Zach - I am more into edible gardening. I have some celeste fig cuttings, some raspberry plants, and some moonflower seeds.

I hate to appear dumb, but some common names would help a few of us less-learned gardeners...Just a suggestion.
LtlWilli

The first two are endemic to madagascar, not sure where you can get those.

The third is commonly known as Darwin's orchid/Christmas Orchid/Star of Bethlehem Orchid (also from madagascar)

Cinnamon

Thorn of the Cross/Crown of Thorns (from south america)

Crassula (succulent from south africa and madagascar)

Dorstenia is from the area of ethiopia

Eastern Cape Blue Cycad ( think that is how it is spelled) is from south africa

Hoyas are from asian tropics and ants love them

Kalanchoes is a succulent and of the 100 some genuses, only one is from the americas

Tree Spinach

Pachypodium is a succulent from namibia

Stag Horn Fern - from australia

Double Claw or Red Devil's Claw - native to southwest USA and northern mexico

Puya chilensis - evergreen from Chile

Voodoo Lily from asian and african tropics, smells foul while flowering

Porcupine tomato from madagascar

Cacao or Cocoa Tree from central and south america

Hope that helps, I got bored and let google be my friend!