alstonia

Alstonia boonei · Accepted scientific name

Scientific literature: Moderate (102 studies) · ★★★☆☆

Alstonia, scientifically known as Alstonia boonei, is a significant medicinal tree native to tropical Africa. Renowned for its diverse pharmacological properties, various parts of the plant are traditionally used to treat malaria, fever, and inflammation. It serves as a vital resource in ethnobotanical practices for managing various ailments.

Family
Apocynaceae
Native range
Africa
Parts used
Stem · Leaf
Common names
Alstonia · Cheesewood · 3 more
Scientific synonyms
Not available

Names and Synonyms

Common Names

Scientific Names

Accepted name

Alstonia boonei

Regional and Traditional Names

French:

  • Ekouk
  • Emien

Sources: Wikidata, Catalogue of Life

Taxonomical Classification

This plant belongs to the kingdom Plantae and is classified under the phylum Streptophyta within the class Equisetopsida. It falls under the subclass Magnoliidae and the order Gentianaales, specifically residing in the family Apocynaceae. Its taxonomic identity is completed by its classification within the genus Alstona.

Rank Classification
Kingdom Plantae
Phylum Streptophyta
Class Equisetopsida
Subclass Magnoliidae
Order Gentianales
Family Apocynaceae
Genus Alstonia

Sources: The World Checklist of Vascular Plants (WCVP)

Distribution

This plant, known as Alstonia boonei, exhibits a specific distribution pattern throughout the West Tropical African region. Its presence is documented across several coastal and inland nations within this diverse ecological zone. Specifically, the species can be found growing in the territories of Benin and Gambia. Furthermore, its geographical range extends into the countries of Ghana and Guinea-Bissau. The distribution is completed by its documented occurrence within the nation of Guinea.

Region Area
West Tropical Africa Benin
West Tropical Africa Gambia
West Tropical Africa Ghana
West Tropical Africa Guinea-Bissau
West Tropical Africa Guinea
West Tropical Africa Ivory Coast
West Tropical Africa Liberia
West Tropical Africa Nigeria
West Tropical Africa Senegal
West Tropical Africa Sierra Leone

Sources: The World Checklist of Vascular Plants (WCVP)

Botanical Identification

Life history

The life history of Alstonia boonei is characterized by its status as a perennial plant, ensuring its long-term presence within its ecological niche. As a phanerophyte, it maintains its photosynthetic organs on elevated woody stems, a life form that allows it to compete effectively for sunlight in forested environments. This species exhibits a deciduous nature, undergoing seasonal leaf shedding which plays a crucial role in its physiological adaptation to environmental cycles.

Deciduousness :
deciduous
Life form :
phanerophyte
Lifecycle :
perennial

Morphology

The morphology of Alstonia boonei is characterized by its robust growth form, specifically classified as a tree. This woody species exhibits significant vertical development, with a plant height that ranges from a minimum of approximately 9.14 meters to a maximum of 36.58 meters, maintaining an average height of around 30 meters. As a terrestrial organism, it is neither aquatic nor an epiphyte, functioning as an independent plant rather than a parasite. In terms of its structural habit, the plant is self-supporting and does not function as a liana or vine, maintaining a sturdy, woody stature throughout its development.

Aquatic :
terrestrial
Climber :
self-supporting
Epiphyte :
terrestrial
Growth form :
tree
Parasite :
independent
Plant height max:
36.57644477 m
Plant height mean:
30 m
Plant height min:
9.144111192 m
Woodiness :
woody

Physiology

The physiology of Alstonia boonii is characterized by a C3 photosynthetic pathway, meaning it utilizes the Calvin cycle to fix carbon dioxide through the enzyme RuBisCO, a process typical of many woody dicotyledonous plants found in tropical environments. In terms of nutrient acquisition and symbiotic relationships, the plant is not a nitrogen fixer, lacking the specialized root nodules or symbiotic associations with diazotrophic bacteria required to convert atmospheric nitrogen into usable forms.

Nitrogen fixer :
no
Photosynthetic pathway :
C3

Reproduction

The reproduction of Alstonia boonii is characterized by a highly flexible phenology and complex biological interactions. The flowering period is highly variable, with the potential to bloom across all months of the year, from January through December. This reproductive cycle relies on biotic pollination syndromes, specifically involving insects. Within this biotic framework, bees play a significant role in the pollination process, facilitating the transfer of pollen between flowers. Once fertilization is successful and seeds are developed, the plant utilizes an anemochorous dispersal syndrome, meaning the seeds are primarily dispersed by the action of the wind to colonize new areas.

Dispersal syndrome :
anemochorous
Flowering time :
variable
Pollination syndrome :
insect
Pollination syndrome :
bee
Pollination syndrome :
biotic

Sources: Global Inventory of Floras and Traits (GIFT)

Plant Parts

Alstonia boonei has 3 reported plant parts identified across 10 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include stem, leaf, root.

Plant parts reported in Alstonia boonei
Plant part Supporting sources Consensus
Stem 6 supporting sources ★★★☆☆
Leaf 3 supporting sources ★★☆☆☆
Root 1 supporting sources ★☆☆☆☆

Stem

  1. Antioxidants (Basel, Switzerland)
  2. African health sciences
  3. Molecules (Basel, Switzerland)
  4. Journal of ethnopharmacology
  5. BMC complementary medicine and therapies
View 1 additional sources
  1. Journal of inflammation research

Leaf

  1. Journal of ethnopharmacology
  2. African journal of medicine and medical sciences
  3. Antioxidants (Basel, Switzerland)

Root

  1. Journal of ethnopharmacology

Chemicals

Alstonia boonei has 23 reported phytochemicals identified across 10 scientific publications and several other databases. The most consistently reported chemicals include Boonein, Saponins, 10-Hydroxyyohimbine, 15-hydroxyangustilobine A, CHLOROGENIC ACID.

Chemicals reported in Alstonia boonei
Chemical Supporting sources Consensus
Boonein 2 supporting sources ★☆☆☆☆
Saponins 2 supporting sources ★☆☆☆☆
10-Hydroxyyohimbine 1 supporting sources ★☆☆☆☆
15-hydroxyangustilobine A 1 supporting sources ★☆☆☆☆
CHLOROGENIC ACID 1 supporting sources ★☆☆☆☆
ETHYL ACETATE 1 supporting sources ★☆☆☆☆
Echitamidine 1 supporting sources ★☆☆☆☆
Estradiol-17-phenylpropionate 1 supporting sources ★☆☆☆☆
Flavonoids 1 supporting sources ★☆☆☆☆
Glycosides 1 supporting sources ★☆☆☆☆

Boonein

  1. ISRN pharmacology
  2. Molecules (Basel, Switzerland)

Saponins

  1. Current topics in medicinal chemistry
  2. BMC complementary and alternative medicine

10-Hydroxyyohimbine

  1. BMC complementary medicine and therapies

15-hydroxyangustilobine A

  1. Journal of ethnopharmacology

CHLOROGENIC ACID

  1. Antioxidants (Basel, Switzerland)

ETHYL ACETATE

  1. Molecules (Basel, Switzerland)

Echitamidine

  1. ISRN pharmacology

Estradiol-17-phenylpropionate

  1. BMC complementary medicine and therapies

Flavonoids

  1. BMC complementary and alternative medicine

Glycosides

  1. Current topics in medicinal chemistry

Activities

Alstonia boonei has 14 reported activities identified across 10 scientific publications and several other databases. The most consistently reported activities include Antioxidant, Antibacterial, Antimalarial, Antipyretic, Analgesic.

Activities reported in Alstonia boonei
Activity Supporting sources Consensus
Antioxidant 3 supporting sources ★★☆☆☆
Antibacterial 2 supporting sources ★☆☆☆☆
Antimalarial 2 supporting sources ★☆☆☆☆
Antipyretic 2 supporting sources ★☆☆☆☆
Analgesic 1 supporting sources ★☆☆☆☆
Antiarthritic 1 supporting sources ★☆☆☆☆
Anticancer 1 supporting sources ★☆☆☆☆
Antidiabetic 1 supporting sources ★☆☆☆☆
Antiinflammatory 1 supporting sources ★☆☆☆☆
Antimicrobial 1 supporting sources ★☆☆☆☆

Antioxidant

  1. Journal of medicinal food
  2. Current topics in medicinal chemistry
  3. Antioxidants (Basel, Switzerland)

Antibacterial

  1. Current topics in medicinal chemistry
  2. PloS one

Antimalarial

  1. ISRN pharmacology
  2. Current topics in medicinal chemistry

Antipyretic

  1. ISRN pharmacology
  2. Journal of ethnopharmacology

Analgesic

  1. Journal of ethnopharmacology

Antiarthritic

  1. Journal of ethnopharmacology

Anticancer

  1. Current topics in medicinal chemistry

Antidiabetic

  1. ISRN pharmacology

Antiinflammatory

  1. Journal of ethnopharmacology

Antimicrobial

  1. ISRN pharmacology

Medicinal Uses

Alstonia boonei has 29 reported medicinal uses identified across 10 scientific publications and several other databases. The most consistently reported uses include malaria, cancer, hypertension, inflammation, rheumatism.

Most Reported Uses

Use Sources Consensus
malaria Current topics in medicinal chemistry (and other 5 sources) ★★★☆☆
cancer Journal of ethnopharmacology (and other 2 sources) ★☆☆☆☆
hypertension Current topics in medicinal chemistry (and other 2 sources) ★☆☆☆☆
inflammation Current topics in medicinal chemistry (and other 2 sources) ★☆☆☆☆
rheumatism Current topics in medicinal chemistry (and other 2 sources) ★☆☆☆☆
Enterococcus faecium PloS one (and other 1 sources) ★☆☆☆☆
Ewing sarcoma Journal of ethnopharmacology (and other 1 sources) ★☆☆☆☆
Obesity BMC complementary medicine and therapies (and other 1 sources) ★☆☆☆☆
Salmonella paratyphi African journal of medicine and medical sciences (and other 1 sources) ★☆☆☆☆
Staphylococcus aureus PloS one (and other 1 sources) ★☆☆☆☆

Preparations

Preparations Sources Consensus
Ahun (Bark) Journal of ethnopharmacology (and other 1 sources) ★☆☆☆☆
Aqueous extracts from the stem-bark Journal of ethnopharmacology (and other 1 sources) ★☆☆☆☆
Ethanol-water (1:1) extracts Journal of ethnopharmacology (and other 1 sources) ★☆☆☆☆
Extracts Phytotherapy research : PTR (and other 1 sources) ★☆☆☆☆
Ghanaian antiarthritic herbal preparation Journal of ethnopharmacology (and other 1 sources) ★☆☆☆☆
Lime extracts of powdered combination of stem bark African health sciences (and other 1 sources) ★☆☆☆☆
Methanolic extracts Journal of medicinal food (and other 1 sources) ★☆☆☆☆
Stem back Molecules (Basel, Switzerland) (and other 1 sources) ★☆☆☆☆
boiling water extract Journal of ethnopharmacology (and other 1 sources) ★☆☆☆☆
extracts Frontiers in pharmacology (and other 1 sources) ★☆☆☆☆