Canes - Canes are the
main branches of the rose bush,emerging from the root mass in the case of an ‘own root’bushand emerging from the bud union on a grafted rose.
Shank - The main stem of the rootstock rose. The ‘preferred’roses has been grafted
onto the top of the shank.
Bud Union –the area between the roots and the stems where the bud of the desired variety was grafted onto the rootstock. Roots –There are two types of roots.
- The ‘anchor’roots are thick and strong,they hold the rose bush upright while it is growing. They also store nutrients during the winter season.
- The ‘hair roots’are the feeder roots. Their main job is to absorb the nutrients in the soil as they become available.
Basal Breaks - Basal breaks are new canes sprouting from the bud union (the graft) on a grafted rose. These new canes are the way the rose renews itself. Sometimes mistaken for the ‘sucker’cane which does not emerge from the bud union.
Leaf - The leaves of roses are pinnately compound –that means they are made up of leaflets arranged alongthe side of a common axis with one leaflet on the end. The example is of a five-leaflet leaf. Roses also have 3-leaflet leaves and many have 7-leaflets or more.
Petiole - The tiny stem holding all the leaflets.
Petiolul - a subdivision of the petiole that connects a leaflet to the petiole.
Stipule - The tissue at the point of attachment of petiole to stem. Often long and exaggerated.
Auricle - the ‘ear-like’projection from the tip of the stipule.
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