Diospyros siamang

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant is primarily distributed across the diverse tropical regions of Malesia. Within this vast area, it can be found growing on the island of Borneo. Its range also extends to the Malay Peninsula, commonly referred to as Malaya. Additionally, the species is native to the lush landscapes of Sumatera. Consequently, its presence is concentrated within these specific Southeast Asian territories.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Diospyros siamang is characterized by its classification as a phanerophyte, specifically exhibiting life form traits categorized as both phanerophyte and nanophanerophyte. As a phanerophyte, the plant maintains its photosynthetic organs on elevated branches well above the ground level, ensuring its survival through seasonal environmental shifts by protecting its meristems. Its development follows a perennial cycle where it establishes a robust woody structure, transitioning through various growth stages typical of large forest trees. The presence of nanophanerophytic characteristics within its life form profile suggests a structural variation where certain parts or related growth stages may maintain a more compact, shrub-like stature compared to the primary canopy-reaching limbs. This life strategy allows the species to dominate its ecological niche, utilizing its elevated vegetative parts to maximize light interception and resource acquisition throughout its long life cycle.

Life form :

phanerophyte

Morphology

The morphology of Diospyros siamang is characterized by a robust, woody growth form, primarily manifesting as a tree. It functions as an independent organism, lacking any parasitic tendencies, and maintains a terrestrial habit rather than an epiphytic one. While it can exhibit climbing tendencies, it is categorized as a self-supporting liana or vine, possessing the structural integrity to stand without mandatory external support. This substantial plant can reach a significant maximum height of approximately 47 meters.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

47 m

Woodiness :

woody

Physiology

The physiology of Diospyros siamang is characterized by a metabolic framework governed by the C3 photosynthetic pathway, a trait shared by most woody dicotyledonous species. Within this pathway, carbon fixation is initiated by the enzyme RuBisCO, which reacts atmospheric carbon dioxide with ribulose-1,5-bisphosphate to produce 3-phosphoglycerate. Because it utilizes the C3 mechanism rather than C4 or CAM pathways, the plant's physiological efficiency is highly dependent on environmental conditions such as light intensity, temperature, and water availability, as the process is susceptible to photorespiration when stomatal conductance decreases. The plant's internal gas exchange and water relations are tightly coupled to this metabolic process, necessitating a balance between CO2 uptake for carbohydrate synthesis and the prevention of excessive transpiration through its leaf tissues.

Photosynthetic pathway :

C3

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Diospyros siamang has 2 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include Betulin, betulinic acid.

Betulin

1. Dr. Duke

betulinic acid

1. Dr. Duke

Activities

Diospyros siamang has 23 reported activities identified across 0 scientific publications and several other databases. The most consistently reported activities include Anthelmintic, AntiHIV, Antibacterial, Anticancer, Anticarcinomic.

Anthelmintic

1. Dr. Duke

AntiHIV

1. Dr. Duke

Antibacterial

1. Dr. Duke

Anticancer

1. Dr. Duke

Anticarcinomic

1. Dr. Duke

Antiedemic

1. Dr. Duke

Antifeedant

1. Dr. Duke

Antiflu

1. Dr. Duke

Antiinflammatory

1. Dr. Duke

Antileukemic

1. Dr. Duke