Dryopteris celsa log fern Aspleniaceae DRCE; R, t;

  

Dryopteris celsa.Tropicos, botanical information system at the Missouri Botanical Garden ww.tropicos.org. (Accessed 3/2014).

Dryopteris celsa is a fern to 1.2 m tall, from a creeping rhizome. 

Leaves deciduous, stalk to 50 cm long, scales large, dark center, pale margin, and hair-like pale brown scales; blade 35-60 cm long, 15-30 cm wide, not scaly, egg-shaped to oblong, gradually tapered to tip, base not tapered much, pinnate, leaflets to 18 pairs, pinnately lobed, largest leaflets with 12-15 pairs lobes to 2.5 cm long, margins distantly toothed, basal leaflets narrowed below, lowest segments shorter than those adjacent. 

Spore cases midway between margin and midrib. 

Wetland status: OBL. 

Frequency in NYC: Rare; NYS S1, E. 

Origin: Mostly southern U.S. north to NJ, PA with rare disjunct populations in NYS. 

Habitat: On rotting logs or rich, moist to wet soil.