Bracken fern (Pteridium aquilinum) with inset
Common bracken (Pteridium aquilinum) fern grows from large, dense, woody rhizomes and forms deciduous, stipitate (stalked), erect-to-spreading fronds with nonanastomosing veins. The pinnae are stalked, opposite or subopposite (inset). Fronds can range in length from 0.5 m (1.6 feet) to 4.5 m (14.7 feet).
Courtesy of Dr. Bryan Stegelmeier.
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