kaayam

Names and Synonyms

Common Names

• kaayam

Scientific Names

Accepted name

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Myrtales, it is classified under the family Melastomataceae. Its specific taxonomic placement is defined by the genus Memecylon, specifically the species Memecylon edule.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse geographical distribution across several key regions in Asia. Within the Indian Subcontinent, it can be found growing in Bangladesh, India, and Sri Lanka. Its range also extends into the Indo-China region, where it is present in Cambodia. Additionally, the species is documented inhabiting the Andaman Islands. Together, these locations highlight the wide ecological footprint of Memecylon eduled across South and Southeast Asia.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Memecylon edule is characterized by its long-lived nature, as it is classified as a perennial species. In terms of its structural growth and survival strategy, the plant exhibits a dual classification of life forms depending on its developmental stage and environmental interaction; it functions as a phanerophyte, maintaining its buds well above the ground on woody stems, while also displaying characteristics of a nanophanerophyte.

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Memecylon edule is characterized by a woody growth form, primarily manifesting as a tree. This plant exhibits a substantial stature, with an average plant height of approximately 15 m and the potential to reach a maximum height of 18 m. Although it possesses characteristics associated with climbing habits, such as being a self-supporting liana or vine, its structural development is fundamentally that of a self-supporting woody organism. Furthermore, it is categorized as a terrestrial species rather than an epiphyte, maintaining its growth pattern within the soil substrate.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Plant height max:

18 m

Plant height mean:

15 m

Woodiness :

woody

Physiology

The physiology of Memecylon edule is characterized by its specialized metabolic adaptations to nutrient-poor, acidic soils, particularly within the heathland ecosystems it inhabits. A critical aspect of its physiological profile is its interaction with soil nutrients; specifically, regarding its capacity for symbiotic nitrogen enrichment, this plant is not a nitrogen fixer. Unlike many members of the Fabaceae family that engage in symbiotic relationships with rhizobia to convert atmospheric nitrogen, Memecylon edule relies on the uptake of available soil nitrates and ammonium. To compensate for the limited nutrient availability in its typical habitat, the plant exhibits physiological strategies focused on high nutrient-use efficiency and the development of specialized root systems designed to maximize the absorption of minerals and water from leached, sandy substrates. Its metabolic processes are closely tied to its ability to manage acidity and potential metal toxicity in the soil, maintaining homeostasis through controlled ion uptake and cellular regulation.

Nitrogen fixer :

no

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Memecylon edule has 1 reported plant parts identified across 2 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf.

Leaf

1. Journal of photochemistry and photobiology. B, Biology
2. Pharmacognosy research

Chemicals

Memecylon edule has 5 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include Acid phosphatase, Alcohol dehydrogenase, Alkaline phosphatase, Esterase, Peroxidase.

Acid phosphatase

1. Pharmacognosy research

Alcohol dehydrogenase

1. Pharmacognosy research

Alkaline phosphatase

1. Pharmacognosy research

Esterase

1. Pharmacognosy research

Peroxidase

1. Pharmacognosy research

Conditions

Memecylon edule has 2 reported investigations on conditions identified across 2 scientific publications and several other databases. The most consistently reported conditions include burns, wound.

Burns

1. Biomaterials

Wound

1. Biomaterials

Preparations

Memecylon edule has 1 reported preparations identified across 2 scientific publications and several other databases. The most consistently reported preparations include crude enzyme extract.

Crude enzyme extract

1. Pharmacognosy research