Holdfast — Free Oceanography Illustration | GPAI | GPAI

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Holdfast — Free Oceanography Illustration | GPAI | GPAI

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Holdfast

Holdfast

Oceanography

Holdfast

A dense rootlike anchoring structure at the base of seaweed, formed by many thick branching brown haptera that create a tangled claw-shaped cluster gripping tightly to rock or other hard surfaces. It appears with multiple branching arms rather than true plant roots, and is dark brown in color.

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