Royal Osmund

The royal osmund ( Osmunda regalis ) is a Fougère of the family of the Osmundaceae .

Synonymous: Osmunda plumieri Tausch, Aphyllocalpa regalis (L.) Lenient Lag., D.Garcia &, Ophioglossum osmunda Stokes, Struthiopteris regalis (L.) Bernh.

Other common nouns: royal fern, flowered fern.

History of the name

The specific epithet regalis means “royal”. The name of kind was baptized Osmunda by Mathias of Obel. It would derive from the Germanique Osmund , another name of the Scandinavian god Thor. Another assumption makes it derive from a word made up of the Latin bone which indicates the mouth, and mundo , “to purify, clean”, referring to the properties Antiputride S of certain ferns.

Description

Royal osmund is large a Fougère in tuft (0,5 to 1,5 m in diameter) of color clear green.

The sling S can reach 2 m length and they are Bipenné are. Primary divisions are almost Opposé are and secondary divisions are Lancéolé are, whole and sometimes slightly Denticulé be.

The sling S are of two types: some are sterile and others are fertile with, at the top, a Panicule of Sporange S of beige color rosy to brown russet-red.

The Sporange S derive from the transformation of the Foliole s.

Period of Sporulation: May at July.
Mode of dissemination: anémochore.

Life cycle

Each year, in spring, royal osmund reappears of the bud S of its underground stem. News stick S, high and breakable unrolls their woolly head slowly.

In summer, the slings resulting from the same foot carry coast beside the sheets to Sporange S and of the sterile sheets. Those carrying the sporanges, squater and thick, are granulous. Whereas the sterile warp ends remain at the base, the fertile part of the sheet with its panicles drawn up at the top, light, of a pretty beige color rosy, simulates so well a Inflorescence which one calls fern sometimes osmund “flowered”.

Soon, the vein of the fertile sights covers sporanges in tight groupings which open with maturity. The osmund sporange has a particular device of opening which cuts out it in two symmetrical valves.

Habitat

Royal osmund saw on poor grounds enough Acide S like the mediums sandy, argillaceous and boggy. These mediums must be characterized by a strong moisture. One generally meets it under cover of wood marshy or under Aulne S and Saule S in edge of river.

Geographical distribution

Royal osmund affectionate areas where the winter climate is relatively soft. Under our latitudes, one hardly meets it beyond 700 m of altitude.

This large Fern being in the process of rarefaction, it is protected on the unit from the French territory, or is subjected to regulation in Alsace-Lorraine, Burgundy, Champagne-Ardenne, Île-de-France, Center, High-Normandy, Picardy, Franche-Comté, Nord-Pas-de-Calais, Provence-Alp-Coast of Azure.

One can in particular meet some in the Regional natural park of the Vosges of North. One also finds some in Forêt of Rambouillet like in the forests in the north of Paris such as the Forêt of Montmorency as well as the Forêt of Écouen.

Uses

medicinal Use: the root S of royal osmund have various properties: diuretic, astringent, tonic and purgative in particular.
horticultural Use: this species presents a Rhizome thick (“stock”) which is used as support with the culture of the orchises.

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