The linear or deltate leaves, about 20-200 per plant, are mostly in terminal rosettes but with some scattered along the elongate stem.

Inflorescences are 4–7 cm long and produces a single white or pink flower that blooms from March to September in the southern hemisphere.

S. pedunculatum's distribution is scattered in the tropical areas of Queensland and the Northern Territory and isolated in the Aru Islands.

Its habitat is recorded as being damp, sandy soils in open Melaleuca viridiflora communities.

It's been found in association with Drosera, Schoenus, and Utricularia species.