eq·ui·tant 
(ĕkwĭ-tənt)
(ĕkwĭ-tənt)adj.
Overlapping at the base to form a flat, fanlike arrangement in two ranks, as the leaves of some irises.
[Latin equitāns, equitant-, present participle of equitāre, to ride horseback, from eques, equit-, horseman, from equus, horse; see ekwo- in the Appendix of Indo-European roots.]