Grown from seed in the nursery.
Taxon: Aristolochia clematitis
2011-08-25 Vienna, district XXII. - Donaustadt, Lobau (155 msm Quadrant 7864/2)
German name: Echt-Osterluzei
ID source: Fischer & al., Exkursionsflora für Österreich, Liechtenstein und Südtirol (2008, 3rd edition)
Habitat: Dry shrublands on Danube rubble terrace, National Park Donau-Auen; here flowering only a good month after a bushfire - usually this species is flowering in spring but after the fire of july 2011 it sprouted and flowered again.
Occurrence: quite common in its habitat - in Austria only in warmer regions like here
Aristolochia is a large plant genus with over 500 species that is the namesake (type genus) of the family (Aristolochiaceae). Its members are commonly known as birthworts, pipevines or Dutchman's pipes and are widespread and occur in the most diverse climates. Some species, like A. utriformis and A. westlandii, are threatened with extinction.