Pteridophytes
Aspleniaceae
Spleenwort Family
Sensitive fernOnoclea sensibilis L.
- Stem: perennial; underground stem.
- Fertile Fronds: stalk 8”; blade with several pinnately arranged lobes, appressed to the midvein; contracted lobes bearing spherical clusters of spore-producing structures (sporangia); light brown when developing, dark brown when mature; the plants often not producing fertile fronds; development begins as early as mid-May and continues until early July.
- Habitat: common on wet prairies and marshes; also in wet, open places and in moist, open woods; usually found in patches.
- Bibliography from Biodiversity Heritage Library
- Vascular Plants of Iowa
Can be found in these counties: