原生植物
Norco is rich in native plant species partly because of its diversity of habitats. The most prevalent plant communities are sage scrub, chaparral shrubland, and riparian woodland. Native plants include: the California poppy, matilija poppy, toyon, Ceanothus, Chamise, Coast Live Oak, sycamore, willow and Giant Wildrye. ("Erythrina caffra") ("Strelitzia reginae"). Mexican Fan Palms, Canary Island Palms, Queen Palms, Date Palms, and California Fan Palms are common in the Norco area, although only the last is native.