Shonia tristigma subsp. borealis Halford & R.J.F.Hend.
Halford, D.A. & Henderson, R.J.F. (2005) Austrobaileya 7: 220. Type: Queensland, Tozers Gap, 30 June 1994, P.I. Forster PIF15396. Holo: BRI; Iso: K, MEL, NSW, QRS.
Usually flowers and fruits as a shrub about 1-3 m tall.
Flowers small, about 2-3 mm diam. Female flowers solitary, male flowers in racemes. Male flowers: Flowers with small and numerous stamens, crowded on a hemispherical receptacle. Anthers globose, filaments about 0.5 mm long. Female flowers: Flowers with three recurved style branches each about 1.5 mm long.
Features not available.
The subspecies Shonia tristigma subsp. tristigma has only been recorded from Hinchinbrook Island. In the NT the related species Shonia territorialis is recorded from Arnhem Land.