Pityrogramma argentea


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Noun1.Pityrogramma argentea - fern of southern tropical Africa having fronds with white undersides
fern - any of numerous flowerless and seedless vascular plants having true roots from a rhizome and fronds that uncurl upward; reproduce by spores
genus Pityrogramma, Pityrogramma - terrestrial tropical ferns having fronds with powdery yellowish or white undersides; sometimes placed in family Polypodiaceae or Adiantaceae