Citation: A. Braun in Seub., Fl. Azor. 17 (1844).

Synonymy: Not Applicable

Common name: Large adders tongue.

Description:
Rhizome long, taproot-like, erect; roots numerous, a light yellowish brown, wiry; sterile lamina lanceolate or broadly elliptic, 3-6 cm long, 1.2-1.5 cm broad towards the base, abruptly tapering into the petiole; petiole firm, lower parts persistent and forming a brown papery sheath; fertile spikes emerging from the lower part of the base of the sterile lamina; spike large, 2-2.5 cm long, 2-3 mm broad, with 12-24 pairs of sporangia, borne on a stalk to 7 cm long.

	Ophioglossum polyphyllum
Image source: fig. 22b in Jessop J.P. & Toelken H.R. (Ed.) 1986. Flora of South Australia (4th edn).

Published illustration: Cunningham et al. (1982) Plants of western New South Wales, p. 27.

Distribution:  A solitary species which is never found in large numbers; probably more widespread, but poorly collected. S.Aust.: NW, LE, GT, FR, EA.   W.Aust.; N.T.; Qld; N.S.W.; Vic.   Africa; Arabia; India. Conservation status: native Flowering time: No flowering time is available

SA Distribution Map based on current data relating to specimens held in the State Herbarium of South Australia

Biology: No text

Author: Not yet available