While the laminated portion of the thallus is being gradually worn off in our latitudes during the autumnal storms, a vigorous new growth appears at the junction of the stipe and the blade, as the result of which a new piece is added to the stipe and the lamina entirely renovated.
In Laminariaceae there is a distinction of stipe and blade.
This is the case in the Fucaceae, and in a very marked degree in the Laminariaceae in question, where the assimilative frond is borne at the end of an extremely long supporting and conducting stipe.
It has almost no stipe, producing pinnae from very close to the ground.
The frond is held on a very long stipe giving the plant quite an open airy appearance.