Olga Bay Larch
Encyclopedia
Olga Bay larch or Olgan larch (Larix olgensis) is a species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

 of larch
Larch
Larches are conifers in the genus Larix, in the family Pinaceae. Growing from 15 to 50m tall, they are native to much of the cooler temperate northern hemisphere, on lowlands in the north and high on mountains further south...

. It is named after Olga Bay
Olga Bay
Olga Bay is a small bay in the Sea of Japan at the east coast of Primorsky Krai.Olga Bay was discovered in 1859 by the Russian corvette Amerika and named after Saint Olga....

 in the Sea of Japan
Sea of Japan
The Sea of Japan is a marginal sea of the western Pacific Ocean, between the Asian mainland, the Japanese archipelago and Sakhalin. It is bordered by Japan, North Korea, Russia and South Korea. Like the Mediterranean Sea, it has almost no tides due to its nearly complete enclosure from the Pacific...

.

The distribution of the species includes Central Sikhote-Alin
Sikhote-Alin
The Sikhote-Alin is a mountain range in Primorsky and Khabarovsk Krais, Russia, extending about 900 km to the northeast of the Russian Pacific seaport of Vladivostok...

, rarely in North Korea
North Korea
The Democratic People’s Republic of Korea , , is a country in East Asia, occupying the northern half of the Korean Peninsula. Its capital and largest city is Pyongyang. The Korean Demilitarized Zone serves as the buffer zone between North Korea and South Korea...

 and Heilongjiang
Heilongjiang
For the river known in Mandarin as Heilong Jiang, see Amur River' is a province of the People's Republic of China located in the northeastern part of the country. "Heilongjiang" literally means Black Dragon River, which is the Chinese name for the Amur. The one-character abbreviation is 黑...

, between 500 and 1100 meters in altitude.

It's a deciduous
Deciduous
Deciduous means "falling off at maturity" or "tending to fall off", and is typically used in reference to trees or shrubs that lose their leaves seasonally, and to the shedding of other plant structures such as petals after flowering or fruit when ripe...

 coniferous tree, growing to 25–30 meters tall. Its leaves
Leaf
A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....

 are needle-like, dark-green, 2–3 centimeters long with cones from 18 to 25 millimeters in length.

Also Olga Bay larch is sometimes treated as a variety of Dahurian Larch
Dahurian Larch
Dahurian Larch, Larix gmelinii, is a species of larch native to eastern Siberia, and adjacent northeastern Mongolia, northeastern China and North Korea.-Description:...

 Larix gmelinii var. olgensis (Ostenf. & Syrach).

Larix olgensis is a vulnerable species
Vulnerable species
On 30 January 2010, the IUCN Red List of Threatened Species identified 9694 Vulnerable species, subspecies and varieties, stocks and sub-populations.-References:...

.

External links


Sources

  • EN.Jiří Kolbek, Miroslav Šrůtek, Elgene Owen. Forest Vegetation of Northeast Asia. #Larix olgensis p. 196
  • RU.Усенко Н. В.. Деревья, кустарники и лианы Дальнего Востока. Хабаровск: Книжное издательство, 1984
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