Fuirena breviseta aka Saltmarsh Umbrella Sedge
Taxonomy
Common names
Saltmarsh Umbrella SedgeHow to care for Saltmarsh Umbrella Sedge
Toxicity
Ploi's records do not contain confirmed information on the toxicity of this particular plant. In the event of accidental ingestion of plant material with questionable toxicity by you, a family member, or a pet, it is always a good idea to consult a healthcare professional.
More info:
Wikipedia