Welcome to the A to Z of Bonsai.
We are compiling a worldwide A to Z of Bonsai database. The A to Z is written collaboratively by the people who use it and we would like to encourage anyone reading this page to contribute to what has become the worlds greatest encyclopedia of bonsai terms. Entries when they are made will be added to an editable list which will be checked prior to publication. Photos and images of the bonsai term can be added and links made to relevant web pages.
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 - 37 entries |
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ME>RACEME - A type of ELONGATED flower with individual stalks growing from a single stem e.g wisteria
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| Thanks to - Wikipedia for use of the image |
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RAFFIA - Made of strips of BARK from the raphia palm, this is soaked and wrapped arround a section of tree which requires significant bending, to protect it from splitting and from damage by the wire
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| Thanks to - Kaizen Bonsai for use of the image |
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RAKE - Small rake used in BONSAI>BONSAI>BONSAI for clearing soilaround NEBARI or tree ROOTS (during REPOTTING). Usually combined with either TWEEZERS or a SPATULA at the other end of the tool.
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RAMIFICATION - Ramification MEans branching or branch development that displays TAPER, resulting in a tracery of fine branches at the extremities of the branches. It is encouraged by PRUNING and may be integrated with practices that promote leaf reduction
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| Thanks to - bonsai4me.com for use of the image |
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Red SPIDER MITE - There are two types : the FRUIT tree RED SPIDER MITE on broad-leaved trees and the CONIFER spinning mite on conifers. Indications of infection are an unhealthy browning of the foliage accompanied by a silky webbing. Tiny spider-like mites may also be seen on leaf undersides. These can cause serious damage and should be sprayed with INSECTICIDE - ideally MALATHION or DERRIS. Alternative type is the Glasshouse Red Spider Mite or "Web-forming Tetranychus".
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RED SPOT DISEASE - This is a disease of maples which is triggered by a fungal attack causing brilliant red "pimples" to appear on the BARK. Initially the bark, and then the whole branch dies back. The only known treatMEnt is to prune back to healthy wood.
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REDUCTION BUILDING - This process uses accelerated growth techniques and massive foliage and branch reduction, followed by strong re-growth, more moderate reduction and training (primARILy by training). It is used to produce larger trunks with character and TAPER, particularly in TROPICAL regions but may be applied in temperate regions to SPECIES like aZAleas.
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REDWOOD - CALIFORNIA (SEQUOIA SEMPERVIRENS) - Very tall EVERGREEN CONIFER with a COLUMNAR outline and drooping lower branches. It has attractive, red/brown fibrous BARK and flattened, NEEDLE-like LEAVES which are mid-green and curved on main SHOOTS and dark green, flat and narrow on lateral ones.
STYLE : Ideal for formal and informal upright, slanting and group styles.
WARNING : Branches tend to resuME upward growth after freeing from any WIRING.
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| Thanks to - Wikipedia for use of the image |
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RENIFORM (LEAF) - Kidney SHAPEd with stem attached at concave edge.
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| Thanks to - Wikipedia for use of the image |
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REPOTTING - The ROOTS of potted trees are limited by the size of their container as to how far they can spread. After a period of tiME which varies dependant on the SPECIES of tree, the root systems of all pot-grown trees fill their containers, eventually becoming 'POT BOUND' and in some cases they begin to push the tree out of the pot.
When this happens the fine FEEDER ROOTS that are essential to the uptake of water and nutrients have little room to grow, are far away from the main TRUNK OF THE TREE, the soil structure deteriorates and the plant starts to suffer. At this point repotting is required to allow fresh COMPOST/potting medium/substrate to be inserted in and around the root system and the root sytem itself may require CUTTING>CUTTING back so that it can continue to form fine feeder roots closer to the trunk.
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| Thanks to - Kenny Middleton for use of the image |
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RESPIRATION - The breathing action of a plant. The process involves the exchange of oxygen from the atmosphere with carbon dioxide which is released during the conversion of store foods into plant energy. In effect the reverse of PHOTOSYNTHESIS.
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RETICULATE LEAF - Leaf with a complex surface pattern, usually created by a network of veins.
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| Thanks to - Wikipedia for use of the image |
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