Oarweed, also known as 'Tangle', has a long, smooth, flexible stem that supports a broad flat leaf blade. This is often split into narrow strips which is how it gets its name - digitata means fingers. This weed is submerged nearly all the time, and can only be seen at low water on spring tides. It is attached to bedrock and boulders by a strong holdfast.
(Photo: Paul Tyler)
Oarweed only shows above water at very low tide
Oarweed (Photo: Paul Tyler)
The smooth stalk of this plant distinguishes it from forest kelp. The growing point of the leaf is found at the tip of the stalk - as the leaf wears away it is constantly replaced by new growth.
by Paul Tyler