Characteristics
Monocots
Zannichellia palustris L.
Horned Pond Weed
forb
9
**
Native
AGCP (OBL), EMP (OBL) (NWPL)
TN[SNR] KY[S3?] (State Rank)
G5 (Global Rank)
Anther Type
Basifixed
Armaments
No
Base Flower Color
Brown (incl. Maroon); Green
Carpel Number/Pistil
2
Duration
Perennial
Fruit Dehiscence
No
Fruit Type
Achene; Drupe
Fruit Wet/Dry
Dry; Wet
General Ecology
Aquatic
Growth Habit
forb
Inflorescence Position
axillary
Inflorescence Types
cyme; two-flowered
Leaf Arrangement
opposite; floating; submerged
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
No
Leaf Petiole Type
sessile
Leaf Type
grass-like
Leaf Venation
one-veined; parallel
Leaflet Margins
entire
Leaflet Number
0
Moisture Requirements
Hydric; Inundated
Natural Area Presence
PCSF
Ovary Position
Superior
Ovules per Carpel
1
Parent Rock
Calcareous; Limestone
Perianth Present
No
Petal Fusion
No
Petal Number
0
Pistil Complexity
Compound
Pistil Number
4; 5; 6; 7; 8; 9
Placentation Type
Apical
Sepal Fusion
No
Sepal Number
0
Soil pH
Alkaline
Stamen Number
1
Tepal Fusion
No
Tepal Number
0
Woody Herbaceous
Herbaceous
Classification
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
