Some of the botanists in the Biology Dept. at Texas A&M have put
together a virtual field trip to a beautiful ranch in Uvalde Co. We'd
be happy to have you join us as we botanize the South Texas Plains and
the Sabinal River:

http://botany.cs.tamu.edu/FLORA/WINSTON/bwinston1.html

See and learn about some of the wonderful plants of the area.

cheers,
Monique Reed
TAMU