equisetoid

[ ek-wuh-see-toid ]
/ ˌɛk wəˈsi tɔɪd /

noun

any plant of the phylum or division Equisetophyta (or Sphenopsida), including the horsetails and many extinct species of the Carboniferous Period.
Also called sphenopsid.

Origin of equisetoid

< New Latin Equiset(um) equisetum + -oid