Example
Postelsia sp.-the sea palm.
- Prefers high-energy environments, dominated by crashing waves. The wave action actually ensures a steady supply of nutrients.
- Beds of this species can be some of the most productive ecosystems on Earth, exceeding even the tropical rainforests.
- This species cannot grow in the shade, but is dessication tolerant
Laminaria sp.
- Sublittoral species-Lives below the low-water line, not dessication resistant, but in 5-10% of normal sunlight.