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smooth horsetail

Equisetum laevigatum

Member of horsetails (genus Equisetum)
horsetail family (family Equisetaceae)
horsetails (order Equisetales)
horsetails (subclass Equisetidae)
ferns (class Polypodiopsida)


Toxicity of foxtail, horse willow, horsetail, mexican horsetail, rush (Equisetum spp.):
4 – Ingestion of these plants, especially in large amounts, is expected to cause serious effects to the heart, liver, kidneys or brain. If ingested in any amount, call the poison center immediately.


Chris’s observations: none

Taxon info: iNaturalistCalfloraCalPhotosJepson eFloraFNA

Bay Area species: iNaturalistCalflora