Arctous

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Arctous
Arctous alpina var. japonica (flower s2).JPG
Arctous alpina var. japonica
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Ericaceae
Subfamily: Arbutoideae
Genus: Arctous
Nied. (1889)

Arctous is a genus of flowering plants referred to by the common name "bearberry", [1] a name sometimes shared with certain species of the related genus Arctostaphylos , in particular, A. uva-ursi . Although the two genera are related, certain characters, such as deciduous, marcescent leaves, rugose-reticulate venation, and finely-toothed leaves are more typical of Arctous than Arctostaphylos.

Three species are accepted. [2]

Related Research Articles

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<i>Arctous alpina</i> Species of flowering plant

Arctous alpina, the alpine bearberry, mountain bearberry or black bearberry, is a dwarf shrub in the heather family Ericaceae. The basionym of this species is Arbutus alpinaL..

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<i>Arctostaphylos densiflora</i> Species of flowering plant

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<i>Epinotia nemorivaga</i> Species of moth

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<span class="mw-page-title-main">Spruce broom rust</span> Species of fungus

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. This disease alternates its life cycle between two hosts, with the spruce serving as the primary host and bearberry serving as the secondary or alternate host. The name for the disease comes from the distinctive “witches broom”, commonly yellow in color, which forms on the spruce after young needles have been infected. Management must be carried out through physical or mechanical methods, such as the pruning of brooms or the removal of the secondary host from the area, because no chemical control measures have yet been determined to be economically effective. Generally, spruce broom rust is seen as a mostly cosmetic issue, and it is very rarely the direct cause of tree death; however, research has shown a reduction in overall productivity and health of infected trees, making it an important issue for logging and timber companies.

References

  1. "Arctous alpina (alpine-bearberry)". Go Botany. New England Wildflower Society. Retrieved 21 May 2017.
  2. "Arctous Nied". Plants of the World Online . Retrieved 21 August 2024.