Strychnos icaja

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Strychnos dundusanensis
• Strychnos mildbraedii
• Strychnos pusilliflora
• Strychnos kipapa
• Strychnos dewevrei
• Strychnos brachyura
• Strychnos venulosa

Sources: Wikidata

Taxonomical Classification

This plant belongs to the kingdom Plantae and the phylum Streptophyta, falling under the class Equisetopsida and subclass Magnoliidae. Within the order Gentianales, it is classified under the family Loganiaceae. Finally, it is identified by the genus Strychnos.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, Strychnos icaja, is found across several specific regions within West Tropical Africa. Its geographical range includes the nation of Benin, where it grows in local ecosystems. The species is also documented in Ghana, extending its presence through this part of the continent. Additionally, the plant can be located within the borders of Guinea and the Ivory Coast. Finally, its distribution continues further west into the territory of Liberia.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Strychnos icaja is fundamentally defined by its existence within the primary forest, where it thrives under the complex structural and biological conditions of undisturbed tropical ecosystems. As a component of these climax communities, the plant relies on the stable microclimates, high humidity, and nutrient-cycling processes characteristic of old-growth vegetation. Its presence in primary forests suggests a specialized niche that requires the specific light regimes, soil compositions, and symbiotic microbial networks found in mature, non-fragmented habitats. Within this dense forest architecture, Strychnos icaja participates in the intricate web of forest dynamics, interacting with diverse pollinators and seed dispersers that are also dependent on the integrity of the primary forest environment.

Habitat :

primary forest

Life history

The life history of Strychnos icaja is characterized by its classification as a phanerophyte, a growth form where the perennating buds are located high above the ground on woody stems or branches. Within the spectrum of plant life forms, it is specifically identified as a phanerophyte, reflecting its structural strategy of investing in permanent, elevated woody tissue to survive seasonal changes and environmental pressures. This life strategy allows the plant to maintain its photosynthetic organs and reproductive structures at a height that secures them from surface-level disturbances, facilitating its development within its natural habitat.

Life form :

phanerophyte

Morphology

The morphology of Strychnos icaja is characterized by its robust growth habit, functioning as a woody liana that can reach a significant plant height with a mean of approximately 35 m. As an obligatory climber, it relies on external structures for vertical support to navigate its environment, though it remains an independent organism rather than a parasite. The plant is terrestrial in its ecological placement, neither aquatic nor epiphytic, and exhibits a distinctly woody structure throughout its stem and vine-like development.

Aquatic :

terrestrial

Climber :

liana

Climber :

obligatory

Epiphyte :

terrestrial

Parasite :

independent

Plant height mean:

35 m

Woodiness :

woody

Physiology

The physiology of Strychnos icaja is characterized by complex metabolic pathways primarily focused on the biosynthesis of highly potent indole alkaloids, which serve as chemical defense mechanisms against herbivory. As a woody climber, its physiological processes are optimized for nutrient uptake and structural support within tropical forest ecosystems, utilizing specialized vascular tissues to transport water and solutes to its climbing tendrils. Regarding its interaction with soil nutrient cycles, the plant is not a nitrogen fixer; it lacks the symbiotic relationship with diazotrophic bacteria required to convert atmospheric nitrogen into usable forms, relying instead on the uptake of nitrates and ammonium from the organic matter in its immediate substrate. Its metabolic rate is closely tied to environmental humidity and light availability, which drive its photosynthetic efficiency and the subsequent secondary metabolite production that defines its chemical profile.

Nitrogen fixer :

no

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Strychnos icaja has 1 reported plant parts identified across 3 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include root.

Root

1. Journal of ethnopharmacology
2. Planta medica
3. Journal of natural products

Chemicals

Strychnos icaja has 6 reported phytochemicals identified across 3 scientific publications and several other databases. The most consistently reported chemicals include Flavonoids, Isostrychnine, MeOH, Sungucine, Terpenes.

Flavonoids

1. Journal of ethnopharmacology

Isostrychnine

1. Planta medica

MeOH

1. Journal of ethnopharmacology

Sungucine

1. Planta medica

Terpenes

1. Journal of ethnopharmacology

Vomicine

1. Planta medica

Activities

Strychnos icaja has 3 reported activities identified across 3 scientific publications and several other databases. The most consistently reported activities include Antimalarial, Cytotoxic, Antiplasmodial.

Antimalarial

1. Journal of ethnopharmacology
2. Planta medica

Cytotoxic

1. Journal of ethnopharmacology
2. Planta medica

Antiplasmodial

1. Journal of ethnopharmacology

Conditions

Strychnos icaja has 2 reported investigations on conditions identified across 3 scientific publications and several other databases. The most consistently reported conditions include Plasmodium falciparum, malaria.

Plasmodium falciparum

1. Planta medica
2. Journal of natural products

Malaria

1. Journal of ethnopharmacology

Preparations

Strychnos icaja has 1 reported preparations identified across 3 scientific publications and several other databases. The most consistently reported preparations include roots.

Roots

1. Journal of natural products