The genus Carex of Renfrew County:
A comparative study

By Grant A. Bickel, 2022

Section OVALES

Section OVALES is said to be one of the most difficult sections however, all of these species are clearly distinctive under close examination. Twelve species are listed for Renfrew County but four of these are rare or incompletely documented. The eight most common species are compared in the photographs below. Some recent flora have replaced the Section name OVALES with CYPEROIDEAE.

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Comparison of achenes, perigynia and scales of Section Ovales

Figure 1. Achenes, perigynia and scales of the most common species in Section Ovales. All to same scale.
Comparison of inflorescences of Section Ovales

Figure 2. Inflorescences of the most common species in Section Ovales. All to same scale.