Abies holophylla
Abies holophylla, also called needle fir[2] or Manchurian fir, is a species of fir native to mountainous regions of northern Korea, southern Ussuriland, and China in the provinces of Heilongjiang, Jilin, and Liaoning.
Abies holophylla | |
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Foliage on young tree | |
Scientific classification | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Division: | Pinophyta |
Class: | Pinopsida |
Order: | Pinales |
Family: | Pinaceae |
Genus: | Abies |
Species: | A. holophylla |
Binomial name | |
Abies holophylla Maxim. | |
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.[3]
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.[4]
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.[3]
Gallery
- Unlike in some of other firs, unmature cones here are not purple-bluish, but green. [4]
- 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.
- Foliage - characteristic for fir: flat needle leaves with two whitish stripes on the bottom
References
- Katsuki, T.; Zhang, D & Rushforth, K. (2013). "Abies holophylla". IUCN Red List of Threatened Species. 2013: e.T42287A2969916. doi:10.2305/IUCN.UK.2013-1.RLTS.T42287A2969916.en.
- English Names for Korean Native Plants (PDF). Pocheon: Korea National Arboretum. 2015. p. 333. ISBN 978-89-97450-98-5. Archived from the original (PDF) on 25 May 2017. Retrieved 25 January 2016 – via Korea Forest Service.
- Conifer Specialist Group (1998). "Abies holophylla". IUCN Red List of Threatened Species. 1998. Retrieved 12 May 2006.CS1 maint: ref=harv (link)
- Seneta, Włodzimierz (1981). Drzewa i krzewy iglaste (Coniferous trees and shrubs) (in Polish) (1st ed.). Warsaw: Państwowe Wydawnictwo Naukowe (PWN). ISBN 83-01-01663-9.