Mitragyna rubrostipulata

Names and Synonyms

Scientific Names

Accepted name

Distribution

This plant exhibits a diverse distribution across several key regions of the African continent. In West-Central Tropical Africa, it can be found inhabiting the landscapes of Burundi, Rwanda, and the Democratic Republic of the Congo. Its range extends into Northeast Tropical Africa, specifically within the borders of Ethiopia. Additionally, the species is documented across East Tropical Africa in Kenya. Together, these locations highlight a broad presence spanning from central to eastern African territories.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Mitragyna rubrostipuata is characterized by its classification as a phanerophyte, a growth form where the majority of its photosynthetic organs are borne on elevated structures above the soil surface. Within this botanical framework, the species exhibits specific life form dynamics that align with both phanerophyte and nanophanerophyte categories, indicating a perennial life cycle where its regenerative buds are protected high above the ground from seasonal environmental stressors. This structural strategy allows the plant to establish a robust woody architecture, enabling it to compete for light within its ecological niche and maintain physiological activity across successive growing seasons.

Life form :

phanerophyte

Morphology

The morphology of Mitragyna rubrostipulata is characterized by its stature as a large, woody tree, reaching a significant height that typically averages 20 m, with a growth range spanning from a minimum of 20 m to a maximum of 35 m. As a self-supporting species, it does not function as a climber or a vine, nor does it exhibit liana-like qualities, maintaining a robust, independent structural form. The plant is strictly terrestrial in its habitat, neither possessing aquatic nor semiaquatic tendencies, and it functions as an independent organism rather than an obligatory or facultative parasite. Furthermore, it is a non-epiphytic species that remains grounded in the soil, establishing a stable and perennial presence through its woody constitution.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Parasite :

independent

Plant height max:

35 m

Plant height mean:

20 m

Woodiness :

woody

Physiology

The physiology of Mitragyna rubrostipulata is characterized by a metabolic framework driven by a C3 photosynthetic pathway, which dictates its carbon fixation processes and water-use efficiency. Through this C3 mechanism, the plant utilizes the enzyme Ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBisCO) to fix atmospheric carbon dioxide directly into three-carbon organic compounds during the Calvin cycle. This physiological approach implies that the plant's gas exchange and energy production are highly dependent on ambient light intensity and moisture availability, as the reliance on direct stomatal uptake makes it susceptible to photorespiration under high-temperature or drought-stressed conditions. The metabolic regulation of this species is centered on optimizing the balance between photosynthetic gain and transpirational water loss to maintain cellular homeostasis.

Photosynthetic pathway :

C3

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Mitragyna rubrostipulata 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 stem.

Stem

1. Tropical medicine and health