Solanum opacum A.Braun & Bouché

Dark Nightshade

Index Sem. Hort. Berol. App. 8: 18, no. 39 (1853) APNI

Taxonomic status:Accepted

Occurrence status:Present

Establishment means:Native

Sprawling or almost prostrate annual herb to 1 m across, green, pubescent with small glandular and simple hairs; prickles absent. Leaves ovate-lanceolate, mostly 3–7 cm long, 1–4 cm wide, apex acute or acuminate, base cuneate to attenuate, margins usually shallowly lobed, concolorous, both surfaces sparsely pubescent to glabrescent; petiole 1–4 cm long. Inflorescences simple, 2–5-flowered; peduncle 1.5–2 cm long, deflexed from base in fruit. Flowers on pedicels 7–10 mm long; calyx 2–3 mm long, lobes rounded to broad-triangular, 0.5–1 mm long, slightly enlarged in fruit; corolla stellate, 8–12 mm diam., white, lobes ovate to oblong; anthers 1.5–2 mm long. Berry globose, 8–10 mm diam., green; seeds 1.8–2.2 mm long, fawn and green; stone-cell granules c. 0.8 mm diam. Flowers mostly spring and summer.

EGL, EGU, GipP, HNF, HSF, LoM, MuM, MSB, OtP, OtR, RobP, Strz, VVP, Wim. Also SA, Qld, NSW, Tas. New Guinea. Found in more mesic habitats (e.g. wetter tall open forest) mostly in eastern Victoria with a few scattered collections from the west and north-west.

Source: Jeanes, J.A. (1999). Solanaceae. In: Walsh, N.G.; Entwisle, T.J. (eds), Flora of Victoria Vol. 4, Cornaceae to Asteraceae. Inkata Press, Melbourne.
Updated by: Val Stajsic, 2018-06-18
Hero image
Distribution map
life Life
kingdom Plantae
phylum Tracheophyta
superorder Asteranae
order Solanales
family Solanaceae
genus Solanum
Higher taxa


Source: AVH (2014). Australia's Virtual Herbarium, Council of Heads of Australasian Herbaria, <>. Find Solanum opacum in AVH ; Victorian Biodiversity Atlas, © The State of Victoria, Department of Environment and Primary Industries (published Dec. 2014) Find Solanum opacum in Victorian Biodiversity Atlas
  Bioregion Occurrence status Establishment means
Lowan Mallee present native
Murray Mallee present native
Wimmera present native
Victorian Volcanic Plain present native
Murray Scroll Belt present native
Robinvale Plains present native
Gippsland Plain present native
Otway Plain present native
East Gippsland Lowlands present native
East Gippsland Uplands present native
Highlands-Southern Fall present native
Highlands-Northern Fall present native
Otway Ranges present native
Strzelecki Ranges present native

State distribution

Distribution map
Western Australia
South Australia
New South Wales
Australian Capital Territory