Photo by Brad Slaughter
Medium-sized fern (40-60 cm) of southern acidic swamps; sterile fronds broadly elliptical, with once-divided or deeply lobed leaves; fertile fronds with pinnae much narrowed, bearing chain-like rows of sori on the underside.
Status and Rank
- State Status: X - Presumed extirpated (legally 'threatened' if rediscovered)
- State Rank: SX - Presumed extirpated
- Global Rank: G5 - Secure
|County Name||Number of Occurrences||Year Last Observed|
Updated 05/08/2013. Information is summarized from MNFI's database of rare species and community occurrences. Data may not reflect true distribution since much of the state has not been thoroughly surveyed.
Netted chain-fern was found in a swamp near South Haven, growing under a sparse canopy. In general it favors acidic habitats. It was last documented in Michigan in 1880.
Natural Community Types
Red maple, yellow birch, poison sumac, royal fern, and Carex seorsa.
Though not seen for over a century, it is thought that this species may be extant, and needs to be sought. If found, protection of habitat and maintenance of hydrology would be the primary management concerns.
General Survey Guidelines
Random meander search covers areas that appear likely to have rare taxa, based on habitat and the judgement of the investigator.
- Meander search
Survey Period: From first week of June to fourth week of August
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