Diplazium queenslandicum

Athyriaceae

Diplazium queenslandicum Tindale

Link to Australian Plant Name Index for publication details and synonyms: https://id.biodiversity.org.au/name/apni/77649

Rhizome erect, to 1 m long, scaly; scales brown, dull, with paler margins. Fronds arcuate. Stipe 60–100 cm long, black at the base, deeply 3-grooved. Lamina 3-pinnate, broadly triangular, 80–120 cm long, 60–90 cm wide, membranous, brittle, dark green (glossy when wet). Pinnules oblong, 4–12 mm long, 2–6 mm wide; base narrowly attached to the axis; margins lobed one-third of way to costule; apex broadly obtuse. Sori 1–3 mm long, 4–8 per pinnule, mostly single; indusium pale to dark brown, not fragile.

Endemic to NE QLD in the tablelands of the Wet Tropics and near Eungella.

Terrestrial in montane rainforest, often near streams.

Similar to Diplazium australe.

1a. Pinnules of fertile laminae tooched or lobed less than a third of the distance to the midvein; margins on the lower side decurrent; indusium fawn = D. australe

1b. Pinnules of fertile laminae lobed more than half-way to the midvein; margin on the lower side not decurrent indusium brown to dark brown = D. queenslandicum