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Noun1.Xyridales - an order of monocotyledonous herbs
plant order - the order of plants
Commelinidae, subclass Commelinidae - one of four subclasses or superorders of Monocotyledones; comprises about 19,000 species in 25 families of mostly terrestrial herbs especially of moist places including: Cyperaceae; Gramineae; Bromeliaceae; and Zingiberaceae
family Xyridaceae, Xyridaceae, yellow-eyed grass family - plants of tropical to temperate regions; usually in wet places
Commelinaceae, family Commelinaceae, spiderwort family - large widely distributed family of chiefly perennial herbs or climbers: spiderworts
Bromeliaceae, family Bromeliaceae, pineapple family - a family of tropical American plants of order Xyridales including several (as the pineapple) of economic importance
family Mayacaceae, Mayacaceae - a monocotyledonous family of bog plants of order Xyridales
family Rapateaceae, Rapateaceae - South American herbs somewhat resembling members of the Juncaceae
Eriocaulaceae, family Eriocaulaceae, pipewort family - chiefly tropical aquatic or bog herbs: pipeworts