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Aristolochia castellana (Nardi) Costa


Castilian Birthwort


perennial herb < 0,4 m, globose tuber


2-4 cm, odour barely noticeable


Central Spain


thick-shelled, compressed triangular, large elaiosome,

stratification 1-3 years

 A small flowered variant of Aristolochia pallida had been overlooked for years until investigation revealed there's another species belonging to the extremely variable pallida-complex in 2008. 


Originating from the central mountains in Spain this tiny species can mainly be distinguished from the 'classic' A. pallida by the distribution area. 

Although not as large-flowered as other species from the same clade A. castellana produces amazing, erect zic-zac shoots with flower buds in every leaf axil.


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