Solanum species of eastern and northern Australia


A. R. Bean

Solanum nigrum ssp. nigrum

Habit. Erect, annual or non-rhizomatous perennial shrub, 0.1–1 m high. Large stems prickles absent.

Branchlets. Branchlets ridged. Branchlet prickles absent. Branchlet hairs Type 2 or simple. Branchlet stellae absent. Branchlet simple hairs antrorse, curved, not gland-tipped. Branchlet Type 2 hairs absent.

Leaves. Leaves elliptical or ovate, entire or shallowly lobed throughout. Leaf lobes obtuse. Leaves 1.5–13 cm long, 0.8–7 cm wide. Leaf base cuneate. Petioles 0.5–3 cm long, prickles absent.

Upper leaf surface. Upper leaf surface green. Upper leaf surface prickles absent. Upper leaf surface stellate hairs absent, protostellae absent, hair density absent from surface. Upper leaf surface simple hairs antrorse, curved, very sparse or confined to major veins or sparse, not gland-tipped. Upper leaf surface Type 2 hairs absent or present throughout.

Lower leaf surface. Lower leaf surface green. Lower leaf surface prickles absent. Lower leaf surface stellate hair density absent. Lower leaf surface simple hairs antrorse, curved, very sparse or confined to major veins or sparse, not gland-tipped. Lower leaf surface Type 2 hairs absent or present only on veins.

Inflorescence. Inflorescence supra-axillary, almost umbellate but 1–2 fls/frt separate. Inflorescence common peduncle 10–20 mm long. Inflorescence rachis prickles absent. Inflorescence 5–12-flowered, with all flowers bisexual. Flowers 5-merous. Pedicels at anthesis 4–8 mm long, prickles absent. Calyx tube at anthesis 1.5–2 mm long. Calyx lobes at anthesis hemispherical or deltate, 0.3–1 mm long. Calyx prickles at anthesis absent. Calyx stellae absent. Calyx simple hairs present. Corolla white, 4–6 mm long, deeply lobed. Anthers 1.7–2.8 mm long. Functional style 3.5–4 mm long, protruding between anthers, with simple hairs.

Fruits. Fruiting calyx lobes less than half length of mature fruit, prickles absent. Mature fruits 4–8 per inflorescence, globular, 6–9.5 mm diameter, black, dull. Pedicels at fruiting stage 10–15 mm long. Seeds 1.7–2.4 mm long.

Distribution and habitat. Queensland, New South Wales, Victoria, Tasmania, Western Australia. Qld: Moreton, Darling Downs, Wide Bay, Burnett, Maranoa, Cook, Leichhardt, Warrego, Port Curtis, Mitchell, Gregory South, Gregory North, Kennedy South, Kennedy North, Burke. NSW: North Coast, Central Coast, South Coast, Northern Tablelands, Central Tablelands, Southern Tablelands, North-west Slopes, Central-west Slopes, South-west Slopes, North Western Plains, South Western Plains, North Far Western Plains, South Far Western Plains.

Miscellaneous. Naturalised. Sect. Solanum. Common name: Blackberry Nightshade. Data source: Fl of SEQ, Fl of NZ.

Illustrations. • mature fruits. • flowers and immature fruits.

Cite this publication as: ‘Bean, A.R. 2012 onwards. Solanum species of eastern and northern Australia. Version: 29th June 2013.’.