Himalayan birch

Names and Synonyms

Common Names

• Himalayan Birch
• Himalayan silver birch
• Indian paper birch

Scientific Names

Accepted name

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified within the phylum Streptophyta and the class Equisetopsida. Following the subclass Magnoliidae, it is categorized under the order Fagales and the family Betulaceae. Finally, it is identified by the genus Betula, specifically as the species Betula utilis.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, known as Betula utilis, exhibits a distinct geographical range spanning across several key regions. In Northern Europe, its presence can be identified within Great Britain. Moving eastward, it is widely distributed throughout the vast landscapes of Central Asia. Specifically, it flourishes in the territories of Kazakhstan and Kirgizstan. Furthermore, the species is also established within the borders of Tadzhikistan and Uzbekistan.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Betula utilis is primarily defined by its adaptation to high-altitude montane and subalpine environments, where it thrives within a specific vertical distribution. This species is characteristically found at high elevations, occupying an ecological niche that ranges from a minimum of 2100 m AMSL to a maximum of 4300 m AMSL. Within this altitudinal belt, it typically inhabits rocky slopes, scree areas, and mountain ridges, often serving as a pioneer species in disturbed or unstable substrates. Its ability to withstand the physiological stresses of high-elevation habitats—including intense solar radiation, extreme temperature fluctuations, and heavy snow cover—allows it to persist in environments that are often inhospitable to other woody vegetation.

Elevational range max:

4300 m AMSL

Elevational range min:

2100 m AMSL

Life history

The life history of Betula utilis is characterized by its status as a perennial species, ensuring its long-term presence within its ecological niche. As a phanerophyte, it maintains its photosynthetic organs on elevated woody structures, a life form that allows it to thrive in various mountainous environments. This plant exhibits a deciduous growth pattern, shedding its foliage annually in response to seasonal changes, which is a critical adaptation for surviving harsh climatic conditions. Through its perennial nature and phanerophyte life form, Betula utilis demonstrates a stable and enduring biological strategy suited for its specific habitat.

Deciduousness :

deciduous

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Betula utilis is characterized by its distinct growth form as a large, woody tree that functions as a self-supporting organism. As a terrestrial species, it does not exhibit aquatic, semiaquatic, or epiphytic tendencies, nor does it act as a climber, liana, or vine; instead, it maintains a robust, independent structural integrity without relying on other plants for support. Being an independent species, it does not function as a parasite, maintaining its own nutritional processes. Its structural composition is defined by its woody nature, which supports its substantial height and upright development within its natural habitat.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Betula utilis is characterized by a C3 photosynthetic pathway, a common metabolic strategy for temperate woody species that facilitates carbon fixation under moderate environmental conditions. The morphological structure of its foliage features rhomboid leaf forms with distinctly toothed margins, and the plant lacks specialized defensive structures such as leaf thorns or spines. Regarding its structural composition, the stem displays specific density (SSD) variations, with a recorded minimum value of 500 mg/cm³ and a maximum value of 539.8 mg/cm³, resulting in a calculated mean stem specific density of 644.644444444444 mg/cm³.

Leaf form :

rhomboid

Leaf margin :

toothed

Leaf spines :

no

Leaf thorns :

no

Photosynthetic pathway :

C3

Stem specific density (SSD) max:

539.8 mg/cm³

Stem specific density (SSD) mean:

644.644444444444 mg/cm³

Stem specific density (SSD) min:

500 mg/cm³

Reproduction

The reproduction of Betula utilis is characterized by a specific seasonal flowering window and the production of minute seeds. The flowering period typically begins in June and concludes in July, although the timing can be variable depending on environmental conditions. Following pollination, the plant produces seeds that are remarkably lightweight, with a mean seed mass of approximately 0.0005225 g. The variation in seed size is relatively narrow, with individual seed masses ranging from a minimum of 0.00019 g to a maximum of 0.00097 g.

Flowering time :

Jun

Flowering time :

Jul

Seed mass max:

0.00097 g

Seed mass mean:

0.0005225 g

Seed mass min:

0.00019 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Betula utilis has 1 reported plant parts identified across 1 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf.

Leaf

1. Plants (Basel, Switzerland)

Chemicals

Betula utilis has 3 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Betulin, Flavonoid, betulinic acid.

Betulin

1. Dr. Duke

Flavonoid

1. Plants (Basel, Switzerland)

betulinic acid

1. Dr. Duke

Activities

Betula utilis has 24 reported activities identified across 1 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Anthelmintic, AntiHIV, Anticancer, Anticarcinomic.

Antibacterial

1. Dr. Duke
2. Comparative biochemistry and physiology. Toxicology & pharmacology : CBP

Anthelmintic

1. Dr. Duke

AntiHIV

1. Dr. Duke

Anticancer

1. Dr. Duke

Anticarcinomic

1. Dr. Duke

Antiedemic

1. Dr. Duke

Antifeedant

1. Dr. Duke

Antiflu

1. Dr. Duke

Antiinflammatory

1. Dr. Duke

Antileukemic

1. Dr. Duke