cycadophyte
noun
cy·cad·o·phyte sī-ˈka-də-ˌfīt 
: any of a division (Cycadophyta) of usually unbranched mostly extinct gymnosperms with pinnate leaves, large pith, little xylem, and a thick cortex that includes the cycads, seed ferns, and in some classifications the cycadeoids
Word History
Etymology
ultimately from New Latin Cycad-, Cycas + Greek phyton plant — more at -phyte
First Known Use
1911, in the meaning defined above