Toona sureni

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a broad geographical distribution across several key regions in Asia. Within China, it can be found specifically in the South-Central areas as well as on Hainan island. Its presence extends into the Indian Subcontinent, where it is documented in the state of Assam. Additionally, the species is known to grow within the borders of Bangladesh. Finally, its range reaches the mountainous terrains of the East Himalaya.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Toona sureni is closely tied to its specific altitudinal preferences within montane forest ecosystems. This species thrives within a distinct elevational range, typically occurring between a minimum of 1200 m AMSL and a maximum of 1900 m AMSL. This vertical distribution suggests an adaptation to the specific climatic conditions, temperature gradients, and moisture regimes found in mid-to-high altitude subtropical or temperate zones. By occupying this specific niche, the plant is integrated into specialized forest structures where the environmental variables of these elevations support its growth and reproductive requirements.

Elevational range max:

1900 m AMSL

Elevational range min:

1200 m AMSL

Life history

The life history of Tecoma stans (often referred to in specific regional contexts as Toona sureni) is characterized by its nature as a perennial plant, allowing it to persist through multiple growing seasons. As a phanerophyte, its buds are elevated well above the ground level on woody stems, which facilitates its structural development and survival in various environments. This species exhibits a deciduous nature, shedding its foliage periodically as part of its seasonal physiological cycle. Its growth strategy is further classified under the phanerophyte life form, ensuring that its reproductive and vegetative structures remain protected above the soil surface throughout its long-lived existence.

Deciduousness :

deciduous

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Toona sureni is characterized by its robust growth form, specifically as a large, woody tree. It is a terrestrial species that functions as an independent organism, meaning it does not exhibit parasitic or epiphytic behavior. In terms of stature, the plant reaches significant heights, with a mean height of approximately 35 m and a maximum height that can reach up to 30 m. Structurally, the plant is self-supporting rather than acting as a climber, liana, or vine, maintaining a stable, upright woody architecture.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

30 m

Plant height mean:

35 m

Woodiness :

woody

Physiology

The physiology of Tecomella undulata (syn. Toona sureni) is characterized by a C3 photosynthetic pathway, which dictates its carbon fixation processes and metabolic efficiency under varying environmental conditions. The structural integrity and mechanical properties of its woody tissues are reflected in a stem specific density (SSD) with a mean value of 477 mg/cm³, indicating a dense and robust biomass composition. Furthermore, regarding its nutrient cycling and symbiotic relationships, the plant is not a nitrogen fixer, meaning it relies on soil nitrogen availability rather than atmospheric nitrogen fixation through symbiotic bacteria.

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Stem specific density (SSD) mean:

477 mg/cm³

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Toona sureni 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. Virology journal

Conditions

Toona sureni has 1 reported investigations on conditions identified across 1 scientific publications and several other databases. The most consistently reported conditions include hepatitis C virus.

Hepatitis c virus

1. Virology journal