Polystichum acrostichoides, known as Christmas fern, is native to eastern North America. It is easily separated from other species by its dimorphic leaves, with distal fertile pinnae that are contracted, and with confluent sori covering completely the abaxial surface. Photos taken in August 2004, in hardwood forest (Quercus sp.).
Observation Data
Classification & Common Names
- Class: Polypodiopsida
- Family: Dryopteridaceae
- Genus: Polystichum Roth
- Species: Polystichum acrostichoides (Michx.) Schott
- Var./Subsp.:
- Common name(s):
General Observation Data
- Date: 01-VIII-2004
- Habitat: Deciduous forest, Oak Forest
- Habit: Terrestrial
Additional Comments
Location
- Location: Williamsburg County – – – Virginia – United States.
- Coordinates: 37.4104,-76.7071 (estimated from map)
- Elevation: 20 m
