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Royal Fern
royal fern
Royal fern, photographed at Loxahatchee National Wild Life Refuge, Boynton Beach, Palm Beach County, in March 2017.
royal fern
 

There are places on God's good earth where royal fern, in one form or another, doesn't grow. Just not many. Royal fern is everywhere, one of the few plants to be found on six of the seven continents.

We qualified that statement slightly because of a taxonomic difference of opinion over whether royal fern is really one species or two that are closely related. More on that in a bit.

Royal fern, Osmunda regalis var. Spectabilis, is a Florida native found in all 67 counties of the Sunshine State. It's also found throughout eastern and central North America, as far north as Newfoundland and Saskatchewan and as far south as Florida and Louisiana. It likes wet places, dome swamps, shallow swamps and marshes, bogs, stream banks and the like.

In the language of botantists, royal fern is double pinnate in form. The photo at left shows a single fern frond, the equivalent of a single leaf in other plants. Each "branch" coming from that central stem, or vein, is a pinna, or leaflet, aligned opposite each other, which are in turn made up by a number of pinnules that are slightly offset each other, or in alternate pattern. The effect is a rather unfernlike looking fern.

Royal fern, like all ferns, reproduces by spores rather than seeds. Spring is "blooming' season, for a lack of a better term, when spore producing parts form on the fronds. These fertile fronds don't fully unfurl the way the fronds shown on this page have, but instead arch inward and upward like plumes. Instead of bright green, they take on oranges, reds and browns, resembling flowers to some.

The name, royal fern, actually comes from Europe. Early naturalists believed our guy was the same fern species as found in Europe and in most of the rest of the globe. It got the name because it's one of the largest and most beautiful of ferns found on the continent.

 
 
royal fern
 

When Europeans came to America, the resemblance between our guy and the royal fern they saw back home was close enough that they considered the two be the same plant. They're still considered as different varieties of the same species, the Old World known as regalis (Osmunda regalis var. regalis), the American as spectabilis. Some argue that the two varieties are actually separate species.

There are various theories as to the origin of Osmunda. Some say it comes from the Saxon word for domestic peace, the Saxon word for god-protector, a name for the Viking god, Thor and a combination of Latin words for bone and to cleanse, referring to the plants' medicinal uses. There's also a legend that the wife and daughter of a waterman named Osmund hid themselves among the ferns during a Danish invasion of what is now England. Take your pick.

Royal fern, regardless of whether it's one species or two, has been a mainstay of herbalists everywhere it's found. It's been used to treat chronic coughs, diarrhea, jaundice, worms, arthritic pain, cuts and bruises. The Iroquis made a tea from it to treat various conditions. It has had horticultural uses as well — the fibrous roots have been used commercially as potting material for epiphytes and orchids.

Globally, the royal fern population is secure, but it is endangered in parts of its range. Iowa considers it threatened; New York lists it as exploitably vulnerable and Florida classifies it as commercially exploited. Royal fern is a member of Osumdaceae. Other common names: flowering fern, royal flowering fern and buckhorn break .

Photographs by David Sedore
 
 
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