Carex richardsonii R. Br., Richardson’s Sedge (Section CLANDESTINAE)
Carex richardsonii is a rare species in Renfrew County found in alvars and limestone plains. The prominent reddish brown bracts and sheaths (Figures 3, 4 and 5) distinguish this species from the similar looking species in Section ACROCYSTIS.
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Figure 1. Achenes, perigynia and scales.

Figure 2. B&W scan of specimen showing habit.

Figure 3. Terminal inflorescence.

Figure 4. Lateral inflorescence.

Figure 5. Basal sheath of culm.

Figure 6. Habit.

Figure 7. Inflorescence.

Figure 8. Occurence map for Renfrew County and surrounding area.
Accession # | Collector | Date |
---|---|---|
DAO 859633 | A. Ward, S. Kyte, G. Gregorich, P.M. Catling & G. Mitrow | 2011-June-02 |
DAO 888120 | S.R. Brinker, M.J. Oldham & D. Coulson | 2010-June-22 |
DAO 871909 | G.A. Bickel | 2005-June-03 |
DAO 542170 | D.F. Brunton & K.L. McIntosh | 1986-May-25 |
CAN 487083 | S.J. Darbyshire & W.J. Crins | 1983-June-05 |