Solanum species of eastern and northern Australia

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A. R. Bean

Solanum laxum

Habit. Perennial vine. Large stems prickles absent.

Branchlets. Branchlet prickles absent. Branchlet hairs simple or absent. Branchlet stellae absent. Branchlet simple hairs absent or antrorse, curved, not gland-tipped, 0.2–0.3 mm long. Branchlet Type 2 hairs absent.

Leaves. Leaves lanceolate or ovate, entire. Leaves 2–6 cm long, 0.7–3 cm wide. Leaf apex obtuse or acute, base cuneate or obtuse. Petioles 1–2 cm long, prickles absent. Axillary leaves 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 absent or antrorse, curved, very sparse or confined to major veins, not gland-tipped. Upper leaf surface Type 2 hairs absent.

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

Inflorescence. Inflorescence terminal, branched (paniculate to corymbose). Inflorescence common peduncle 15–35 mm long. Inflorescence rachis prickles absent. Inflorescence 10–30-flowered, with all flowers bisexual. Flowers 5-merous. Pedicels at anthesis 10–15 mm long, prickles absent. Calyx tube at anthesis 2–3 mm long. Calyx lobes at anthesis hemispherical or deltate, 1–1.5 mm long. Calyx prickles at anthesis absent. Calyx stellae absent. Calyx simple hairs absent, Type 2 hairs absent. Corolla white, 9–15 mm long, shallowly lobed, inner surface with simple hairs. Anthers 2–4 mm long. Ovary glabrous. Functional style 5 mm long.

Fruits. Fruiting calyx prickles absent. Mature fruits 10–30 per inflorescence, globular, 6–9 mm diameter, black or purple, shiny. Pedicels at fruiting stage 15 mm long. Seeds white or pale yellow, 2–3 mm long.

Distribution and habitat. New South Wales, Victoria. NSW: North Coast, Central Coast, South Coast.

Miscellaneous. Naturalised. Subg. Potatoe. Common name: Jasmine Nightshade. Data source: Fl of Vic, Symon 1981, Fl of NZ.

Illustrations. • flowering plant. • leaves. • flowers.


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

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