The flora of Nekenalos is visually similar to the flora you would find on Earth during the present day. Grasses and flowering plants are present (though 65 million years of divergent evolution inspire stark differences in their specific appearances).
The primary difference to consider while playing is that due to the planet's lack of axial tilt (before its celestial move - although it also only has a small one now), it has no deciduous plants.
Feel free to come up with plants and their fruits, flowers, thorniness and potential toxins as you play! We'll expand this page with player-supplied flora as we go.