Odontosoria biflora is a species of fern in the family Lindsaeaceae.

[1] As with other species in the family, it has been placed in different genera; synonyms include Sphenomeris biflora and Sphenomeris chinensis ssp.

[2] It is native to Southeast China, Korea, Japan and its offshore islands, Taiwan, and the Philippines.

[1] The fronds are leathery in texture, with the final segments being wedge-shaped.

In the northern Philippines, it is described as "common", being found on ridges and rocks at elevations of up to about 150 m.[3] Known in parts of the Philippines by the Ivatan name tubho, sun-dried leaves are used to make tubho tea.