The genus Cyperus of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Cyperus schweinitzii Torrey, Schweinitz's flatsedge

Cyperus schweinitzii is isolated to sand plains.

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Spikelets, achenes and scales of Cyperus schweinitzii

Figure 1. Spikelets, achenes and scales.
Inflorescence of Cyperus schweinitzii

Figure 2. Inflorescence.
Inflorescence of Cyperus schweinitzii

Figure 3. Inflorescence.
An occurrence map of Cyperus schweinitzii in Renfrew County

Figure 4. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
DAO 877394 G. Bickel 2009-August-31
CAN 585270, DAO 782838 D.F. Brunton 1999-July-22
CAN 585273 D.F. Brunton 1999-July-22
CAN 585285 D.F. Brunton 1998-October-15
CAN 551773 A. Vogg & G. Vogg 1989-August-21
CAN 570143 M.I. Moore 1961-August-31
DAO 246420 M.I. Moore 1961-August-31