Yes, they are plants, all of which are autotrophs.
horsetails belong to the Equisetopsida division.
autotroph
kingdom archaebacteria is both heterotroph and autotroph
I'm not sure about horsetails, but ferns don't have flowers or seeds.
autotroph
The Year of the Horsetails was created in 1967.
horsetails belong to the Equisetopsida division.
A potato is an autotroph.
Autotroph
autotroph
Autotroph
autotroph
Autotroph
autotroph
autotroph
Autotroph
there autotroph