Dipsacus England english flower Great Britain natural nature ragwort Senecio summer Sussex teasel thistle wild compositae plant Senecio jacobaea yellow cloud flowers lake peaceful reflections ripples rural sky trees water woodland countryside green hill landscape meadow South Downs view village Annual plant Australia coast dune grass Great Ocean Road Herbaceous plant petal Plant community Purple Groundsel sand Senecio elegans Terrestrial plant black caterpillar cinnabar distasteful eat feed insect larva leaf Lepidoptera moth orange poisonous striped Tyria jacobaeae weed