The Autumn Crocus, also known as Meadow Saffron, is one of the most poisonous plants in the Donau-Auen National Park. Its large pale lilac flowers, which resemble those of the crocus at first glance, are a characteristic autumn sight of wetlands meadows. In fact, another common name for Colchicum autumnale is "Naked Lady" and has to do with the late blooming of the flower: where the autumn ground is bare and barren, this species flowers conspicuously and colourfully and all alone, when and where it is least expected. The fruit of the Autumn Crocus over-winters under ground and appears only in the spring along with the leaves of the plant.