Plants of South Eastern New South Wales
Fallopia convolvulus
Black Bindweed
Polygonaceae
Weed of pastures, crops and gardens. Sydney area. Elsewhere widespread but not common. Doubtfully naturalised in the ACT.
Introduced annual or short-lived perennial herb, twining or sprawling. Stems to about 1 m long, hairless, hairy with minute hairs, or slightly mealy. Leaves alternating up the stems, 1.5–7 cm long, 10–40 mm wide, bases with rounded to backward pointed lobes, margins entire, or wavy and scalloped. Flowers green, green with narrow white margins, or greenish white, with 5 'petals', each 2–6 mm long, free from each other above about midway. Flowers in elongated, sometimes branched, clusters, spread along the stems, or reduced to clusters at the bases of the leaves. Flowers Nov.–Mar. Nuts triangular in cross section, dull, black, surfaces finely granular, with shallowly concave to flat faces, 3.5–4.5 mm long.
PlantNET description: http://plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl.pl?page=nswfl&lvl=sp&name=Fallopia~convolvulus (accessed 22 January, 2021)
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