The genus Cyperus of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Cyperus lupulinus (Sprengel) Marcks, Hop flatsedge

Cyperus lupulinus is found on dry back beaches and dunes along the Ottawa River.

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Inflorescence, spikelet, achenes and scales of Cyperus lupulinus

Figure 1. Inflorescence, spikelet, achenes and scales.
Habit of Cyperus lupulinus

Figure 2. Habit.
Inflorescence of Cyperus lupulinus

Figure 3. Inflorescence.
Inflorescences of Cyperus lupulinus

Figure 4. Inflorescences.
An occurrence map of Cyperus lupulinus in Renfrew County

Figure 5. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
DAO 725388 P.M. Catling 1999-July-14
CAN 585367 D.F. Brunton 1998-October-05
CAN 585346 D.F. Brunton 1998-September-29
DAO 669081 P.M. Catling & S.E. Carbyn 1993-September-22
DAO 669102 P.M. Catling & S.E. Carbyn 1993-September-22