Royal Fern Osmunda regalis

Osmunda regalis

Common Name: Royal fern

Osmunda regalis is a tall, deciduous, Missouri native fern which usually occurs on moist bluffs and ledges and along streams (sometimes growing in the water), primarily in the southeastern Ozark region of the State. Typically grows in clumps to 2-3' tall, but with constant moisture can reach 6' in height. Broad fronds have large, well-separated pinnae (leaflets) which give this fern an almost pea-family appearance. Fronds typically turn yellow to brown in autumn. Spores are located in brown, tassel-like, fertile clusters at the tips of the fronds, thus giving rise to the additional common name of flowering fern for this plant. Osmunda fiber used in the potting of orchids comes from the fibrous roots of these ferns.

Genus name honors Osmundus or Asmund, c. 1025, a Scandinavian writer of runes who helped prepare the way for the Swedish acceptance of Christianity.