Abies holophylla

Source: Wikipedia, the free encyclopedia.

Abies holophylla
Foliage on young tree

Near Threatened  (IUCN 3.1)[1]
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Gymnospermae
Division: Pinophyta
Class: Pinopsida
Order: Pinales
Family: Pinaceae
Genus: Abies
Species:
A. holophylla
Binomial name
Abies holophylla
Maxim.

Abies holophylla, also called needle fir

Ussuriland, and China in the provinces of Heilongjiang, Jilin, and Liaoning
.

It is an evergreen coniferous tree growing to 30 m (100 ft) tall and 1 m (3 ft) in trunk diameter with a narrowly conical crown of horizontal spreading branches. The bark is scaly and gray-brown with resin blisters. The leaves ("needles") are flattened, 2–4 cm (3⁄4–1+1⁄2 in) long and 1.5–2.5 mm (1⁄16–3⁄32 in) thick, spread at right angles from the shoot, and end in a point.[1]

They spread on two sides, but not flat like for example in silver fir. Usually they more or less rise up forming with the shoot a V-shape empty compartment above it. Unlike in silver fir, the leaves here are sharp and prickly, without any indentation at the top.[3]

They are bright green above and whitish-green below with 2 whitish strips, each of which is formed by 7–10 wax-covered stomatal bands. The shoots are glabrous, shiny yellow-gray when young and turning gray-brown. The cones are 12–14 cm (4+3⁄4–5+1⁄2 in) long by 4–5 cm (1+1⁄2–2 in) wide, yellow-brown, and slightly tapering with a bluntly rounded apex. The scale bracts are hidden under the cone scales. The seeds, 8–9 mm (5⁄16–3⁄8 in) long with a wedge-shaped wing 1.5 cm (5⁄8 in) long, are released after the cones disintegrate at maturity in October.

Manchurian fir is sometimes, but not commonly, used as an ornamental plant.[1]

Gallery

  • Unlike in some of other firs, unmature cones here are not purple-bluish, but green. [3]
    Unlike in some of other firs, unmature cones here are not purple-bluish, but green. [3]
  • Disintegrating cones. The cones in both images are covered by resin.
    Disintegrating cones. The cones in both images are covered by resin.
  • Young developing cones in early July. In contrast to spruce, even large fir cones are raised.
    Young developing cones in early July. In contrast to
    spruce
    , even large fir cones are raised.
  • Foliage - characteristic for fir: flat needle leaves with two whitish stripes on the bottom
    Foliage - characteristic for
    fir
    : flat needle leaves with two whitish stripes on the bottom

References

  1. ^
    doi:10.2305/IUCN.UK.2013-1.RLTS.T42287A2969916.en
    . Retrieved 12 November 2021.
  2. ISBN 978-89-97450-98-5. Archived from the original (PDF) on 25 May 2017. Retrieved 25 January 2016 – via Korea Forest Service
    .
  3. ^
    ISBN 83-01-01663-9
    .

External links
Retrieved from "https://en.wikipedia.org/w/index.php?title=Abies_holophylla&oldid=1192315897"