The genus Carex of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Carex hystericina Muhl. ex Willd., Porcupine Sedge (Section VESICARIAE)

Carex hystericina is common in the southeastern portion of Renfrew County and found in wet calcareous meadows and ditches.

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Achenes, perigynia and scales of Carex hystericina

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

Figure 2. Inflorescence.
Habit of Carex hystericina

Figure 3. Habit.
Inflorescence of Carex hystericina

Figure 4. Inflorescence.
An occurrence map of Carex hystericina in Renfrew County

Figure 5. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
DAO 691571 J.M. Reddoch 1989-July-01
CAN 551702 A. Vogg 1988-August-07
CAN 551617 A. Vogg 1988-July-27
CAN 551535 A. Vogg 1988-July-13
CAN 551518 A. Vogg 1988-June-23
DAO 573862 K.W. Spicer 1988-June-15
DAO 573968 K.W. Spicer 1988-June-15
DAO 547744 K.W. Spicer 1987-July-15
CAN 498234 A. Vogg 1984-August-04
CAN 497076 A. Vogg & H. Vogg 1983-July-24
CAN 497099 A. Vogg & H. Vogg 1983-July-24
CAN 496932 A. Vogg 1982-July-17
CAN 498541 A. Vogg & H. Vogg 1982-June-27
CAN 498554 A. Vogg 1982-June-26
CAN 569915 T.C. Brayshaw & W.J. Merilees 1962-August-23