A Senecio and a diploid, Senecio vernalis is part of a species group along with S. flavus, S. gallicus, S. squalidus and S. glaucus who are widespread geographically and interesting for the study of genecology (the study of genetic differences in relation to the environment) and plant evolution.
Senecio | Senecio vulgaris | Vernalis, California | Senecio sylvaticus | Senecio integerrimus | Vernalis plc | Senecio squalidus | Professor Pelser and a leaf of ''Senecio fistulosus |