UCSC has a wealth of resources for learning about plants.

FERP-based resources

Woody-species pages
Synoptic key to UCSC plant identification  (currently under revision)
Forest phenology (under revision)

UCSC Centers

UCSC Arboretum
UCSC Greenhouse
Kenneth S. Norris Center for Natural History
Center for Agroecology & Sustainable Food Systems

UCSC students can focus on plants through several majors

Plant Sciences
Environmental Studies
Ecology and Evolution
Agroecology and Sustainable Food Systems Concentration

Internship opportunities

ENVS Internship Program