Searsia pyroides

Names and Synonyms

Scientific Names

Accepted name

Synonyms

• Toxicodendron pyroides

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta and the class Equisetopsida. Within the subclass Magnoliidae, it falls under the order Sapindales and the family Anacardiaceae. Finally, it is identified by its specific genus, Searsia.

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant exhibits a broad geographical distribution across several regions of the African continent. Within West-Central Tropical Africa, it can be found in Burundi, Cameroon, and Rwanda. Its presence also extends into the Democratic Republic of the Congo, which is another key part of the West-Central Tropical Africa region. Furthermore, the species reaches into Northeast Tropical Africa, specifically documented in Chad. This distribution pattern highlights the plant's ability to inhabit diverse tropical environments.

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Ecology

The ecology of Searsia pyroides is characterized by its broad adaptability across diverse topographical gradients, spanning an elevational range from a minimum of 50 m AMSL to a maximum of 2200 m AMSL. This wide altitudinal distribution allows the species to occupy various ecological niches, from lowland coastal or subtropical regions to high-altitude montane environments. Within these varying elevations, the plant thrives in diverse habitat types, often found in rocky outcrops, thickets, and woodland ecosystems where it can navigate shifting climatic conditions and soil compositions. Its ability to persist across such a significant vertical span suggests a robust physiological tolerance to the varying temperature regimes and moisture availability associated with different altitudinal zones.

Elevational range max:

2200 m AMSL

Elevational range min:

50 m AMSL

Life history

The life history of Searsia pyroides is characterized by its long-term survival strategy as a perennial organism, meaning it persists through multiple growing seasons rather than completing its life cycle in a single year. As a phanerophyte, the plant maintains its photosynthetic organs and meristematic tissues well above the soil surface, typically forming a woody structure that allows it to withstand various environmental pressures. Its growth habit falls under the classification of both phanerophyte and nanophanerophyte, indicating a structural life form where the buds are held on branches above the ground level, facilitating its establishment and continued development within its ecological niche.

Life form :

phanerophyte

Lifecycle :

perennial

Morphology

The morphology of Searsia pyroides is characterized by a woody growth form, typically manifesting as a shrub or small tree. This plant is a self-supporting, terrestrial species that functions as an independent organism, lacking both parasitic and epiphytic tendencies. In terms of stature, it exhibits significant variability in height, ranging from a minimum of 0.5 m to a maximum of 7 m, with an average plant height of approximately 7.5 m.

Aquatic :

terrestrial

Climber :

self-supporting

Epiphyte :

terrestrial

Growth form :

shrub

Parasite :

independent

Plant height max:

7 m

Plant height mean:

7.5 m

Plant height min:

0.5 m

Woodiness :

woody

Physiology

The physiology of Searsia pyroides is characterized by a C3 photosynthetic pathway, a common metabolic strategy among many woody dicotyledonous species that utilizes the Calvin cycle to fix atmospheric carbon dioxide. This pathway involves the initial carboxylation of ribulose-1,5-bisphosphate by the enzyme RuBisCO, which is typical for plants inhabiting temperate to subtropical environments where water loss through transpiration is balanced against carbon gain. Furthermore, the species does not function as a nitrogen fixer, meaning it lacks the symbiotic relationship with nitrogen-fixing bacteria, such as Rhizobium or Frankia, required to convert atmospheric nitrogen into bioavailable forms. Consequently, its nitrogen acquisition is primarily dependent on the uptake of nitrates or ammonium ions from the soil through its root system.

Nitrogen fixer :

no

Photosynthetic pathway :

C3

Reproduction

The reproduction of Searsia pyroides is characterized by specific biological mechanisms and seed traits that ensure its propagation within its habitat. The plant does not practice self-fertilization, as the trait is noted as absent, suggesting a reliance on cross-pollination to maintain genetic diversity. Its dispersal strategy is classified as zoochorous, specifically utilizing an endozoochorous syndrome, which means that seeds are dispersed through the internal passage of animals after being consumed. The seeds themselves are notably small and consistent in size, with a recorded seed mass of 0.00875 g, a value that serves as both the minimum, mean, and maximum mass for the species.

Dispersal syndrome :

zoochorous

Dispersal syndrome :

endozoochorous

Seed mass mean:

0.00875 g

Self fertilization :

absent

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Searsia pyroides 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 ethnopharmacology
2. Molecules (Basel, Switzerland)

Chemicals

Searsia pyroides has 3 reported phytochemicals identified across 2 scientific publications and several other databases. The most consistently reported chemicals include Agathisflavone, Amentoflavone, apigenin.

Agathisflavone

1. Journal of ethnopharmacology

Amentoflavone

1. Journal of ethnopharmacology

apigenin

1. Journal of ethnopharmacology

Activities

Searsia pyroides has 1 reported activities identified across 2 scientific publications and several other databases. The most consistently reported activities include Anticonvulsant.

Anticonvulsant

1. Journal of ethnopharmacology

Conditions

Searsia pyroides has 2 reported investigations on conditions identified across 2 scientific publications and several other databases. The most consistently reported conditions include convulsions, epilepsy.

Convulsions

1. Journal of ethnopharmacology

Epilepsy

1. Journal of ethnopharmacology

Preparations

Searsia pyroides has 6 reported preparations identified across 2 scientific publications and several other databases. The most consistently reported preparations include Ethanol leaf extracts, Extracts, crude ethanolic extracts, ethanol extract, ethanol extracts.

Ethanol leaf extracts

1. Journal of ethnopharmacology

Extracts

1. Journal of ethnopharmacology

Crude ethanolic extracts

1. Journal of ethnopharmacology

Ethanol extract

1. Journal of ethnopharmacology

Ethanol extracts

1. Journal of ethnopharmacology

Extracts

1. Journal of ethnopharmacology