Pteridium arachnoideum (Kaulf.) Maxon

Bracken fern, bracken

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8/8/2009 · Nashua River Rail Trail, Groton, Mass­a­chu­setts
≈ 21 × 14" (52 × 34 cm)

The ferns are all aligned in the same direction. This wasn’t the direction of sunlight, but it is probably the average direction of the most light. · 6/18/2016 · Pearl Hill State Park, Ashby, Mass­a­chu­setts

9/18/2009 · Acadia National Park, Bar Harbor, Maine
≈ 33 × 26" (82 × 65 cm) ID is uncertain

9/14/2009 · Near Nashoba Hospital, Ayer, Mass­a­chu­setts
≈ 21 × 14" (52 × 34 cm) ID is uncertain

Pteridium arachnoideum description by Thomas H. Kent, last updated 11 Jul 2023.

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5/20/2012 · J. Harry Rich State Forest, Groton, Mass­a­chu­setts
≈ 14 × 9" (35 × 23 cm)

I don't know the pathogen. · 8/16/2012 · Otter River State Forest, Nature Trail, Baldwinville, Mass­a­chu­setts
≈ 7 × 4½" (17 × 11 cm)

9/14/2009 · Near Nashoba Hospital, Ayer, Mass­a­chu­setts
≈ 21 × 14" (52 × 34 cm) ID is uncertain

6/2/2014 · Big Bear Mountain, Brookline, Mass­a­chu­setts
≈ 12 × 8" (31 × 21 cm)

6/2/2014 · Big Bear Mountain, Brookline, Mass­a­chu­setts
≈ 12 × 8" (31 × 21 cm)

Range:

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