Algae · Brown algae · Marine Life

Different-leafed sargassum (Sargassum incisifolium)

Specimen of sargassum found in a rock crevice. Cape Agulhas, Western Cape (2020) – iNaturalist

Bushy yellow-brown plants with a triangular stem, small air-floats and two types of blades, attached to the substrate by a large conical holdfast that bears one or several strong perennial stems. The lower ‘leaves’ are oval and marginally toothed, while the upper fronds are small and spear-shaped, with smooth margins. Patterns of darker brown color visible on most of the blades. Fertile branches form inconspicuous small cylindrical tufts.

Up to 50-60 cm high.

Common in deep gulleys and pools. Thrives in high-tide pools warmed by the sun.

Two Oceans: a guide to the marine life of Southern Africa (2016); Seaweeds of the South African South Coast [Sargassum incisifolium].
Duckfoot’s limpet in a rock pool, surrounded by Sargassum incisifolium. Cape Agulhas, Western Cape (2020) – iNaturalist

Leave a comment