This is a Victoria amazonica time-lapse video.
Why have the Leiden leaves shrunk?
Research showed that there was too much iron in the water. People throw coins in the water to help the hothouses financially. Euro coins, which replaced earlier Dutch coins, of 5, 2 and 1 cents have copper and steel. In water, these coins rust.
Nymphaea thermarum is the world’s smallest water lily. It nearly became extinct. Now, some are in the botanical garden in Leiden, the Netherlands.
- Wordless Wednesday 13-09 (curiosakat.com)
- Hint With Genus, Nymphaea (mbracedefreak.wordpress.com)
- Careless hikers’ bonfire damages rare water lily pond in Tel Aviv (haaretz.com)
- Leuven in Belgium, botany, birds and bees (dearkitty1.wordpress.com)