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Aristolochia clusii Lojac.


Italian Birthwort


perennial herb < 0,8 m, tuberous, irregularly elongated taproot


3-5 cm, odour barely noticeable


Italy (mainland & Sicily), Malta


thick-shelled, compressed triangular, large elaiosome,

stratification 1-3 years

Aristolochia clusii is a very showy species but appears to be heavily neglected in cultivation. 

The flowers can reach a size of 5 cm or more which is quite large for a Southern mediterranean species. 


After years, the elongated underground stem turns into a massive storage organ of more than 1 m length and as thick as a human forearm if provided the space and sufficient nutrients.


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