The genus Rhynchospora of Renfrew County:
A comparative study

By Grant A. Bickel, 2020

Rhynchospora alba (L.) Vahl, White beakrush

Rhynchospora alba is common in the northwestern portion of Renfrew County, found in bogs and poor fens.

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Inflorescence, achenes and scales of Rhynchospora alba

Figure 1. Inflorescence, achenes and scales.
Habit of Rhynchospora alba

Figure 2. A dense population of Rhynchospora alba growing with Eriophorum virginicum.
An occurrence map of Rhynchospora alba in Renfrew County

Figure 3. Occurence map for Renfrew County and surrounding area.
Accession records for specimens from Renfrew County
Accession # Collector Date
DAO 683936 W.J. Crins 1993-August-24
CAN 526918 A. Vogg 1985-July-14
CAN 438208 H. Simpson 1976-July-21
CAN 570211 T.C. Brayshaw 1961-August-17
DAO 256344 M.I. Moore 1961-August-06
DAO 256331 W.G. Dore & A.J. Breitung 1948-September-19
DAO 256653 W.G. Dore & A.J. Breitung 1948-September-16
CAN 196516, DAO 256354 A.J. Breitung 1948-July-24