White Siris

Names and Synonyms

Common Names

• White Siris

Scientific Names

Accepted name

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae, it is ordered under Sapindales and placed in the family Simaroubaceae. Finally, it is categorized under the genus Ailanthus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a wide geographical range across several distinct Asian regions. In China, it is primarily located within the Southeast portion of the country. Its presence in the Indian Subcontinent is noted specifically in Assam and the East Himalaya regions. Moving into Indo-China, the species can be found growing in Vietnam. Finally, its distribution extends into Malesia, where it is documented on the island of Borneo.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Ailanthus integrifolia is characterized by its adaptation to specific altitudinal zones, typically flourishing within an elevational range of 400 m to 700 m AMSL. Within this vertical niche, the species thrives in diverse forest environments, often occupying moist deciduous forests and subtropical hilly terrains. It plays a significant role in its local ecosystem by colonizing various soil types, where it contributes to the structural complexity of the forest canopy. The plant's distribution is closely tied to these specific mid-elevation belts, where the climatic conditions and moisture availability support its growth patterns and reproductive cycles.

Elevational range max:

700 m AMSL

Elevational range min:

400 m AMSL

Life history

The life history of Ailanthus integrifolia is characterized by its status as a perennial plant, allowing it to maintain a long-term presence within its ecosystem. Throughout its lifespan, it exhibits an evergreen growth habit, retaining its foliage to support continuous physiological processes and resilience across varying seasonal conditions.

Deciduousness :

evergreen

Lifecycle :

perennial

Morphology

The morphology of Ailanthus integrifolia is characterized by a robust growth form, specifically categorized as a tree. It is a woody plant that exhibits a self-supporting habit, rather than functioning as a climber, liana, or vine. As a terrestrial species, it does not exhibit epiphytic behavior. In terms of stature, the plant can reach significant dimensions, with a recorded maximum height of 24 m and a mean plant height of approximately 40 m.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Plant height max:

24 m

Plant height mean:

40 m

Woodiness :

woody

Physiology

The physiology of Ailanthus integrifolia is characterized by a metabolic framework consistent with many woody dicotyledonous trees. The plant utilizes the C3 photosynthetic pathway, a process where carbon dioxide is fixed directly through the Calvin cycle without the specialized adaptations seen in C4 or CAM species, making it optimized for environments where moisture and temperature are relatively stable. Regarding its nutrient acquisition and symbiotic capabilities, the species is not a nitrogen fixer; it lacks the specialized root nodules required to host diazotrophic bacteria for atmospheric nitrogen fixation, relying instead on the uptake of nitrates and ammonium from the soil through its root system.

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Reproduction

The reproduction of Ailanthus integrifolia is characterized by specific seed morphological and dispersal traits that facilitate its propagation. The plant produces seeds with a highly consistent mass, recorded at a mean, maximum, and minimum value of 0.55556 g, indicating a uniform seed size across its reproductive output. In terms of its dispersal strategy, the species exhibits an anemochorous syndrome, meaning its seeds are primarily adapted for dispersal by wind, which allows them to be carried away from the parent plant to colonize new areas.

Dispersal syndrome :

anemochorous

Seed mass mean:

0.55556 g

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Ailanthus integrifolia has 19 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include 2,6-Dimethoxybenzoquinone, 2-(1-Hydroxyethyl)-6-methoxynaphtho[2,3-b]furan-4,9-dione, 2-(1-hydroxyethyl)naphtho[2,3-b]furan-4,9-dione, 2-acetyl-6-methoxynaphtho[2,3-b]furan-4,9-dione, 2-acetylnaphtho[2,3-b]furan-4,9-dione.

2,6-Dimethoxybenzoquinone

1. Chemical & pharmaceutical bulletin

2-(1-Hydroxyethyl)-6-methoxynaphtho[2,3-b]furan-4,9-dione

1. Chemical & pharmaceutical bulletin

2-(1-hydroxyethyl)naphtho[2,3-b]furan-4,9-dione

1. Chemical & pharmaceutical bulletin

2-acetyl-6-methoxynaphtho[2,3-b]furan-4,9-dione

1. Chemical & pharmaceutical bulletin

2-acetylnaphtho[2,3-b]furan-4,9-dione

1. Chemical & pharmaceutical bulletin

3,4,5-Trimethoxyphenol

1. Chemical & pharmaceutical bulletin

Coniferyl aldehyde

1. Chemical & pharmaceutical bulletin

Jioglutin C

1. Chemical & pharmaceutical bulletin

Koaburaside

1. Chemical & pharmaceutical bulletin

Neoeriocitrin

1. Chemical & pharmaceutical bulletin