Fingered Kelp (Laminaria digitata)
Many blades, extending like fingers on a hand
All kelps have a rootlike structure called a “holdfast” to serve as an anchor. Often tiny sea creatures dwell in among the holdfast. Why not take a look?
Perforated Kelp (Agarum cribrosum)
Central midrib Broad blade punctured with hundreds of holes
In Asia this kelp is farmed for food called agar. An extract of the plant, agar-agar, is used in the laboratory as a culture medium for bacteria and other disease-producing organisms.
The Green Algae
Sea Lettuce (Ulva species)