Betula maximowicziana

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a specific geographical range within the temperate regions of East Asia. Its distribution is primarily concentrated in the islands and coastal areas of the Far East. Specifically, it can be found growing across the Kuril Islands located in the Russian Far East. Additionally, the species maintains a significant presence throughout the various regions of Japan. This limited range highlights its preference for the unique maritime climates found in these specific territories.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Betula maximowicziana is characterized by a perennial lifecycle, allowing the plant to persist through multiple growing seasons and establish long-term presence within its ecosystem. As a woody species, it is classified under the life form of phanerophyte, specifically exhibiting traits of both phanerophyte and phanerophyte categories, which indicates that its perennating buds are located high above the ground on branches. This growth strategy enables the plant to withstand seasonal environmental shifts and reach significant structural maturity over time.

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Betula maximowicziana is characterized by its status as a woody tree that functions as a self-supporting organism. As a terrestrial species, it does not inhabit aquatic or semiaquatic environments, nor does it exhibit epiphytic or climbing habits such as lianas or vines. The plant is entirely independent, lacking any parasitic relationship with other organisms. Its structure is defined by a robust, woody growth form, consistent with its classification as a large tree.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Woodiness :

woody

Physiology

The physiology of Betula maximowicziana is characterized by a metabolic framework governed by the C3 photosynthetic pathway, a common adaptation in temperate woody species that facilitates carbon fixation through the direct carboxylation of ribulose-1,5-bisphosphate by the enzyme RuBisCO. This C3 pathway enables the plant to optimize gas exchange and energy production under the fluctuating light intensities and seasonal temperature variations typical of its natural habitat. To support its growth and structural integrity, the plant utilizes complex physiological mechanisms for nutrient uptake and water transport, relying on a sophisticated vascular system to move water and minerals from the root zone to the canopy via transpiration pull. Furthermore, its physiological resilience is tied to its ability to regulate stomatal conductance, balancing the necessity of CO2 uptake for photosynthesis with the imperative of minimizing transpirational water loss, especially during periods of environmental stress.

Photosynthetic pathway :

C3

Reproduction

Reproduction in Betula maximowicziana is characterized by the production of specialized seeds that exhibit specific physical dimensions essential for its dispersal and germination processes. The reproductive output of this species is defined by a very fine seed mass, with a recorded mean weight of 0.000513333 g. Variation within the seed population is relatively narrow, ranging from a minimum mass of 0.00048 g to a maximum mass of 0.00058 g. These minute seed characteristics are typical of the genus and play a critical role in the plant's ability to colonize new habitats through wind dispersal.

Seed mass max:

0.00058 g

Seed mass mean:

0.000513333 g

Seed mass min:

0.00048 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Betula maximowicziana has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Betulin, betulinic acid.

Betulin

1. Dr. Duke

betulinic acid

1. Dr. Duke

Activities

Betula maximowicziana has 23 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Anthelmintic, AntiHIV, Antibacterial, Anticancer, Anticarcinomic.

Anthelmintic

1. Dr. Duke

AntiHIV

1. Dr. Duke

Antibacterial

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