If you might be interested in a botany internship, then check out the Botanical Society of America jobs website.
http://jobs.botany.org/index.php?module=clip&type=user&func=display&tid=3&pid=143&title=5%20month%20paid%20Botany%20Internship%20%E2%80%93%20Twin%20Falls%20and%20%20Shoshone%2c%20Idaho