Mountain Ash

Names and Synonyms

Common Names

• Mountain Ash
• Qing Pi Tree
• Tetracentron

Scientific Names

Accepted name

Synonyms

• Tetracentron sinense var. himalense

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 Trochodendrales, it is classified under the family Trochodendraceae. Finally, its specific taxonomic designation is within the genus Tetracentron.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution across several distinct regions of Asia. In China, it can be found throughout the South-Central, North-Central, and Southeast territories. Its presence also extends into the high-altitude regions of Tibet. Additionally, the species is located within the East Himalaya region of the Indian Subcontinent. These varied locations highlight the plant's ability to thrive in diverse ecological landscapes.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Tetracentron sinense is characterized by its presence across a broad altitudinal gradient within montane ecosystems. This species typically thrives in high-altitude environments, occupying a significant vertical niche that ranges from a minimum elevation of 1,200 m AMSL to a maximum elevation of 3,600 m AMSL. Within this distribution, the plant finds its optimal ecological conditions at a mean elevation of approximately 2,600 m AMSL, suggesting a strong affinity for temperate to subalpine montane forests where specific moisture and temperature regimes are maintained.

Elevational range max:

3600 m AMSL

Elevational range mean:

2600 m AMSL

Elevational range min:

1200 m AMSL

Life history

The life history of Tetracentricon sinense is characterized by its status as a perennial species, allowing it to maintain its presence in its natural habitat over multiple growing seasons. As a long-lived woody plant, it avoids the rapid turnover seen in annuals or the transitional phases of biennials, instead establishing a stable structural presence within its ecosystem. This perennial nature enables the plant to invest significant energy into robust vegetative growth and complex branching systems, which support its long-term reproductive capabilities and survival through varying environmental conditions.

Lifecycle :

perennial

Morphology

The morphology of Tetracentroon sinense is characterized by a robust tree growth form, reaching a significant plant height with a mean measurement of approximately 30 m. As a woody species, it possesses a sturdy structure and functions as an independent organism, neither acting as a parasite nor as an epiphyte, maintaining a strictly terrestrial existence. Although it exhibits a self-supporting habit rather than acting as a liana or vine, its structural development is defined by its significant height and solid woody composition.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height mean:

30 m

Woodiness :

woody

Physiology

The physiology of Tetracentroon sinense is characterized by a C3 photosynthetic pathway, which dictates its carbon fixation processes and metabolic efficiency within its natural habitat. The morphological dimensions of its foliage reflect a specific physiological investment in surface area for light interception, with leaf lengths typically averaging 11 cm, though they can range from a minimum of 7 cm to a maximum of 15 cm. Complementing this longitudinal growth, the leaf width exhibits significant variability, maintaining a mean width of 0.75 cm; however, individual leaves may be as narrow as 0.4 cm or as wide as 1.1 cm. This variation in leaf geometry suggests a dynamic physiological adaptation to environmental light availability and moisture retention requirements.

Leaf length max:

15 cm

Leaf length mean:

11 cm

Leaf length min:

7 cm

Leaf width max:

1.1 cm

Leaf width mean:

0.75 cm

Leaf width min:

0.4 cm

Photosynthetic pathway :

C3

Reproduction

The reproduction of Tetracentron sinense is characterized by the development of minute floral and fruit structures that support the production of extremely light seeds. The flowering stage involves small blossoms with a length ranging from a minimum of 0.1 cm to a maximum of 0.2 cm. Following successful pollination, the plant produces small fruits that vary in size, with a minimum length of 0.3 cm, a mean length of 0.4 cm, and reaching a maximum of 0.5 cm. The reproductive cycle concludes with the dispersal of seeds that are remarkably uniform in weight; each seed possesses a consistent mass of 0.00177 g, representing both the mean, minimum, and maximum recorded seed mass for the species.

Flower length max:

0.2 cm

Flower length min:

0.1 cm

Fruit length max:

0.5 cm

Fruit length mean:

0.4 cm

Fruit length min:

0.3 cm

Seed mass mean:

0.00177 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Tetracentron sinense 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 stem.

Stem

1. Chemistry & biodiversity

Chemicals

Tetracentron sinense has 3 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include (E)-3-(4-hydroxyphenyl)-N-[2-(4-hydroxyphenyl)ethyl]prop-2-enamide, Maslinic acid, Tetracentronsine.

(E)-3-(4-hydroxyphenyl)-N-[2-(4-hydroxyphenyl)ethyl]prop-2-enamide

1. Chemistry & biodiversity

Maslinic acid

1. Chemistry & biodiversity

Tetracentronsine

1. Chemistry & biodiversity

Preparations

Tetracentron sinense has 1 reported preparations identified across 1 scientific publications and several other databases. The most consistently reported preparations include stem bark.

Stem bark

1. Chemistry & biodiversity