Eleocharis smallii

Family (Traditional)Cyperaceae
Species:Eleocharis smallii Britton
Common NameSquare stemmed spike rush
Growth Habitgraminoid
Plant Notes**
CharacteristicsArmaments: No; Milky Sap: No; Photosynthetic: Yes; Stipules: No; Woody Herbaceous: Herbaceous; Duration: Perennial; General Ecology: Mudflat; General Ecology: Terrestrial; Growth Habit: graminoid; Region of Origin: North America; Leaf Arrangement: absent; Leaf Complexity: simple; Leaf Dissection: 0; Leaf Fragrance: No; Leaf Persistance: Deciduous; Leaf Petiole Type: N/A (leaves absent); Leaf Rank: N/A; Leaf Type: sheath with scale; Leaf Venation: parallel; Leaflet Margins: N/A; Leaflet Number: 0; Base Flower Color: Brown (incl. Maroon); Base Flower Color: Green; Carpel Number/Pistil: 2; Fruit Complexity: Simple; Fruit Dehiscence: No; Fruit Type: Achene; Fruit Wet/Dry: Dry; Hypanthium Present: No; Inflorescence Position: terminal; Inflorescence Types: spike; Ovary Position: Superior; Overall Flower Symmetry: N/A; Ovules per Carpel: 1; Perianth Present: No; Petal Fusion: N/A; Petal Number: N/A; Pistil Complexity: Compound; Pistil Number: 1; Placentation Type: Basal; Sepal Fusion: N/A; Sepal Number: N/A; Sexuality: monoclinous; Sporangium Arrangement: N/A; Tepal Fusion: N/A; Tepal Number: N/A
C value 5
Specimen(s) View and Download Specimen Details »

** Not applicable or data not available.

Currently no photos are available for this plant.

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
  • 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


SynonymFull Citation
Eleocharis calva var. australis Eleocharis calva var. australis (Nees) St. John
Eleocharis mamillata Eleocharis mamillata H. Lindb.
Eleocharis palustris Eleocharis palustris (L.) Roem. & Schult.
Eleocharis palustris var. australis Eleocharis palustris var. australis Nees
Eleocharis palustris var. major Eleocharis palustris var. major Sond
Eleocharis palustris var. vigens Eleocharis palustris var. vigens Bailey
Eleocharis perlonga Eleocharis perlonga Fern. & Brack.
Eleocharis smallii Eleocharis smallii Britt.
Eleocharis smallii var. major Eleocharis smallii var. major (Sonder) Seymour
Eleocharis xyridiformis Eleocharis xyridiformis Fern. & Brack.
Scirpus mamillata Scirpus mamillata

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: McCracken (KY)

Herbaria represented by specimen data listed below: MEM, VDB

Range of years during which specimens were collected: 1970 - 1970

Accession No. (click for full details) County State Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
MEM006834 McCracken Kentucky 17 Jun 1970 Raymond Athey
Eleocharis smallii
BRIT164245 Tennessee
Eleocharis xyridiformis
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