Elatostema montanum Endl.

Fleshy, succulent-stemmed, perennial herb or subshrub, straggling to 1 m, monoecious. Leaf with petiole glabrous; lamina falcate or obliquely oblanceolate, 7–15 cm long, 2–5 cm wide, unequal at base, shallowly crenulate-dentate, especially in upper half, with teeth up to 1 mm long, acuminate at apex, glabrous; cystoliths abundant, linear and very short in lower epidermis, very short and pointed in upper epidermis. Male inflorescence shortly paniculate, 1–2 cm long. Female inflorescence shortly pedunculate, depressed-globose.

Confined to a few damp, shaded localities in the National Park. Grows on cliffs behind shaded streams (see Sykes & Atkinson 1988).