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Laminated root rot also known as yellow ring rot is caused by the fungal pathogen Phellinus weirii.Laminated root rot is one of the most damaging root disease amongst conifers in northwestern America and true firs, Douglas fir, Mountain hemlock, and Western hemlock are highly susceptible to infection with P. weirii.
Pittosporum tenuifolium is a small evergreen tree endemic to New Zealand – growing up to 10 m (33 ft) – commonly known as kōhūhū and black matipo, and by other Māori names kohukohu and tawhiwhi. Its small, very dark, reddish-purple flowers generally go unnoticed, and are scented only at night. The Latin tenuifolium means "slender-leaved ...
Arbutus menziesii, or Pacific madrone (commonly madrone or madrona in the United States and arbutus in Canada), is a species of broadleaf evergreen tree in the family Ericaceae. It has waxy foliage, a contorted growth habit, and flaky bark. It is native to the western coastal areas of North America, from British Columbia to California.
Torreya taxifolia is an evergreen tree that may reach heights of 18 metres (59 ft) with an 80 centimetres (31 in) diameter trunk, although it typically grew to 9–12 metres (30–39 ft) tall and 30–50 centimetres (12–20 in) in diameter, and most stands today are composed of immature trees of less than 3 metres (9.8 ft) tall.
Wollemia nobilis is an evergreen tree reaching 25–40 m (82–131 ft) tall. The bark is very distinctive, dark brown, and knobbly, quoted as resembling the breakfast cereal Coco Pops . [ 7 ] The tree coppices readily, and most specimens are multiple-trunked or appear as clumps of trunks thought to derive from old coppice growth, with some ...
The arbuscular type is the most common among land plants and is regarded as the ancestral type. However, tree species comprising the canopy of temperate and especially boreal forests in the Northern Hemisphere tend to associate with ectomycorrhizal fungi. [13] [14] Plant and fungal partners within a network may enact a variety of symbiotic ...
Christmas tree prices continue to climb. Last year, U.S. customers paid an average of about $80 for a real tree, according to the National Christmas Tree Association.That was up from $70 in 2021 ...
The plant pathogenic fungus Leucostoma kunzei (formerly Valsa kunzei) is the causal agent of Leucostoma canker (also known as Cytospora canker or spruce canker), a disease of spruce trees found in the Northern Hemisphere, predominantly on Norway spruce (Picea abies) and Colorado blue spruce (Picea pungens).