Mongolian Oak

Names and Synonyms

Common Names

• Mongolian Oak

Scientific Names

Accepted name

Synonyms

• Quercus sessiliflora var. mongolica

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Fagales, it is a member of the family Fagaceae and is specifically classified under the genus Quercus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a wide-ranging distribution across several distinct regions of Northern Asia. In Siberia, its presence is specifically noted in the Chita region. The species is also well-established within the Russian Far East, particularly in the Amur area. Furthermore, it can be found throughout the Khabarovsk region and along the Kamchatka Peninsula. Finally, its geographical reach extends to the Kuril Islands, completing its northern maritime distribution.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Quercus mongolica is characterized by its adaptability to diverse topographical and environmental conditions, thriving across a broad altitudinal gradient. It is typically found at elevations ranging from a minimum of 200 m AMSL to a maximum of 2100 m AMSL, with a mean elevational range centered around 1150 m AMSL. This species occupies a variety of distinct habitats, establishing itself within forests, on hills, and throughout mountainous terrains. Furthermore, it is frequently observed in proximity to rivers and can successfully colonize stony places, demonstrating significant resilience to different soil textures and moisture levels within its range.

Elevational range max:

2100 m AMSL

Elevational range mean:

1150 m AMSL

Elevational range min:

200 m AMSL

Habitat :

forest, hills, mountains, rivers, stony places

Life history

The life history of Quercus mongolica is characterized by a perennial lifecycle, allowing the species to establish long-term presence within its ecosystem. As a phanerophyte, it maintains its photosynthetic organs well above the ground, typically manifesting as a robust tree form. This growth habit is further defined by its deciduousness, meaning the plant undergoes a seasonal cycle of shedding its foliage. Depending on its structural development and ecological niche, it functions specifically as a phanerophyte, ensuring its survival through various environmental stages.

Deciduousness :

deciduous

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Quercus mongolica is characterized by its robust growth form as a woody tree, reaching a maximum plant height of approximately 10 m. As a terrestrial species, it lacks aquatic or semiaquatic adaptations, functioning as an independent organism rather than a parasite or epiphyte. The plant is strictly self-supporting, possessing a sturdy structure that distinguishes it from lianas, vines, or other climbing forms. Its physical development is defined by its woody nature, providing the structural integrity necessary for its upright, arboreal habit.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

10 m

Woodiness :

woody

Physiology

The physiology of Quercus mongolica is characterized by a C3 photosynthetic pathway, a common metabolic strategy for woody temperate species that optimizes carbon fixation under moderate environmental conditions. The plant exhibits specific morphological adaptations in its foliage, featuring obovate leaf forms with distinctly toothed margins, while notably lacking the development of leaf thorns or spines. Structurally, the plant demonstrates significant mechanical integrity provided by its wood, with a mean stem specific density (SSD) of 770 mg/cm³, reflecting a robust internal architecture suitable for its growth habit.

Leaf form :

obovate

Leaf margin :

toothed

Leaf spines :

no

Leaf thorns :

no

Photosynthetic pathway :

C3

Stem specific density (SSD) mean:

770 mg/cm³

Reproduction

The reproduction of Quercus mongolica is characterized by a specific seasonal flowering window and the production of distinct dry fruits and seeds. The flowering period typically occurs in May, marking the onset of its reproductive cycle. Following pollination, the plant develops dry fruits that vary in size; these fruits have a mean length of 1.55 cm (ranging from a minimum of 1.3 cm to a maximum of 1.8 cm) and a mean width of 2.15 cm (ranging from a minimum of 2 cm to a maximum of 2.3 cm). The resulting seeds are substantial, with a mean mass of approximately 2.21 g, though individual seed weights can fluctuate from a minimum of 1.097 g to a maximum of 2.98 g. Furthermore, the seeds maintain a consistent volume, recorded at a mean, minimum, and maximum of 1900 mm³.

Flowering time :

May

Fruit dryness :

dry

Fruit length max:

1.8 cm

Fruit length mean:

1.55 cm

Fruit length min:

1.3 cm

Fruit width max:

2.3 cm

Fruit width mean:

2.15 cm

Fruit width min:

2 cm

Seed mass max:

2.98 g

Seed mass mean:

2.20616666666667 g

Seed mass min:

1.097 g

Seed volume max:

1900 mm³

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Quercus mongolica has 8 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include BETA-SITOSTEROL, 1-OCTADECANOL, Daucosterol, Fridelin, Friedelin.

BETA-SITOSTEROL

1. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials
2. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

1-OCTADECANOL

1. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials

Daucosterol

1. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials

Fridelin

1. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials

Friedelin

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica

Gallic acid

1. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials

beta-Amyrin

1. Zhong yao cai = Zhongyaocai = Journal of Chinese medicinal materials

glutinol

1. Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica