TILERO crataegus monogyna It is given this name because its flowers (hawthorn tila) are attributed sedative properties with which an infusion or tisane is prepared to relax. Hawthorn and variants refers to the numerous and lacerating spikes or thorns (Latin spina) of its branches. The generic Crataegus comes from the Latin crataegus acerolo, shrub of this genus, of Greek origin krátaigos, perhaps derived from kratós force, vigor by the hardness of its wood; the specific monogyna, of monkey one and gynos pistil with a seed. Shrub of the family of rosaceas with spiny branches. Small, white and fragrant flowers used for infusion and fruit in red berries.