Forest Knobwood

Zanthoxylum davyi · Accepted scientific name

Scientific literature: Very Sparse (4 studies) · ★☆☆☆☆

Forest Knobwood, scientifically known as Zanthoxylum davyi, is a remarkable medicinal plant native to specific tropical regions. Renowned for its potent bioactive compounds, it is traditionally utilized in various folk remedies to treat ailments ranging from digestive issues to inflammatory conditions, offering significant potential for modern pharmacological research and development.

Family
Rutaceae
Native range
Africa
Parts used
Not available
Common names
Forest Knobwood
Scientific synonyms
Fagara Davyi · Zanthoxylum Thunbergii Var. Grandifolium

Names and Synonyms

Common Names

Scientific Names

Accepted name

Zanthoxylum davyi

Synonyms

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 Rutaceae. Finally, it is categorized under the genus Zanthoxylum as the species Zanthoxylum davyi.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Sapindales
Family Rutaceae
Genus Zanthoxylum

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a diverse presence across several regions within the southern portion of the continent. In South Tropical Africa, its distribution can be specifically noted within Zimbabwe. Moving into the broader Southern Africa region, it is found throughout the Cape Provinces. The species is also documented in the KwaZulu-Natal area of Southern Africa. Finally, its range extends to the Northern Provinces and the nation of Eswatini.

Region Area
South Tropical Africa Zimbabwe
Southern Africa Cape Provinces
Southern Africa KwaZulu-Natal
Southern Africa Eswatini
Southern Africa Northern Provinces

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Zanthoxylum davyi is defined by its significant adaptability to varied altitudinal gradients, allowing it to occupy a wide range of montane and sub-montane habitats. This species exhibits a broad vertical distribution, thriving in diverse environmental conditions from low-lying areas at a minimum elevation of 160 m AMSL to higher mountainous terrains reaching a maximum elevation of 1900 m AMSL. This extensive elevational range suggests that the plant is capable of tolerating fluctuating temperature regimes and varying levels of atmospheric pressure associated with different mountain strata. Such ecological plasticity enables it to colonize diverse microclimates, facilitating its presence across a spectrum of forest types and topographical features within its natural range.

Elevational range max:
1900 m AMSL
Elevational range min:
160 m AMSL

Life history

The life history of Zanthoxylum davyi is characterized by its nature as a perennial organism, meaning it persists through multiple growing seasons rather than completing its cycle within a single year. As a long-lived woody species, it undergoes a continuous cycle of seasonal development, establishing a robust structural foundation that allows it to endure environmental fluctuations over many years. Its developmental trajectory involves an initial establishment phase followed by sustained vegetative growth and periodic reproductive cycles, typical of perennial woody plants that invest significant energy into long-term survival and structural complexity.

Lifecycle :
perennial

Morphology

The morphology of Zanthoxylum davyi is characterized by its growth form as a woody tree. As a terrestrial and independent species, it does not function as a parasite or an epiphyte, maintaining a self-supporting structure rather than growing as a liana or vine. The plant reaches significant dimensions, with a height ranging from a minimum of 8 meters to a maximum of 30 meters, maintaining an average plant height of approximately 20 meters.

Aquatic :
terrestrial
Climber :
self-supporting
Epiphyte :
terrestrial
Growth form :
tree
Parasite :
independent
Plant height max:
30 m
Plant height mean:
20 m
Plant height min:
8 m
Woodiness :
woody

Physiology

The physiology of Zanthoxylum davyi is characterized by a C3 photosynthetic pathway, a common metabolic strategy among woody perennials that involves the direct fixation of carbon dioxide through the Calvin cycle. As a plant utilizing this pathway, it relies on the enzyme RuBisCO to initiate carbon assimilation, which typically occurs under moderate environmental conditions. Furthermore, the species does not function as a nitrogen fixer, meaning it lacks the symbiotic relationship with nitrogen-fixing bacteria required to convert atmospheric nitrogen into usable forms and must instead depend on the uptake of nitrates or ammonium present in the soil substrate.

Nitrogen fixer :
no
Photosynthetic pathway :
C3

Reproduction

The reproduction of Zanthoxylum davyi is driven by biotic pollination syndromes, indicating a reliance on living organisms to facilitate the transfer of pollen. Specifically, the plant utilizes insect pollination as its primary mechanism, involving various insect vectors to ensure successful fertilization. Furthermore, the reproductive process is characterized by the absence of self-fertilization, meaning the plant requires cross-pollination between different individuals to achieve successful seed production and maintain genetic diversity.

Pollination syndrome :
insect
Pollination syndrome :
biotic
Self fertilization :
absent

Sources: Global Inventory of Floras and Traits (GIFT)

Chemicals

Zanthoxylum davyi has 1 reported phytochemicals identified across 0 scientific publications and several other databases. The most consistently reported chemicals include TAT.

Chemicals reported in Zanthoxylum davyi
Chemical Supporting sources Consensus
TAT 1 supporting sources ★☆☆☆☆

TAT

  1. Journal of ethnopharmacology

Conditions

Zanthoxylum davyi has 2 reported investigations on conditions identified across 0 scientific publications and several other databases. The most consistently reported conditions include NF-kappaB, neurological disorders.

Conditions investigated for Zanthoxylum davyi
Condition Supporting sources Consensus
Nf-kappab 1 supporting sources ★☆☆☆☆
Neurological disorders 1 supporting sources ★☆☆☆☆

Nf-kappab

  1. Journal of ethnopharmacology

Neurological disorders

  1. Asian Pacific journal of tropical medicine

Preparations

Zanthoxylum davyi has 3 reported preparations identified across 0 scientific publications and several other databases. The most consistently reported preparations include Crude methanol and water extracts, acetone extract, chloroform extract.

Preparations reported for Zanthoxylum davyi
Preparation Supporting sources Consensus
Crude methanol and water extracts 1 supporting sources ★☆☆☆☆
Acetone extract 1 supporting sources ★☆☆☆☆
Chloroform extract 1 supporting sources ★☆☆☆☆

Crude methanol and water extracts

  1. Fitoterapia

Acetone extract

  1. Journal of ethnopharmacology

Chloroform extract

  1. Journal of ethnopharmacology