Characteristics Athyrium filix-femina

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leaflets , sori



unrolling young frond


athyrium filix-femina commonly split 2 species, a. angustum (narrow lady fern) , a. asplenioides (southern lady fern). southern lady fern has broader frond, @ base.


both species cespitose (the fronds arising central point clump rather along rhizome). deciduous fronds light yellow-green, 20–90 centimetres (7.9–35.4 in) long , 5–25 cm (2.0–9.8 in) broad. sori appear dots on underside of frond, 1–6 per pinnule. covered prominently whitish brown reniform (kidney-shaped) indusium. fronds dissected, being 3-pinnate. stipe may bear long, pale brown, papery scales @ base. spores yellow on a. angustum , dark brown on a. asplenioides.







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