not applicable or data not available.

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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

Interior River Valleys and Hills
- Shawnee / Caseyville Hills
Mississippi Alluvial Plain
Mississippi Valley Loess Plains
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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: APSC, MTSU

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
APSC0048548	Wilson	Tennessee			APSC Amsonia illustris
APSC0029322	Marshall	Tennessee			APSC Amsonia illustris
APSC0029325	Maury	Tennessee			APSC Amsonia illustris
APSC0068257	Marshall	Kentucky	02 May 1986	Max Medley	APSC Amsonia illustris
APSC0029327	Montgomery	Tennessee	23 May 1948	Alfred Clebsch	APSC Amsonia illustris
APSC0029324	Maury	Tennessee			APSC Amsonia illustris
APSC0048260	Rutherford	Tennessee			APSC Amsonia illustris
APSC0075026	McLean	Kentucky			APSC Amsonia illustris
APSC0029326	Montgomery	Tennessee	04 Sep 1948	Alfred Clebsch	APSC Amsonia illustris
APSC0029321		Tennessee			APSC Amsonia illustris
MTSU018264	Rutherford	Tennessee			MTSU Amsonia illustris
MTSU018263	Rutherford	Tennessee			MTSU Amsonia illustris

View a List of All Ecological Communities

Amsonia illustris

Related Links

Species Distribution Map

Ecoregions

Synonyms

Specimens and Distribution

Plant Photos