Trigonostemon longifolius

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant, Trigonostemon longifolius, exhibits a specific geographical distribution across parts of Asia. Within China, it is primarily documented to grow in the Hainan province. Its presence extends significantly into the Indo-China region, where it can be found in Laos. Additionally, the species is distributed throughout Myanmar and Thailand. Finally, the plant's range includes the diverse landscapes of Vietnam.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Trigonostemon longifolius is characterized by its classification as a phanerophyte, a growth form where the perennating buds are located well above the ground on aerial shoots. Within this category, it specifically exhibits traits of both a phanerophyte and a nanophanerophyte, indicating that while it maintains woody or semi-woody structures to survive unfavorable seasons, its overall stature typically remains relatively low or shrub-like. This life strategy allows the plant to persist through environmental fluctuations by protecting its vital reproductive and vegetative buds on elevated branches, ensuring its long-term survival and ability to regenerate within its ecological niche.

Life form :

phanerophyte

Morphology

The morphology of Trigonostemon longifolius is characterized by a woody growth form, functioning as a self-supporting liana or vine. It exhibits a tree-like growth habit and reaches a significant stature, with a plant height ranging from a minimum of 2 m to a maximum of 4 m, maintaining an average height of approximately 3 m. As an independent organism, it does not exhibit parasitic behavior and grows as a terrestrial plant rather than an epiphyte.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

4 m

Plant height mean:

3 m

Plant height min:

2 m

Woodiness :

woody

Physiology

The physiological profile of Trigonosteamon longifolium is characterized by distinct morphological variations in its foliar structures, which play a critical role in its photosynthetic capacity and metabolic regulation. The leaf dimensions exhibit a significant range, with leaf lengths varying from a minimum of 9 cm to a maximum of 20 cm, maintaining a mean length of 14.5 cm. This longitudinal variation is complemented by specific width parameters, where the leaf width ranges from a minimum of 3.5 cm to a maximum of 5 cm. These dimensional attributes suggest a specialized surface area optimization that facilitates gas exchange and light interception, essential for the plant's energy production and overall physiological vigor.

Leaf length max:

20 cm

Leaf length mean:

14.5 cm

Leaf length min:

9 cm

Leaf width max:

5 cm

Leaf width min:

3.5 cm

Reproduction

The reproduction of Trigonostemon longifolius is characterized by its distinct flowering and fruiting structures. The plant produces inflorescences that vary in length, ranging from a minimum of 0.15 m to a maximum of 0.25 m. Following successful pollination, the development of the fruit occurs, which maintains a highly consistent dimension; the fruit width is measured at a mean of 1 cm, with both its minimum and maximum recorded widths also being 1 cm.

Fruit width max:

1 cm

Inflorescence length max:

0.25 m

Inflorescence length min:

0.15 m

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Trigonostemon longifolius has 2 reported plant parts identified across 4 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf, stem.

Leaf

1. Natural product research
2. Bioorganic chemistry

Stem

1. Natural product research
2. Bioorganic chemistry