The genus Carex of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Section AMMOGLOCHIN

Only one species from Section AMMOGLOCHIN is found in Renfrew County.

Carex siccata Dew., Dry-spike Sedge

Carex siccata is a plant of sandy openings in pine plantations (Figure 4), sand dunes, and sandy fields. As seen from the distribution map, this species appears to be concentrated in the northwestern portion of Renfrew County where sandy loam/loamy sand is the dominant soil type. Plants are colonial on long rhizomes (Figure 4).

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Achenes, perigynia and scales of Carex siccata

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

Figure 2. Inflorescence.
Habit of Carex siccata

Figure 3. B&W scan of specimens showing habit.
Habit of Carex siccata

Figure 4. Dense colony in Red Pine plantation.
An occurrence map of Carex siccata in Renfrew County

Figure 5. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
DAO 671409 S.E. Carbyn 1994-May-28
DAO 669069 P.M. Catling & S.E. Carbyn 1993-Sept-22
DAO 668468 S.E. Carbyn 1993-July-06
DAO 668470 S.E. Carbyn 1993-July-06
DAO 668484 S.E. Carbyn 1993-July-06
DAO 671404 P.M. Catling & S.E. Carbyn 1993-June-17
DAO 671412 P.M. Catling & S.E. Carbyn 1993-June-17
CAN 568565 D.F. Brunton 1990-May-21
CAN 568568 D.F. Brunton 1990-May-21
CAN 568571 D.F. Brunton 1990-May-14
DAO 573940 K.W. Spicer 1988-August-18
CAN 525379 S. Darbyshire 1985-June-15
DAO 294274 S.J. Darbyshire 1981-August-19
CAN 468010 S. Darbyshire 1981-July-09
CAN 457061 S. Darbyshire 1981-May-31
DAO 329046 S. Hay & C. Morisset 1980-August-23
CAN 570051 M.I. Moore 1970-August-26
CAN 570053 M.I. Moore 1968-July-14
CAN 570054 M.I. Moore 1968-June-05
DAO 124933 M.I. Moore 1965-June-15
DAO 124940 M.I. Moore 1964-August-19
DAO 124939 M.I. Moore 1964
CAN 570050 T.C. Brayshaw 1962-June-08
CAN 262150 J.S. Rowe 1958-June-26
CAN 570049 A.W.H. Damman 1954-May-22
DAO 124934 A.J. Breitung 1948-July-19
CAN 585306 missing missing