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Pteridium arachnoideum (Kaulf.) Maxon

Bracken fern

KingdomPlantaePlants, but not fungi, lichens, or algae
SubkingdomTracheobiontaVascular plants—plants with a “circulatory system” for delivering water and nutrients
DivisionPteridophytaFerns
ClassFilicopsida“Leptosporangiate” (has to do with how their spores form) ferns—includes most ferns
OrderPolypodialesPolypod ferns
FamilyDennstaedtiaceaeAfter August William Dennstedt (1776-1826), German physician and botanist, burgomaster of Magdala, director of the Belvedere garden near Weimar, and author of a work entitled Hortus Belvedereanus, a compilation of some 1500 plants. I have no information as to why the family name is spelled differently than his name
GenusPteridiumA diminutive of Pteris, a fern genus
SpeciesarachnoideumResembling a spider

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Pteridium arachnoideum (bracken fern)

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

Pteridium arachnoideum (bracken fern)

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

Pteridium aquilinum

Pteridium aquilinum (L.) Kuhn var. arachnoideum (Kaulf.) Brade

 

Pteridium arachnoideum description by Thomas H. Kent, last updated 5 Oct 2021.

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Pteridium arachnoideum (bracken fern)

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

Pteridium arachnoideum (bracken fern)

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

Pteridium arachnoideum (bracken fern)

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

Range:

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