Aristolochia clematitis
English: Birthwort.
French: Aristoloche.
Names: = Aristos = better, locheia = birth.
Region: South Europe, southeast Europe; naturalized in Britain.
Habitat: waste ground, gardens, orchards; fully hardy; prefers moist soil; semi-shade to full sun.
Content: clematine; serpentarin; aristolochic acid.
Use: medicinal.
Botany
Herb; climbing; perennial; to 0.7 m tall, 0.5 m wide.
Flower: hermaphrodite; flowers from July to September.
Pollination by flies.
Habitat: woodland; dappled shade; medium, loamy, heavy, clay, moist, well-drained soils; semi-shade or no shade.