The genus Carex of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Carex communis Bailey, Fibrous Rooted Sedge (Section ACROCYSTIS)

Carex communis, as its name implies, is common and widespread in Renfrew County. It is distinguishable from other species of this section by its densely cespitose habit and strong upright culms.

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Achenes, perigynia and scales of Carex communis

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

Figure 2. Inflorescence.
Habit of Carex communis

Figure 3. Habit.
An occurrence map of Carex communis in Renfrew County

Figure 4. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
DAO 573851 K.W. Spicer 1988-June-15
DAO 573991 K.W. Spicer 1988-June-15
CAN 551313 A. Vogg 1988-May-21
CAN 525369, DAO 542250 S.J. Darbyshire 1985-June-15
CAN 438182 H. Simpson 1976-June-28
DAO 266721 M.I. Moore 1964-June-03
DAO 266724 M.I. Moore 1964-May-29
CAN 569844 M.I. Moore & T.C. Brayshaw 1962-June-20
CAN 569845 T.C. Brayshaw 1962-May-22
DAO 266720 M.I. Moore 1962-May-24
DAO 266700 J.M. Gillett & L.J. Van Rens 1959-June-03
DAO 266701 J.M. Gillett & L.J. Van Rens 1959-June-03
CAN 569842 A.W.H. Damman 1954-May-24