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  2. Fraxinus americana - Wikipedia

    en.wikipedia.org/wiki/Fraxinus_americana

    Fraxinus americana, the white ash or American ash, is a fast-growing species of ash tree native to eastern and central North America. White ash trees are threatened by the invasive emerald ash borer .

  3. Fraxinus angustifolia - Wikipedia

    en.wikipedia.org/wiki/Fraxinus_angustifolia

    Fraxinus angustifolia subsp. angustifolia has become a weed in many parts of Australia, where it is known as Desert Ash. It has been widely planted as a street and park tree, and has spread to native bushland and grasslands, as well as stream banks and drainage lines, out-competing native plants for moisture, light and nutrients. [7] [8]

  4. Fraxinus - Wikipedia

    en.wikipedia.org/wiki/Fraxinus

    European ash in flower Narrow-leafed ash (Fraxinus angustifolia) shoot with leaves. Fraxinus (/ ˈ f r æ k s ɪ n ə s /), commonly called ash, is a genus of plants in the olive and lilac family, Oleaceae, [4] and comprises 45–65 species of usually medium-to-large trees, most of which are deciduous trees, although some subtropical species are evergreen trees.

  5. Juniperus ashei - Wikipedia

    en.wikipedia.org/wiki/Juniperus_ashei

    Juniperus ashei (Ashe juniper, mountain cedar, blueberry juniper, post cedar, or just cedar) is a drought-tolerant evergreen tree, native from northeastern Mexico and the south-central United States to southern Missouri. The largest areas are in central Texas, where extensive stands occur.

  6. AccuWeather's 2023 US spring allergy forecast - AOL

    www.aol.com/weather/accuweathers-2023-us-spring...

    Tree pollen is expected to be the worst in the Pacific Northwest this year. For allergy sufferers living in this region, limiting the amount of time spent outside this spring may be a good idea ...

  7. Fraxinus nigra - Wikipedia

    en.wikipedia.org/wiki/Fraxinus_nigra

    Image of black ash trunk. Tree is located in a seasonally wet, riparian habitat near a small-scale stream. Tree bark is corky and spongy. Black ash is a medium-sized deciduous tree reaching 15–20 metres (49–66 ft) (exceptionally 26 metres (85 ft)) tall with a trunk up to 60 cm (24 inches) diameter, or exceptionally to 160 cm (63 inches).

  8. List of pollen sources - Wikipedia

    en.wikipedia.org/wiki/List_of_pollen_sources

    The worker bees in the colony mix dry pollen with nectar and/or honey with their enzymes, and naturally occurring yeast from the air. Workers then compact the pollen. storing each variety in an individual wax hexagonal cell , typically located within their bee brood nest. This creates a fermented pollen mix call beekeepers call 'bee bread'. Dry ...

  9. Candidatus Phytoplasma fraxini - Wikipedia

    en.wikipedia.org/wiki/Candidatus_Phytoplasma_fraxini

    Within the ash populations that were sampled, 50% of the trees had crown die-back of 10% or more caused by ash yellows. [19] In a different study that looked at the annual increase of ash yellows in six populations of white ash in New York , the average annual increase in disease incidence was found to be 4.5%. [ 20 ]