`farrer`s aster` flower - aster farreri

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