Although some ferns may be carcinogenic , the ostrich fern has been considered to be safe to eat either raw or cooked [5-9].
Although the ostrich fern accumulates some heavy metals , the symptoms reported in these outbreaks were not characteristic of heavy metal poisoning, and it is unlikely that absorption of heavy metals occurred at two different sites.
Although a toxin has not been identified in the fiddleheads of the ostrich fern, the findings in this report suggest it may be prudent to cook fiddleheads thoroughly (e.
Ostrich fern poisoning-western Canada and New York, 1994.
Ostrich fern ranges from Newfoundland to Alaska and British Colombia, south to northern California, the Midwest, and the Southern Appalachians.
Ostrich fern is easy to gather in great quantities and for that reason has long been a popular green to store up for the winter by canning, a tradition that I still carry on.
Interrupted fern Osmundea claytonia is abundant in wooded areas across much of the range of ostrich fern and likes partial shade on rich, moist to mucky soil.
The spores of lady fern are borne on the underside of the frond rather than on a separate one like those of ostrich fern are.
Lady fern fiddleheads are much thinner than those of ostrich fern and are also a lighter green.