Raceme
Special terms
Type of inflorescence.
Glossary of terms
A reference section with categories and short explanations.
Rejuvenating a violet
Special terms
Violet rosettes require mandatory rejuvenation every 2–3 years; during that time the rosette develops a bare stem. Rejuvenation is carried out by cutting off the upper part of the rosette (the crown) and re-rooting it in water. When rejuve…
Rhizome
Special terms
An underground modified shoot with reduced scale-like leaves. In some plants, a rhizome is formed aboveground or half submerged in the substrate.
Root collar
Special terms
The boundary between the root and the stem.
Rooted cutting
Special terms
Leaf cutting that has developed roots.
Rosette
Special terms
A group of leaves densely arranged on an underground or aboveground stem with shortened internodes.