Zanthoxylum myriacanthum

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a widespread presence across several key regions in Asia. In China, it can be found growing throughout the South-Central, Southeast, and Hainan areas. Its distribution also extends into the Indian Subcontinent, specifically within the state of Assam. Furthermore, the species is recorded in the East Himalaya region. Together, these locations define the diverse geographical range of Zanthoxylum myrianthum.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Zanthoxylum myrianthum is characterized by its specific preference for montane environments, where it thrives within a distinct vertical distribution. This species is typically found across an elevational gradient that begins at 600 m AMSL and extends up to a maximum of 1500 m AMSL. By occupying this specific altitudinal niche, the plant adapts to the varying temperature regimes and moisture levels inherent to mid-to-high altitude ecosystems, positioning itself within specialized forest strata that support its physiological requirements.

Elevational range max:

1500 m AMSL

Elevational range min:

600 m AMSL

Life history

The life history of Zanthoxylum myrianthum is characterized by its status as a perennial species, ensuring its long-term presence within its ecological niche. As a phanerophyte, the plant maintains its photosynthetic organs on elevated stems, a structural strategy that classifies it under both phanerophyte life form designations. Furthermore, the species exhibits an evergreen deciduousness pattern, retaining its foliage throughout the year to facilitate continuous metabolic processes.

Deciduousness :

evergreen

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Xanthoxylum myrianthum is characterized by a robust woody growth form, specifically categorized as a tree. It is a terrestrial plant that exhibits a significant vertical presence, with an average plant height of approximately 20 m and the potential to reach a maximum height of 25 m. While certain growth habits in similar taxa can involve climbing mechanisms, this species is described as a self-supporting organism rather than an obligatory or facultative liana or vine. Its structural integrity is defined by its woody nature, providing the necessary stability for its substantial stature within its natural habitat.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Plant height max:

25 m

Plant height mean:

20 m

Woodiness :

woody

Physiology

The physiology of Zanthoxylum myrianthum is characterized by a C3 photosynthetic pathway, a standard metabolic process for most woody dicotyledonous plants where carbon fixation occurs via the enzyme RuBisCO during the Calvin cycle. This metabolic strategy dictates its water-use efficiency and carbon assimilation rates relative to environmental humidity and light intensity. Furthermore, the plant does not function as a nitrogen fixer, meaning it lacks the symbiotic relationship with diazotrophic bacteria (such as Rhizobium) required to convert atmospheric nitrogen into bioavailable forms, necessitating a reliance on soil-based nitrogen uptake through its root system.

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Reproduction

The reproduction of Zanthoxylum myrianthum is driven by a biotic pollination syndrome, relying on living organisms rather than abiotic factors to facilitate the transfer of pollen. This process is primarily mediated by insects, which serve as the key vectors for fertilization. Within this ecological framework, the plant exhibits a lack of self-fertilization, meaning that the absence of selfing necessitates cross-pollination to ensure genetic diversity and successful seed production. The pollination mechanism is characterized by its reliance on various insect types to navigate the reproductive structures, ensuring that the biological requirements for successful fertilization are met through these biotic interactions.

Pollination syndrome :

insect

Pollination syndrome :

biotic

Self fertilization :

absent

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Zanthoxylum myriacanthum 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. Molecules (Basel, Switzerland)