equisetales

English Thesaurus

1. lower tracheophytes in existence since the Devonian (noun.plant)

hypernym	:	plant order,
definition	:	the order of plants (noun.plant)

member holonym	:	equisetaceae, family equisetaceae, horsetail family,
definition	:	sole surviving family of the Equisetales: fern allies (noun.plant)

member meronym	:	class equisetatae, class sphenopsida, equisetatae, sphenopsida,
definition	:	horsetails and related forms (noun.plant)