This section is from the book "The Commonly Occurring Wild Plants Of Canada", by Henry Byron Spotton. Also available from Amazon: The Commonly Occurring Wild Plants Of Canada.
Herbs somewhat resembling those of the last Order, but the culms are hollow except at the joints, and the sheaths of the leaves are split on the opposite side of the culm from the blade.

Fig. 259.
Fig. 260.
Fig. 261.
 
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