With stem galls, leaf mines, and a spittle bug.
With aphids, leaf mines, and stem galls, all entered as separate observations.
Groundsel is thick along the side of the partially shaded ditch. The ditch is intermittently sprayed off with herbicide and fast growing annuals like groundsel and the nettle Urtica urens spring back.
(I looked at 100 plants and found no Nyctemera larvae.
This plant had been weeded out by the community volunteers that were weeding this area where they'd planted native trees. It's a tough life being an "ugly" native herbaceous plant in an urban area.
Senecio /sɨˈniːʃi.oʊ/ is a genus of the daisy family (Asteraceae) that includes ragworts and groundsels. The flower heads are normally rayed, completely yellow, and the heads are borne in branched clusters. Senecio is one of the largest genera of flowering plants, and despite the separation of many species into other genera it still contains c. 1250 species of varied form, including leaf, stem and tuber succulents, annuals, perennials, aquatics, climbers, shrubs and small trees. Some species produce...