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Pteris aquilina
L. (basionym)
Pteridium aquilinum
subsp.
aquilinum
[
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- Europe (except NE), SW Asia, NW Africa
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Bioussac, Charente, France
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Bioussac, Charente, France
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Paslieres, Auvergne, France
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Paslieres, Auvergne, France
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Monte Arcosu, Sardinia, Italy
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near Mitcheldean, Herefordshire, UK
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Young fronds, Czechia
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Young frond; Mop End, Amersham, Bucks, UK
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Watersfield Common, Watersfield, West Sussex, UK
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Saint-Leger-Triey, Cote-d'Or, France
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In autumn; Fontainebleau, France
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Large clonal colony in autumn; Cap Sizun, Finistere, France
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With salt spray damage; Pointe du Raz, western Brittany, France
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Sierra Madrona, Spain
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Klavdievo, Borodianka Raion, Kiev Oblast, Ukraine
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Lieberoser Heide, Brandenburg, Germany
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Schwarzenberg, Vorarlberg, Austria.
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Ceuta, NW Africa
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Eflani, Karabuk, Turkey
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France
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Netherlands
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Netherlands
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Commanster, High Ardennes, Belgium
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Detail of sori; Rechterbach, Belgium
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Underside of pinna; Goleniow, NW Poland
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Cross-section of stem (nl:dwarsdoorsnede stengel); Netherlands
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Rhizome (nl:wortelstok); Netherlands
Pteridium aquilinum
subsp.
pinetorum
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- NE Europe, C Europe (Alps & Carpathians), NW Asia
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?emeri National Park, Tukuma, Latvia
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Lithuania
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In autumn; Estonia
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Jeleniak Mikuliny, Silesia, Poland
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Jeleniak Mikuliny, Silesia, Poland
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Erzgebirge, Germany
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Brunnen, Schwyz, Switzerland
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Bern, Switzerland
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Bern, Switzerland
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Bern, Switzerland
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Bern, Switzerland
Pteridium aquilinum
subsp.
japonicum
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- NE Asia
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Young frond; Japan
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Young frond; Japan
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Young frond; Japan
Pteridium aquilinum
subsp.
latiusculum
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- N North America
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Pancake Bay Provincial Park, Ontario, Canada
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Wisconsin State Natural Area #612, Wisconsin, USA
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Mackinac County, Michigan, USA
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Seney National Wildlife Refuge, Michigan, USA
Pteridium aquilinum
subsp.
pubescens
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- W North America
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Pike and San Isabel National Forests, Colorado, USA
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Rocky Mountain National Park, Colorado, USA
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Rocky Mountain National Park, Colorado, USA
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Umatilla National Forest, Oregon, USA
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Idaho, USA
Pteridium aquilinum
subsp.
decompositum
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- Hawaii (endemic)
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?Aiea Loop Trail, O?ahu, Hawaii
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?Aiea Loop Trail, O?ahu, Hawaii
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?Aiea Loop Trail, O?ahu, Hawaii
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Polipoli, Maui, Hawaii
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Polipoli, Maui, Hawaii
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Auwahi, Maui, Hawaii
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Auwahi, Maui, Hawaii
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Haleakala National Park, Maui, Hawaii
For subspecies treatment
- Thomson, J. A. (2004). Towards a taxonomic revision of Pteridium (Dennstaedtiaceae).
Telopea
10 (4): 793-804
pdf full text
.
- Der, J. P., Thomson, J. A., Stratford, J. K., & Wolf, P. G. (2009). Global chloroplast phylogeny and biogeography of bracken (Pteridium; Dennstaedtiaceae).
Amer. J. Bot
. 96 (5): 1041-1049
pdf full text
.