Asplenium tenerum is a species of fern in the family Aspleniaceae. It is a perennial lithophyte or epiphyte native to tropical Asia, Korea, Queensland, the tropical Pacific Islands, and the Seychelles.
The species was described in 1786 by Georg Forster. Two varieties are accepted, var. pallidum and var. tenerum. Var. pallidum is endemic to Java.
The IUCN Red List assesses the synonym Asplenium tenuiculum as Endangered, and synonym A. complanatum as Critically Endangered.
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