Rhizome stout, abbreviated, forming a short stock ± clad in long red-brown hairs; stipites crowded. Stipes stout, 5-10 cm. long or more, sts slightly winged in upper part, bristly-hairy at base, sts bearing also sparse deciduous hairs. Rhachis stout, narrowly winged throughout or in upper part only. Lamina 7-20 cm. or more long, lanceolate to ovate-lanceolate to oblong, acuminate, 3-4-pinnatifid; lower pinnae us. reduced; final segs under 1 mm. wide, linear, obtuse; veinlets less stout than in T. elongatum. Sori on short lateral segs near base of upper margins of pinnules. Indusium c. 1 mm. long, free, cylindric to funnel-form, winged, dilated at mouth. Receptacle slender, far exserted, up to 15 mm. long.
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