The genus Eleocharis of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Eleocharis palustris (L.) Roemer & Schultes, Common spikerush

Eleocharis palustris is common in Renfrew County. Eleocharis palustris is always found submerged in shallow water and in dense populations. It has robust culms and when mature, it is unmistakable.

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Inflorescence, achenes, scales and basal sheaths of Eleocharis palustris

Figure 1. Inflorescence, achenes, scales and basal sheaths.
Inflorescences of Eleocharis palustris

Figure 2. Inflorescences.
An occurrence map of Eleocharis palustris in Renfrew County

Figure 3. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
CAN 551538 A. Vogg & H. Vogg 1988-July-13
DAO 585205 D.F. Brunton 1987-August-26
DAO 585203 D.F. Brunton 1987-August-26
CAN 497319 A. Vogg & H. Vogg 1983-August-21
DAO 294276 S.J. Darbyshire & W.G. Dore 1981-August-19
CAN 438173 H. Simpson 1976-June-22
CAN 570167 T.C. Brayshaw 1962-August-06
CAN 570169 T.C. Brayshaw 1962-July-14
DAO 254725 J.H. Soper 1961-July-09
CAN 570168 T.C. Brayshaw
CAN 570177 T.C. Brayshaw 1960-September-09
CAN 570178 T.C. Brayshaw & L.J. Forcier 1960-July-06
CAN 570170 T.C. Brayshaw 1960-June-20
DAO 254698 J.A. Calder & D.B.O Sevile 1952-August-06
DAO 254692 J.A. Calder 1952-August-06
DAO 255162 A.J. Breitung 1948-August-01