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Witch's brooms on downy birch, caused by the fungus Taphrina betulina Witch's broom on a white pine. Witch's broom in Yamaska National Park, QC. Witch's broom or witches' broom is a deformity in a woody plant, typically a tree, where the natural structure of the plant is changed. A dense mass of shoots grows from a single point, with the ...
There can be several witches broom in a tree. [4] Witches broom, formed by Taphrina betulina can be found on dwarf birch (Betula nana), Betula nana x pubescens, silver birch (Betula pendula), downy birch (Betula pubescens) and Betula pubescens var.glabrata. [1] A phytoplasma can also form similar looking witches broom on birch. [4]
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Cystotheca lanestris, the live oak witch's broom fungus, is a species of mildew that infects buds and induces stem galls called witch's brooms on oak trees in California, Arizona, and Mexico in North America. [2] [3] Witch's brooms are "abnormal clusters of shoots that are thickened, elongated, and highly branched."
One example of a modern witch's ladder is a string of 40 beads or a cord with 40 knots. Sometimes feathers, bones, and other trinkets are braided into the string as symbols for a desired spell effect. An earlier version of a witch's ladder consisted of a rope or cord of three, nine, or thirteen knots.
Taphrina wiesneri is a plant pathogen causing witch's broom, or plant gall formations, on cherry trees (Prunus & Cerasus spp). It is an important pest species of the ornamental cherry Cerasus X yedoensis in Japan .
A besom (/ ˈ b iː z əm /) is a broom, a household implement used for sweeping. The term is mostly reserved for a traditional broom constructed from a bundle of twigs tied to a stout pole. The twigs used could be broom (i.e. Genista, from which comes the modern name "broom" for the tool), heather or similar.
Spruce broom rust or yellow witches' broom rust is a fungal plant disease caused by the basidiomycete fungus known as Chrysomyxa arctostaphyli.It occurs exclusively in North America, with the most concentrated outbreaks occurring in northern Arizona and southern Colorado on blue and Engelmann spruce, as well as in Alaska on black and white spruce. [2]