Plant Life of the Monastery of the Holy Spirit
by Jim Allison
DENNSTAEDTIACEAE
Pteridium aquilinum (Linnaeus) Kuhn ssp. pseudocaudatum (Clute) Hultén [Pteridium aquilinum (Linnaeus) Kuhn var. pseudocaudatum (Clute) Heller], "tailed bracken"
Monastery of the Holy Spirit, 2012-07-20
