What flowers only bloom at night?

I'm getting my first tattoo in a few months and i want it to have a flower as part of it. But i want a flower with deep meaning and i want it to only bloom at night. Any suggestions?What flowers only bloom at night?
Per this website, here's a few:





http://www.greendaily.com/2008/03/11/gar鈥?/a>





Casablanca Lily. Perennial. Blooms at night. Very fragrant. Grows 2 to 6 feet in height.





Climbing hydrangea. Blooms at night. New leaves turn from pink to gold to dark green. Large white flowers. Vine grows to 30 feet.





Evening Primrose. Biennial. Blooms at night.





Four O'Clocks. Perennial. Blooms in late afternoon and at night.





Gardenia. Evergreen shrub. Blooms at night.





Night Blooming Jasmine. Perennial. Grows 8 to 10 feet.





Mock Orange. Shrub. Fragrant orange scent with white flowers. Grows to 10 feet.





Moonflower. Vine. Blooms at night. Related to the Morning Glory.





Nicotiana or Flowering Tobacco. Nicotiana is a hardy plant that will take over the yard if you allow it. Growing to a height of 3 to 5 feet, it produces white flowers.





Night Gladiolus. Bulb. Yellow flowers blooms with a spicy frangrance. Blooms at night.What flowers only bloom at night?
Try a night blooming cereus. The plant has interesting leaves and from bloom to flower they are amazing to watch.





Here's a site with an assortment of pics.





http://davesgarden.com/guides/pf/showima鈥?/a>





EDIT: They really don't have leaves, it's like interesting shaped stalks or stems that the blooms form on.
moon flower





http://www.moonlightsys.com/themoon/flow鈥?/a>
Night Blooming Cereus - huge starburst blossoms.
There's moon flowers that bloom at night and morning glories that bloom in early early morning.
lady of the night..is a very sweet smelling flower and only opens at night...





google ...ladies of the night flowers,and see...
Moonflower is a good one, I'll thrown in the Dragon Fruit bloom.


http://www.flickr.com/photos/27457302@N0鈥?/a>
My neighbor has Moon flowers. They blooms evening and are gone in the morning