The genus Carex of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Carex lasiocarpa Ehrh., Woolly-fruit Sedge (Section PALUDOSAE)

Carex lasiocarpa is common in Renfrew County. It is found in standing water around bogs. It is easily separated from Carex pellita because Carex lasiocarpa has wiry, involute leaves and bracts (Figure 5).

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Achenes, perigynia and scales of Carex lasiocarpa

Figure 1. Achenes, perigynia and scales.
Habit of Carex lasiocarpa

Figure 2. Habit.
Habit of Carex lasiocarpa

Figure 3. Habit.
Lateral spike of Carex lasiocarpa

Figure 4. Lateral pistillate spike.
Comparison of Carex lasiocarpa and Carex pellita bracts

Figure 5. Comparison of involute bracts of Carex lasiocarpa and flat bracts of Carex pellita.
Inflorescence of Carex lasiocarpa

Figure 6. Inflorescence.
Inflorescence of Carex lasiocarpa

Figure 7. Inflorescence.
An occurrence map of Carex lasiocarpa in Renfrew County

Figure 8. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
CAN 551524 A. Vogg 1988-July-07
CAN 551378 A. Vogg 1988-June-04
CAN 496928 A. Vogg, S. Morgan & K. MacDonald 1982-July-18
CAN 466074 A. Vogg & E. Ridgen 1982-June-19
DAO 349794 M.I. Moore 1962-June-10
CAN 569927 T.C. Brayshaw 1962-May-31
CAN 569929 T.C. Brayshaw 1960-July-06
CAN 569930 T.C. Brayshaw 1960-June-20
DAO 349777 G.M. Stirrett 1949-July-14