Common Wireweed
Sida acuta
This is a much branched shrubby plant growing to a height of a feet or a little more. Its leaves are simple lanceolate, and can vary in size. Some plants have leaves that are quite small, while others grow leaves that can be quite long. The leaves are prominently toothed and have an acute base (hence acuta) with stipules being present. The flowers grow from leaf axils, are yellow in colour, solitary or occasionally in pairs. The flowers are buttercup like in shape, with overlapping petals.
Morning Mallow, Common Fanpetals