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Allergic rhinitis may be seasonal, perennial, or episodic. [9] Seasonal allergic rhinitis occurs in particular during pollen seasons. It does not usually develop until after 6 years of age. Perennial allergic rhinitis occurs throughout the year. This type of allergic rhinitis is commonly seen in younger children. [43]
Lolium perenne, common name perennial ryegrass, [1] English ryegrass, winter ryegrass, or ray grass, is a grass from the family Poaceae. It is native to Europe, Asia and northern Africa, but is widely cultivated and naturalised around the world. Lolium perenne, showing ligule and ribbed leaf
Rhinitis is categorized into three types (although infectious rhinitis is typically regarded as a separate clinical entity due to its transient nature): (i) infectious rhinitis includes acute and chronic bacterial infections; (ii) nonallergic rhinitis [14] includes vasomotor, idiopathic, hormonal, atrophic, occupational, and gustatory rhinitis, as well as rhinitis medicamentosa (rebound ...
Treating allergy symptoms with over-the-counter medication, saline spray, and, if warranted, allergy medication or injections from your doctor, may also help reduce GI symptoms as a result.
Fungal diseases; Anthracnose: Colletotrichum graminicola Glomerella graminicola [teleomorph]: Black head molds: Alternaria spp. Cladosporium herbarum Davidiella tassiana, Mycosphaerella tassiana [teleomorph]
Perennial ryegrass staggers is poisoning by peramine, lolitrem B, and other toxins that are contained in perennial ryegrass (Lolium perenne), and produced by the endophyte fungus Epichloë festucae which can be present in all parts of the grass plant, but tends to be concentrated in the lower part of the leaf sheaths, the flower stalks and seeds.
Ragweed pollen is notorious for causing allergic reactions in humans, specifically allergic rhinitis. Up to half of all cases of pollen-related allergic rhinitis in North America are caused by ragweeds. [8] The most widespread species of the genus in North America is Ambrosia artemisiifolia.
Canada wild rye is sometimes used for stabilizing eroded areas and for vegetating metal-rich soils in reclaimed mines. [5] Elymus canadensis is an allotetraploid, which mainly reproduces by self-pollination, but can cross-pollinate with several other strains of Elymus in order to provide more genetic variation. In addition, because of its ...