Eleocharis elliptica Kunth, Elliptic spikerush
Eleocharis elliptica is sparse in Renfrew County. It is found frequently in fens and calcareous wetlands, but also on beaches along the Ottawa River. It is easily identified by the distinctively decorated golden yellow achenes that persist after the scales are shed (Figure 2). Eleocharis elliptica is quite variable and can be difficult to separate from Eleocharis compressa. A thorough study of several Renfrew County populations suggests that our specimens should all be attributed to Eleocharis elliptica. See that discussion here: Eleocharis elliptica study.
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Figure 1. Inflorescence, achenes, scales and basal sheaths.
Figure 2. Inflorescence showing shed scales and persistent achenes.
Figure 3. Habit.
Figure 4. Occurence map for Renfrew County and surrounding area.
| Accession # | Collector | Date |
|---|---|---|
| DAO 859630 | A. Ward, S. Kyte, G. Gregorich, P.M. Catling & G. Mitrow | 2011-June-03 |
| DAO 859623 | A. Ward, S. Kyte, G. Gregorich, P.M. Catling & G. Mitrow | 2011-June-02 |
| CAN 549789 | A. Vogg | 1990-May-20 |
| CAN 551513 | A. Vogg | 1988-June-23 |
| CAN 551374, CAN 551379 | A. Vogg | 1988-June-04 |
| DAO 593491 | D.F. Brunton | 1987-August-26 |
| CAN 527085 | A. Vogg | 1986-August-24 |
| CAN 527072 | A. Vogg | 1986-August-19 |
| CAN 498237 | A. Vogg | 1984-August-04 |
| CAN 487234 | S.J. Darbyshire & W. J. Crins | 1983-June-05 |
| CAN 496836 | A. Vogg | 1982-August-12 |
| CAN 570156 | T.C. Brayshaw | 1962-August-06 |
| DAO 255493 | A.J. Breitung | 1948-July-25 |