stopbank gravel; only one plant seen amongst abundant other Senecio species
stopbank gravel; very dense colonies
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...