western aster, symphyotrichum ascendens growing in garden

alpinus amellus arboretum asia asian aster asteraceae asterfarreri asterinae bloom blossom blue botanic botanical botany china chinese disc erigeron farrer farrer27saster farreri flora floret flower flowerhead garden green hispidus lautureanus leaf may native natural nature orange petal plant purple saintgallen spring stgallen swiss switzerland tataricus tibet tibetan top tripolium wildflower