Habit: 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.
Species In Genus: +- 100 species: generally northern temperate, especially eastern Asia.
Etymology: (Greek: doorless, from enclosed sori)
Jepson eFlora Author: Carl J. Rothfels & Alan R. Smith
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)Key to Athyrium
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