Pepper bark tree

Names and Synonyms

Common Names

• Pepper Bark Tree
• East African Green Wood
• Kenya Greenheart
• Muziga bark
• Pepper Root Tree
• Pepper-Bark
• Pepper-Leaf
• Pepper-Root
• Pepper-Root Tree
• Pepperbark
• Pepperbark-Tree
• Pepperleaf-Tree
• Pepperroot-Tree

Scientific Names

Accepted name

Synonyms

• Chibaca salutaris
• Warburgia breyeri

Regional and Traditional Names

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae within the phylum Streptophyta and the class Equisetopsida. It is further classified under the subclass Magnoliidae, the order Canellales, and the family Canellaceae. Finally, its specific taxonomic designation falls under the genus Warburgia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant is found across several distinct regions within the African continent. In South Tropical Africa, its range extends through the country of Mozambique. It is also distributed throughout Zimbabwe, which falls under the South Tropical Africa classification. Moving into Southern Africa, the species can be located in the KwaZulu-Natal province. Finally, it is documented within the Northern Provinces of Southern Africa.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Warburgia salutaris is characterized by its ability to inhabit diverse topographical gradients, occupying a broad altitudinal spectrum within its native habitats. This species thrives across a significant elevational range, establishing itself in environments starting from as low as 5 m AMSL and extending up to a maximum altitude of 1757 m AMSL. This wide vertical distribution allows the plant to persist in various microclimates, ranging from lowland coastal or riverine settings to more temperate montane forest ecosystems. Such ecological flexibility suggests an adaptation to varying temperature regimes and moisture availability found throughout these different elevations.

Elevational range max:

1757 m AMSL

Elevational range min:

5 m AMSL

Life history

The life history of Warburgia salutaris is characterized by its status as a perennial plant, allowing it to persist in its ecosystem over many years. As a phanerophyte, it maintains its stem tissue well above the ground, facilitating its growth into a significant woody structure. Despite its robust development, it can also be classified under the life form of nanophanerophyte depending on its specific growth stage and environmental context. Furthermore, the plant maintains an evergreen deciduousness, ensuring that its foliage remains functional throughout the year without the need for seasonal shedding.

Deciduousness :

evergreen

Life form :

nanophanerophyte

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Warburgia salutaris is characterized by its growth form, which primarily manifests as a woody tree or shrub. As a terrestrial plant, it is entirely independent, functioning as a non-parasitic and non-epiphytic organism. The species is self-supporting rather than a climber, maintaining a sturdy, upright structure. In terms of stature, its height varies significantly depending on environmental conditions, with minimum heights recorded at 2.5 m, an average height of approximately 8 m, and a maximum potential height reaching up to 10 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

tree

Growth form :

shrub

Parasite :

independent

Plant height max:

10 m

Plant height mean:

8 m

Plant height min:

2.5 m

Woodiness :

woody

Physiology

The physiology of Warburgia salutaris is characterized by a C3 photosynthetic pathway, a common mechanism in many woody forest species where carbon fixation occurs directly through the Calvin cycle without the specialized adaptations found in C4 or CAM plants. In terms of nutrient acquisition, the plant is not a nitrogen fixer, meaning it relies on the uptake of nitrates and ammonium from the soil through its root system rather than establishing symbiotic relationships with nitrogen-fixing bacteria to convert atmospheric nitrogen.

Nitrogen fixer :

yes

Photosynthetic pathway :

C3

Reproduction

Reproduction in Warburgia salutaris is characterized by specific seed morphological properties that play a critical role in its dispersal and establishment. The seeds produced by this species exhibit a notable range of variability in weight, which is a key factor in their reproductive success. The average seed mass is approximately 0.171333333 g, serving as a central metric for the species' seed production. However, individual seeds can vary significantly in size, with the smallest recorded seed mass being as low as 0.042 g, while the largest seeds can reach a maximum mass of 0.252 g. This variation in seed mass suggests a diverse reproductive strategy that may influence how seeds interact with their environment during germination.

Seed mass max:

0.252 g

Seed mass mean:

0.171333333 g

Seed mass min:

0.042 g

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Warburgia salutaris has 2 reported plant parts identified across 4 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf, stem.

Leaf

1. BMC complementary and alternative medicine
2. International journal of molecular sciences

Stem

1. Journal of ethnopharmacology
2. Biomolecules

Chemicals

Warburgia salutaris has 14 reported phytochemicals identified across 4 scientific publications and several other databases. The most consistently reported chemicals include CATECHIN, IL-6, INTERLEUKIN 1BETA, Mukaadial, Muzigadial.

CATECHIN

1. Journal of ethnopharmacology

IL-6

1. Journal of ethnopharmacology

INTERLEUKIN 1BETA

1. Human & experimental toxicology

Mukaadial

1. Journal of ethnopharmacology

Muzigadial

1. Journal of ethnopharmacology

Pereniporin B

1. Journal of ethnopharmacology

Sesquiterpenoid

1. Journal of ethnopharmacology

Tumor necrosis factor-alpha

1. Human & experimental toxicology

Ursolic acid

1. Journal of molecular modeling

Ursolic acid acetate

1. Journal of molecular modeling

Activities

Warburgia salutaris has 10 reported activities identified across 4 scientific publications and several other databases. The most consistently reported activities include Antibacterial, Antimalarial, Cytotoxic, Anticancer, Antidiabetic.

Antibacterial

1. BMC complementary and alternative medicine
2. Heliyon

Antimalarial

1. Journal of ethnopharmacology
2. Biomolecules

Cytotoxic

1. Journal of ethnopharmacology
2. BMC complementary and alternative medicine

Anticancer

1. International journal of molecular sciences

Antidiabetic

1. Biomolecules

Antimicrobial

1. Journal of ethnopharmacology

Antioxidant

1. Journal of ethnopharmacology

Bacteriostatic

1. BMC complementary and alternative medicine

Diuretic

1. Journal of ethnopharmacology

Expectorant

1. Journal of ethnopharmacology

Conditions

Warburgia salutaris has 20 reported investigations on conditions identified across 4 scientific publications and several other databases. The most consistently reported conditions include cancer, inflammation, Diabetes mellitus, Mycobacterium tuberculosis H37Rv, Plasmodium falciparum.

Cancer

1. BMC complementary and alternative medicine
2. International journal of molecular sciences

Inflammation

1. Inflammopharmacology
2. Journal of ethnopharmacology

Diabetes mellitus

1. Natural product communications

Mycobacterium tuberculosis h37rv

1. Bioorganic & medicinal chemistry

Plasmodium falciparum

1. Scientific reports

Staphylococcus aureus

1. BMC complementary and alternative medicine

Anaplasmosis

1. Journal of ethnopharmacology

Breast cancer

1. International journal of molecular sciences

Coughs

1. Journal of ethnopharmacology

Lipid peroxidation

1. Human & experimental toxicology

Preparations

Warburgia salutaris has 15 reported preparations identified across 4 scientific publications and several other databases. The most consistently reported preparations include methanol extracts, bark, ethanol extracts, extracts, Iso-mukaadial acetate.

Methanol extracts

1. Skin pharmacology and physiology
2. Journal of ethnopharmacology
3. Human & experimental toxicology

Bark

1. Journal of ethnopharmacology
2. Inflammopharmacology

Ethanol extracts

1. Journal of helminthology
2. Tropical animal health and production

Extracts

1. Journal of ethnopharmacology
2. Bioorganic & medicinal chemistry

Iso-mukaadial acetate

1. Scientific reports

A purified compound

1. Bioorganic & medicinal chemistry

Aqueous

1. Heliyon

Aqueous extracts

1. Skin pharmacology and physiology

Dichloromethane extracts

1. Journal of helminthology

Ethyl acetate extract of the stem bark

1. Journal of ethnopharmacology