54 ONOCLEA 



SENSITIVE FERN: Onoclea sensibilis. 



Sterile and fertile fronds dissimilar; sterile 

 fronds 1 to 3 feet high on long stipes, deeply pin- 

 natifid, the divisions long lance-shaped, wavy- 

 edged or deeply-lobed, the lower often distinct; 

 fertile fronds shorter, closely twice pinnate, the 

 pinnules rolled up into berry-like bodies enclosing 

 the sori, appearing later than the sterile. The 

 dried fertile fronds are conspicuous in the late fall 

 and early spring. 



Common in moist meadows and thickets; widely 

 distributed. 



NOTES. 



