Texas Vascular Plant Checklist:  Styracaceae
The Snowball Family
(Magnoliophyta, Magnoliopsida, Dilleniidae)

 Halesia
   diptera Ellis (twowing silverbell, snow-drop tree)
   tetraptera var. tetraptera

 Styrax
   americanus Lam. (american s, mockorange)
   grandifolius Ait. (big leaf snowbell)
   platanifolius subsp. platanifolius (sycamoreleaf s.)
   platanifolius subsp. stellatus (Cory) P.W. Fritsch
   platanifolius subsp. texanus (Cory) P.W. Fritsch
   platanifolius subsp. youngiae (Cory) P.W. Fritsch