The genus Carex of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Carex pseudocyperus L., Cyperus-like Sedge (Section VESICARIAE)

Carex pseudocyperus is common and widespread in Renfrew County found on margins of lakes and ponds. The perigynia teeth are sharp enough and hard enough to easily penetrate the toughest skin.

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Achenes, perigynia and scales of Carex pseudocyperus

Figure 1. Achenes, perigynia and scales.
Inflorescence of Carex pseudocyperus

Figure 2. Inflorescence.
Inflorescence of Carex pseudocyperus

Figure 3. Inflorescence.
Habit of Carex pseudocyperus

Figure 4. Natural setting.
An occurrence map of Carex pseudocyperus in Renfrew County

Figure 5. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
CAN 585305 D.F. Brunton 1999-July-21
DAO 573876 K.W. Spicer 1988-June-29
DAO 573967 K.W. Spicer 1988-June-15
CAN 547580 S.J. Darbyshire, A. Goddard & A. Vogg 1988-June-11
CAN 533439 A. Vogg 1987-September-05
CAN 497235 A. Vogg 1983-August-20
CAN 497265 A. Vogg 1983-August-20
CAN 497121 A. Vogg 1983-August-06
CAN 496894 A. Vogg & H. Vogg 1982-August-02
CAN 496933 A. Vogg 1982-July-17
CAN 456185 D.F. Brunton 1980-September-22
CAN 569914 M.I. Moore & G. Wikhammer 1976-July-25
CAN 570011 T.C. Brayshaw 1965-September-11
CAN 396551 J.H. Russ 1965-June-29
DAO 359973 M.I. Moore 1964-August-09
CAN 570012 T.C. Brayshaw 1962-June-23
CAN 570010 T.C. Brayshaw 1960-August-30