Hi Arnold ,Paul, I agree that your Arum palaestinum is considerably paler than any I have seen. On the subject of odour Boyce says " A palaestinum typically produces a smell similar to fermenting fruit, which is actually quite pleasant. On the other hand A dioscoridis smalls strongly of donkey-dung." He then goes on to report that some populations are scentless and others have been reported smelling weakly of dung and carrion !!! I thought that might help you sniff out an identity. Cheers, Rob in Tasmania