| Author | (Svenson) L.J. Harms | |
| Distribution | Scattered across the state, mostly in the northern half. We mapped counties based on specimens cited in the journal article by Gibbons & McMullen (2019, JBRIT 13: 71-81) and specimens at NCU annotated by one of the authors in 2018.
As mapped by Gibbons & McMullen (2019), mostly midwestern with scattered records eastward. NJ to KS, south to GA and TX. | |
| Abundance | The editors tentatively suggest a rank of [S1?] for the present time. | |
| Habitat | Creekside marsh, streamhead marshy meadow, "bog", depression in pine flatwoods, pond shore, meadow on farm, "bottom lands" Salisbury, "savannah" in Morrisville, Wake County. | |
| Phenology | March-September. | |
| Identification | E. verrucosa has significantly wider rhizomes than does E. tenuis, and rhizome internode length averages shorter. Tubercles are more depressed than in E. tenuis. See Weakley (2020) or Gibbons & McMullen (2019) for measurements of key characters. | |
| Taxonomic Comments | Formerly lumped within E. tenuis; see journal paper by Gibbons & McMullen (2019).
The genus Eleocharis, the spikerushes, are unusual members of the sedge family in that the culms (flowering stems) are round or oval (rarely triangular) in cross-section, rather than triangular in the great majority of our sedges. In addition, leaf blades are absent; just 1-2 basal sheaths are present at the base of the culm. There is a single, cylindrical or narrowly ovoid, spikelet of florets at the culm summit. Details of achene (seed) shape, color, ornamentation, bristle length, and beak (tubercle) shape and size, are critical ID factors. | |
| Other Common Name(s) | | |
| State Rank | [S1?] | |
| Global Rank | GNA | |
| State Status | | |
| US Status | | |
| USACE-agcp | | |
| USACE-emp | | |
