Solanum Species of Eastern Australia

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A. R. Bean

Solanum nigrum ssp. nigrum

Habit and juveniles. Erect. Annual, or non-rhizomatous perennial shrub. 0.1–1 m high. Juvenile stage unknown.

Branchlets. Adult stems prickles absent. Adult branchlets ridged. Adult branchlets prickles absent. Adult branchlets hairs Type 2, or simple. Adult branchlets stellae absent. Adult branchlets simple hairs antrorse, curved; not gland-tipped. Adult branchlets Type 2 hairs sparse.

Leaves. Adult leaves elliptical, or ovate; entire, or shallowly lobed throughout; lobes obtuse; lamina 1.5–13 cm long; lamina 0.8–7 cm wide; base cuneate or attenuate. Adult leaves petioles 0.5–3 cm long; prickles absent.

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

Lower leaf surface. Lower leaf surface green; prickles absent. Lower leaf surface stellate hair density absent. Lower leaf surface simple hairs antrorse, curved; sparse; not gland-tipped. Lower leaf surface Type 2 hairs present throughout.

Inflorescence. Inflorescence supra-axillary; almost umbellate but 1–2 fls/frt separate; common peduncle 10–20 mm long; rachis prickles absent; 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; erect; 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. Stone-cell granules absent.

Distribution and habitat. Queensland, New South Wales, Victoria, Tasmania. Moreton, Darling Downs, Wide Bay, Burnett, Maranoa, Cook, Leichhardt, Warrego, Port Curtis, Mitchell, South Kennedy, North Kennedy, Burke. All.

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


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Cite this publication as: ‘Bean, A.R. 2005 onwards. Solanum species of Eastern Australia. Version: 8th October 2006. http://delta-intkey.com’.

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