Taxodium distichum

There is a great shot of bald cypress knees (Taxodium distichum) over at UBC Botany photo of the Day: http://www.ubcbotanicalgarden.org/potd/2006/01/taxodium_distichum.php. This is one of my favourite trees, together with its allies Taxodium ascendens nutans and Metasequoia glyptostroboides although it rarely forms these spectacular root formations here in .the UK