Duboisia myoporoides R.Br.

Tall shrub or tree to 24 m high; bark thick and corky towards base. Leaves sessile or with petiole to 3 cm long; lamina narrowly obovate to narrowly obovate-elliptic, occasionally narrowly elliptic, 4–15 cm long, 1–4 cm wide, slightly discolorous. Inflorescence broadly pyramidal; bracts 1–11 mm long; pedicels 2–7 mm long. Calyx 1–3 mm long, the lobes usually one-fifth to one-third as long as tube. Corolla 4–7 mm long; tube 2–4 mm diam. at apex; lobes broadly ovate to broadly ovate-elliptic, 1–3.5 mm long with truncate base and bluntly obtuse to rounded apex. Stamens 4 (when staminode absent or present), sometimes 5, the shorter pair or trio 1.5–2.4 mm long and the longer pair 2–3 mm long. Style 1–2 mm long, slightly shorter to longer than upper stamens. Berry usually globose, rarely ellipsoid to ovoid, 4.5–8 mm long, purple-black; fruiting pedicels 6–12 mm long. Seeds 1–12 per fruit, 2.3–3.1 mm long.

Mostly found in high rainfall areas from the coastal plain to the slopes of the Great Dividing Range, but at times at altitudes up to 950 m; grows in sand or loam, often at rainforest margins or in clearings, or in moist Eucalyptus forest; in drier areas it occurs in moist gullies.

Contains tropane alkaloids; leaves of this species but more commonly those of higher yielding artificial hybrids with Duboisia leichhardtii are harvested commercially as source of hyoscine for medicinal drugs. See also Floyd (2008: 417–418).

Can be grown by seedlings.