131837 BLADDERSEED Physospermum cornubiense (Height to 1m) is a hairless perennial with striped, solid stems. Umbels are 2-5cm across with whitish flowers (Jun-Jul). The fruits are inflated and resembled small bladders. This rare plant occurs in Cornwall (it is the only British flower with a reference to Cornwall in its scientific name) and also in Buckinghamshire.
