Eleocharis compressa

Characteristics
Monocots
Cyperaceae
Eleocharis
Eleocharis compressa Sullivant var. compressa
Sharp Scale Spike Rush; Flat Stem Spike Rush
graminoid
7
**
Native
Armaments
No
Base Flower Color
Brown (incl. Maroon); Green
Carpel Number/Pistil
2; 7
Duration
Perennial
Fruit Complexity
Simple
Fruit Dehiscence
No
Fruit Type
Achene
Fruit Wet/Dry
Dry
General Ecology
Terrestrial; Mudflat/Wet Woods
Growth Habit
graminoid
Inflorescence Position
terminal
Inflorescence Types
spike
Leaf Arrangement
absent
Leaf Complexity
simple
Leaf Dissection
0
Leaf Duration
deciduous
Leaf Fragrance
No
Leaf Notes
Leaves two per culm, but reduced to sheaths, mucro, or awn (no blade)
Leaf Type
sheath with scale
Leaf Venation
parallel
Leaflet Number
0
Moisture Requirements
Xeric; Mesic; Hydric
Ovary Position
Superior
Ovules per Carpel
1
Parent Rock
Calcareous; Chert; Dolomite; Limestone; Sandstone
Perianth Present
No
Pistil Complexity
Compound
Pistil Number
1
Placentation Type
Basal
Soil Composition
Mineral
Soil pH
Acidic; Alkaline; Circumneutral
Stamen Number
3
Unconsolidated Rock
Yes
Unconsolidated Size Class
Sand; Silt
Woody Herbaceous
Herbaceous
View details of Herbarium specimens
** Not applicable or data not available.
Classification
Cyperales
Eleocharis
Eleocharis compressa Sullivant var. compressa - Sharp Scale Spike Rush; Flat Stem Spike Rush
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
Eleocharis compressa var. compressa - 13
Eleocharis compressa var. compressa - Dwayne Estes View Full Size
Eleocharis compressa var. compressa - 13
Eleocharis compressa var. compressa - Dwayne Estes View Full Size
Eleocharis compressa var. compressa - 13
Eleocharis compressa var. compressa - Dwayne Estes View Full Size
Eleocharis compressa var. compressa - 13
Eleocharis compressa var. compressa - Dwayne Estes View Full Size
Eleocharis compressa var. compressa - 18
Eleocharis compressa var. compressa - Sunny Fleming View Full Size
Eleocharis compressa var. compressa - 21
Eleocharis compressa var. compressa - Tara Littlefield View Full Size
Eleocharis compressa var. compressa - 21
Eleocharis compressa var. compressa - Tara Littlefield View Full Size
Eleocharis compressa var. compressa - 19
Eleocharis compressa var. compressa - Theo Witsell View Full Size