Missouri Botanical Garden (Recommendation)

We visited the Missouri Botanical Garden in St. Louis this weekend with EJB, his mother, and his daughter. It was a nice change of pace from the excellent Chicago Botanic Garden, and even held up acceptably to EJB's mother's marvelous private garden that I just posted about.
A non-vegetal highlight was a beautiful hanging Chihuly in the visitor's center at the garden's entrance.
In the line of plants, I really liked the asparagus fern (Asparagus densiflorus 'Myersii')...
The Peruvian golden shrimp plant (Pachystachys lutea), which I'd never seen before...
The king's spear asphodel (Asphodeline lutea), which had neat little fruits that yield a yellow dye...
This dramatic Amazonian elephant's ear (Alocasia x amazonica)...
A wonderful dense stand of bamboo... I really need to get some bamboo for our yard, but it is so expensive!
There were also many wonderful stones in the Chinese garden. The most dramatic were the Taihu stones. I'm not sure if these limestones always come from Lake Taihu, or just get that name because of their prevalence in that area. Maybe one day we'll get one of our own -- after we've got a nice thicket of bamboo going, of course...
I'm not sure what kind of stone this aggregate is. Maybe CRB will chime in with an answer? It is natural, but does share a lot of characteristics with concrete.
There was a really nice bridge in the Chinese garden...
The bridge to an island in the Japanese garden was also very picturesque, but closed to the public.
The waters around these gardens were full of koi and other carp. These were some of the largest such fish I have seen anywhere, and must be very old.