Editing Fallopia convolvulus (section)

==Description==
Black-bindweed is a [[herbaceous]] [[vine]] growing to {{convert|1|–|1.5|m|in|abbr=on}} long, with stems that twine [[clockwise]] round other plant stems. The alternate triangular [[leaf|leaves]] are 1.5–6&nbsp;cm long and 0.7–3&nbsp;cm broad with a 6–15 (–50) mm petiole; the basal lobes of the leaves are pointed at the petiole. The [[flower]]s are small, and greenish-pink to greenish white, clustered on short [[raceme]]s. These clusters give way to small triangular [[achene]]s, with one [[seed]] in each achene.<ref name=europe/><ref name=china/><ref name=pakistan/><ref name=arable>Phil Wilson & Miles King, ''Arable Plants – a field guide'': [http://www.fieldguide.co.uk/?PP=species_account&SPID=3&SHC=4&PSD=2 Black-bindweed]</ref> The flowers have 5 [[sepals]], the 3 outer ones are larger and show a keel. It has 5 stamens and the fruit grows to 4&nbsp;mm long.<ref>Parnell, J. and Curtis, T. 2012. ''Webb's An Irish Flora.'' Cork University Press. {{ISBN|978-185918-4783}}</ref>

While it superficially resemble bindweeds in the genus ''[[Convolvulus]]'' there are many notable differences; it has ocrea (stipule-sheath at nodes), which ''Convolvulus'' does not; and ''Convolvulus'' has conspicuous trumpet-shaped flowers while Black-bindweed has flowers that are unobtrusive and only about 4&nbsp;mm long.<ref name=Blamey/>