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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.


Rhizome short-creeping to suberect, stout. Leaf: stipe stout, fleshy, easily crushed, straw-colored except base generally blackened, base scaly, ×-section with 2 crescent-shaped vascular strands; blade generally >= 2-pinnate, pinnae of equal sides, ± glabrous or minutely hairy, veins free. Sporangia: sori ± round, ± oblong, or J-shaped; indusia 0, oblong, J-shaped, or reniform, laterally attached.
± 100 species: generally northern temperate, especially eastern Asia. (Greek: doorless, from enclosed sori)

Key to Athyrium

1. Sori generally round, ± near margin; indusia 0, marginal tooth often reflexed over sorus ..... A. distentifolium var. americanum

1' Sori oblong or J-shaped, ± not near margin; indusia oblong, J-shaped, or reniform, margin ± reflexed or not, but not over sorus ..... A. filix-femina var. cyclosorum


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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