order Gentianales


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Noun1.order Gentianales - an order of dicotyledonous plants having gamopetalous flowers; Gentianaceae; Apocynaceae; Asclepiadaceae; Loganiaceae; Oleaceae; Salvadoraceae
plant order - the order of plants
class Dicotyledonae, class Dicotyledones, class Magnoliopsida, Dicotyledonae, Dicotyledones, Magnoliopsida - comprising seed plants that produce an embryo with paired cotyledons and net-veined leaves; divided into six (not always well distinguished) subclasses (or superorders): Magnoliidae and Hamamelidae (considered primitive); Caryophyllidae (an early and distinctive offshoot); and three more or less advanced groups: Dilleniidae; Rosidae; Asteridae
Apocynaceae, dogbane family, family Apocynaceae - chiefly tropical trees or shrubs or herbs having milky juice and often showy flowers; many are sources of drugs
family Gentianaceae, gentian family, Gentianaceae - chiefly herbaceous plants with showy flowers; some are cultivated as ornamentals
family Salvadoraceae, Salvadora family, Salvadoraceae - a family of Old World shrubs and trees of order Gentianales; related to Oleaceae but having four stamens and four petals
family Oleaceae, Oleaceae, olive family - trees and shrubs having berries or drupes or capsules as fruits; sometimes placed in the order Oleales: olive; ash; jasmine; privet; lilac
buckbean family, family Menyanthaceae, Menyanthaceae - a dicotyledonous family of marsh plants of order Gentianales
family Loganiaceae, Loganiaceae - a dicotyledonous family of plants of order Gentianales
Asclepiadaceae, family Asclepiadaceae, milkweed family - widely distributed family of herbs and shrubs of the order Gentianales; most with milky juice
References in periodicals archive ?
Only families with 50% to 100% consensus for inclusion are considered here to constitute the order Gentianales. It is hoped that this classificatory model of the Gentianales will be helpful to those teaching systematics at colleges and universities.
Lastly, a computational analysis by Young and Watson (1970) highlights the taxonomic soundness of the order Gentianales. Their analysis, however, included only the families Apocynaceae, Asclepiadaceae, Gentianaceae, Periplocaceae, and Rubiaceae.
Amongst other characters, its alternate leaves, collateral vascular bundles, valvate aestivation, embryology, and chemistry make it not only anomalous in the family Gentianaceae but also in the order Gentianales. For further comments see the discussion under these two families.