osmund(redirected from St. Osmund)
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|Noun||1.||osmund - any fern of the genus Osmunda: large ferns with creeping rhizomes; naked sporangia are on modified fronds that resemble flower clusters|
fern - any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores
genus Osmunda - type genus of the Osmundaceae
ditch fern, French bracken, Osmunda regalis, royal fern, royal osmund, king fern - large deeply rooted fern of worldwide distribution with upright bipinnate compound tufted fronds
interrupted fern, Osmunda clatonia - North American fern having tall erect pinnate fronds and a few sporogenous pinnae at or near the center of the fertile fronds