Rose Glossary
  
       
  AARS: All American Rose Selection  
     
  Blade: the broad part of a leaf  
     
  Bract: a modified or reduced leaf that occurs beneath and next to a peduncle  
     
  Bud union: the swollen part of the stem where the scion of a grafted rose meets the understock  
     
  Calyx: the protective cover of a rose flower, composed o the sepals  
   
  Cane: one of the main stems of a rose plant  
   
  Corolla: the petals of a rose flower considered as a single unit  
       
  Cultivar: a named rose variety exhibiting distinct and consistent features, indicated by single quotation marks  
     
  Hip: the fruit of a rose Inflorescence: the flowering part of a plant; a rose inflorescence may bear single or multiple flowers  
     
  Leaflet: the individual segment of a compound rose leaf  
       
  Node: the point on a stem from which leaves and buds emerge  
       
  Old rose: strictly speaking, a rose introduced before 1867, but more loosely used to describe any rose grown or introduced before 1900 Once-blooming: a rose that flowers only once in early summer and does not repeat  
       
  Own root: a rose propagated as a cutting rather than by grafting  
       
  Peduncle: a stalk that supports a single flower or flower cluster Petal: the showy, usually colored part of a flower  
       
  Petiole: the stalk by which a leaf attaches to a stem; also leafstalk  
       
  Pistil: the female reproductive organ of a flower, consisting of an ovary, style, and stigma  
       
  Prickle: the technical term for a rose thorn  
       
  Rootstock: the root portion of a plant onto which the scion is grafted; also understock  
       
  Scion: a shoot grafted onto a rootstock; the "top" of a grafted rose  
       
  Sepal: one of the five individual, leaflike divisions of the calyx  
       
  Sport: a spontaneous genetic mutation, often resulting in a plant that bears flowers of a different color or with more or fewer petals than the original plant  
       
  Stamen: the male reproductive organ of a flower, consisting of a filament and anther  
       
  Stipule: a small, leaflike appendage that occurs at the base of the petiole  
       
  Sucker: a stem, usually unwanted, that originates from a rootstock