Characteristics
Dicots
Callitriche heterophylla Pursh var. heterophylla
Common Water Starwort; Two Head Water Starwort
forb
4
**
Native
Armaments
No
Base Flower Color
Green
Carpel Number/Pistil
2
Duration
Annual; Perennial
Fruit Dehiscence
No
Fruit Type
Schizocarp
Fruit Wet/Dry
Dry
General Ecology
Terrestrial
Growth Habit
forb
Leaf Arrangement
opposite
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
No
Leaflet Number
0
Moisture Requirements
Hydric
Overall Flower Symmetry
Zygomorphic
Parent Rock
Calcareous; Chert; Limestone
Petal Number
x
Soil Composition
Mineral
Soil pH
Alkaline; Circumneutral
Stamen Number
1; 2
Unconsolidated Rock
Yes
Woody Herbaceous
Herbaceous
Classification
Plantaginales
Callitriche heterophylla Pursh var. heterophylla - Common Water Starwort; Two Head Water Starwort
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: