Assertion: kelp's holdfast | /r/HasProperty | stipe
Facets:
Source sentences:
text: They typically feature a large, rootlike holdfast for attachment to the ocean floor, a stipe (primary stem) for the internal transport of organic material, and long branching stalks with blades that stay afloat by means of pneumatocysts (gas bladders).
text: Laminaria expresses a haplo-diplophasic life history, in which it alternates from a macroscopic thallic sporophyte structure, consisting of the holdfast, a stipe, and the blades, to a filamentous, microscopic gametophyte.