Tenerife and the other Canary Islands have, like many Oceanic islands, a very diverse flora that is rich in endemic species. There is much to see for the plant enthusiast on Tenerife, even in winter. Here is a selection of pics from a trip I made in late December 2007 - early January 2008, all pics are found in my Tenerife gallery at
http://keesjan.smugmug.com/Botanical-trips/Europe/Tenerife/ .
The first 3 pics are Pancratium canariense
Barlia metlesicsiana (endemic to Tenerife) seems to be a very rare species.
The laurel forests have a number of highly interesting plant species that thrive in the humid, mild conditions that are typical of the laurel forest zone. Here are two subtropical species representing families that are much better known from alpine environments: Canarina canariensis (Campanulaceae) and Ixanthus viscosus (Gentianaceae)