Sapindus rarak

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Dittelasma rarak
• Sapindus rarak var. velutinus

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 Sapindales, it is classified under the family Sapindaceae. Finally, it is identified by the genus Sapindus.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse geographical distribution spanning several distinct regions across Asia and Africa. In the Indian Subcontinent, it can be found growing in the regions of Assam and Bangladesh. Furthermore, its range extends into the East Himalaya area within the same subcontinent. Moving toward Eastern Asia, the species is also documented in Taiwan. Finally, its reach continues into Northeast Tropical Africa, specifically within the country of Chad.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Sapindus rarak is characterized by its adaptation to diverse altitudinal gradients within its native habitats. This species thrives across a broad elevational range, demonstrating significant ecological plasticity in varying mountain and lowland environments. It can be found at lower reaches starting from a minimum elevation of 300 m AMSL, extending upward to a maximum elevation of 1700 m AMSL. On average, the plant is most commonly situated at a mean elevation of 1100 m AMSL, suggesting a preference for mid-altitude ecological zones where specific moisture and temperature regimes are maintained.

Elevational range max:

1700 m AMSL

Elevational range mean:

1100 m AMSL

Elevational range min:

300 m AMSL

Life history

The life history of Sapindus rarak is characterized by its status as a perennial species, allowing it to persist in its environment over many years rather than completing a single reproductive cycle. As it progresses through its various growth stages, the plant exhibits a deciduous nature, shedding its foliage periodically, which is often synchronized with seasonal changes or periods of environmental stress. This combination of a long-lived perennial lifecycle and a deciduous growth habit enables the plant to navigate seasonal fluctuations while maintaining its long-term structural presence in its natural habitat.

Deciduousness :

deciduous

Lifecycle :

perennial

Morphology

The morphology of Sapindus rarak is characterized by its robust growth form as a woody tree, capable of reaching a significant plant height with a mean of approximately 30 m. Although it exhibits characteristics associated with self-supporting climbers, such as liana or vine-like tendencies, it primarily functions as a self-supporting structure rather than an obligatory or facultative climber. As a terrestrial species, it grows directly from the ground rather than as an epiphyte, maintaining a sturdy, woody composition throughout its physical structure.

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Plant height mean:

30 m

Woodiness :

woody

Physiology

The physiology of Sapindus rarak is characterized by distinct structural and metabolic properties that influence its growth and environmental interactions. One of its key physical parameters is its stem specific density (SSD), which maintains an SSD_mean of 600 mg/cm³, indicating a moderate level of wood density that contributes to its structural integrity and biomass accumulation. In terms of nutrient cycling and symbiotic relationships, the plant does not function as a nitrogen fixer (Nitrogen_fix_1: no), meaning it relies on the uptake of available nitrogen from the soil through its root system rather than establishing symbiotic associations with nitrogen-fixing bacteria. This metabolic profile suggests that its physiological efficiency is closely tied to the quality of the substrate and its ability to manage internal resource allocation without the benefit of atmospheric nitrogen fixation.

Nitrogen fixer :

no

Stem specific density (SSD) mean:

600 mg/cm³

Reproduction

The reproduction of Sapindus rarak is characterized by a complex dispersal strategy that primarily follows a zoochorous syndrome, where animals play a critical role in the movement of its seeds. While the plant exhibits a range of potential mechanisms including anemochorous, autochorous, and hydrochorous tendencies, its primary evolutionary reliance is on biotic agents to facilitate seed distribution. This zoochorous method ensures that seeds are transported away from the parent plant, reducing seedling competition and promoting colonization in new habitats. The reproductive cycle involves the development of fleshy fruits that attract various fauna, serving as a specialized biological vector for seed dispersal across the landscape.

Dispersal syndrome :

zoochorous

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Sapindus rarak 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 seed.

Seed

1. Journal of ethnopharmacology

Chemicals

Sapindus rarak has 3 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Raraoside A, Rarasaponin II, Saponins.

Raraoside A

1. Phytochemistry

Rarasaponin II

1. Phytochemistry

Saponins

1. Phytochemistry

Activities

Sapindus rarak has 1 reported activities identified across 1 scientific publications and several other databases. The most consistently reported activities include Antioxidant.

Antioxidant

1. Natural product research

Medicinal Uses

Sapindus rarak has 1 reported medicinal uses identified across 1 scientific publications and several other databases. The most consistently reported uses include malaria.

Most Reported Uses

Preparations