Dennstaedtiaceae of Maine
(Kingdom Plantae, Monilophytes)


a project of
V. F. Thomas Co. - 167 Thorne Mountain Road - Canton, Maine  04221
info@vfthomas.com


(updated 29 January 2020)


Dennstaedtiaceae - bracken fern family
   Sori covered by a false indusium.
   Rhizomes pubescent with jointed hairs.

Maine is home to 2 species in 2 genera (hybrids excluded). If you already know which species you have or are interested in learning about, click on the appropriate species link below. Otherwise, to determine which genus that the plant in question falls into, refer to the table immediately below the species list.
   Dennstaedtia (1 species)
      Dennstaedtia punctilobula - eastern hay-scented fern
   Pteridium (1 species)
      Pteridium aquilinum - bracken fern




false indusium morphology leaf width char. 3 char. 4 char. 5 char. 6
Dennstaedtia reflexed tooth or lobe of leaflet/leafule 12–25(–30) cm
Pteridium revolute leaf margin (25–)40–70 cm


Dennstaedtia (hay-scented fern)
[information to be added]

Dennstaedtia punctilobula (eastern hay-scented fern) - single leaf (lower left) and false indusia (lower right)
   
(click on an image to enlarge)

Venation:

(click on image to enlarge)


Pteridium (bracken fern)
[information to be added]

Pteridium aquilinum (bracken fern) - single leaf (lower left) and false indusia (lower right)
   
(click on an image to enlarge)


Note:
   1. Taxonomy and nomenclature follow Flora Novae Angliae by Arthur Haines (2011, Yale University Press, ISBN 978-0-300-17154-9).