Plants weren't Sam's things. He knew how to keep his garden clean, he learned about native plants when on a mission, he even knew the names of the major plants, but he wouldn't be able to name plants spread across the continent unless once again were plants that could poison or cure you and located where he had missions. The Rain Forest was not exactly the hubbub of terrorist activities, so he wouldn't know names and descriptions would still take time.
"I have something better to start," he said with a smirk. "Hold on." He went to their car and took out the notebook. "I've been keeping records of what's poisonous, what's edible with visuals. You got the different leaves. Among all of us, we're been able to identify some plants. Coconuts, really like coconut and good for water. Also we don't know how much is evolution and how much is dimension, but flip through first and then you can ask me."