The genus Carex of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Carex houghtoniana Torr. ex Dew., Houghton’s Sedge (Section PALUDOSAE)

Carex houghtoniana is common in Renfrew County. It is found most frequently in disturbed barren soils.

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Achenes, perigynia and scales of Carex houghtoniana

Figure 1. Achenes, perigynia and scales.
Lateral spike of Carex houghtoniana

Figure 2. Lateral pistillate spike.
Inflorescence of Carex houghtoniana

Figure 3. Inflorescence.
Habit of Carex houghtoniana

Figure 4. Habit.
An occurrence map of Carex houghtoniana in Renfrew County

Figure 5. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
DAO 669073 P.M. Catling & S.E. Carbyn 1993-September-22
CAN 551500 A. Vogg 1988-July-03
CAN 498249 A. Vogg 1984-September-22
DAO 833967 R. Beschell & R. Hainault 1966-July-20
CAN 569906 T.C. Brayshaw 1962-June-30
CAN 569911 T.C. Brayshaw 1962-June-22
CAN 569912 T.C. Brayshaw 1962-June-21
CAN 569907 T.C. Brayshaw 1962-June-9
CAN 262151 J.S. Rowe 1958-June-18
DAO 349212 D.B.O. Savile & J.A. Parmelee 1952-June-27
DAO 349213 A.J. Breitung 1948-July-18
DAO 349211 W.H. Minshall 1941-June-09