Tanacetum CC6343 A Chadwell collection from Himalchal Pradesh, with rather little information provided about its possible identity or its origin. Even the genus Tanacetum is not completely sure, as this is one that the botanists have had a go at, splitting it into several parts. But the plants look worthy of cultivation even before they flower, with elegant, finely divided, aromatic foliage of a really excellent pale silver colour.