Rose understock--Fredica variety

Abstract

The invention relates to a new and distinct variety of rose plant which is particularly suited for use as an understock when growing rose plants in a greenhouse. The new variety is substantially thornless in nature, and is a product formed by the crossing of a Rosa indica major seed parent by a thornless male, Rosa multiflora inermis.

I claim: 
     
       1. A new and distinct variety of rose plant produced by the crossing of a Rosa indica major seed parent by the thornless male, Rosa multiflora inermis, characterized particularly as to novelty by the unique combination of (a) a substantially thornless nature, (b) a multiflorous inflorescence, (c) white flowers commonly of five petals each, (d) foliage similar to but more ample than that of Rosa indica major, (e) good tolerance to diseases including powdery mildew, and (f) exceptional suitability for use as understock for growing rose plants in a greenhouse.