qat
Catha edulis · Accepted scientific name
Scientific literature: Very Extensive (359 studies) · ★★★★★
Qat, scientifically known as Catha edulis, is a flowering shrub native to the Horn of Africa and the Arabian Peninsula. Renowned for its stimulant properties, its leaves are chewed to release cathinone. While culturally significant in many regions, its use is strictly regulated due to its psychoactive effects.
- Family
- Celastraceae
- Native range
- Africa
- Parts used
- Leaf
- Common names
- Not available
- Scientific synonyms
- Catha Inermis · Dillonia Abyssinica · 6 more
Names and Synonyms
Scientific Names
Accepted name
Catha edulisSynonyms
- Catha inermis
- Dillonia abyssinica
- Celastrus tsaad
- Celastrus edulis
- Methyscophyllum glaucum
- Trigonotheca serrata
- Hartogia thea
- Catha glauca
Regional and Traditional Names
Spanish:
- Tschat
- Khat
- Miraa
- Qat
German:
- Kathstrauch
- Khatstrauch
- Qat
- Miraa
- Abessinischer Tee
- Khat
- Qad
- Mirra
French:
- Khat
- Cath
- Celastrus edulis
- Qat
- Kath
- Katy
Sources: Wikidata, Catalogue of Life
Taxonomical Classification
This plant, Catha edulis, belongs to the kingdom Plantae and the phylum Streptophyta. Within the class Equisetopsida and subclass Magnoliidae, it is classified under the order Celastrales and the family Celastraceae. Its taxonomic lineage concludes with the genus Catha.
| Rank | Classification |
|---|---|
| Kingdom | Plantae |
| Phylum | Streptophyta |
| Class | Equisetopsida |
| Subclass | Magnoliidae |
| Order | Celastrales |
| Family | Celastraceae |
| Genus | Catha |
Sources: The World Checklist of Vascular Plants (WCVP)
Distribution
This plant exhibits a widespread distribution across several key regions of the African continent. In West-Central Tropical Africa, it is notably found within the Democratic Republic of the Congo. Moving toward the Horn of Africa, its presence is established in the Northeast Tropical regions of Eritrea and Ethiopia. The species also extends into the coastal areas of Somalia. Finally, its geographical range encompasses the territories of both Sudan and South Sudan.
| Region | Area |
|---|---|
| West-Central Tropical Africa | DR Congo |
| Northeast Tropical Africa | Eritrea |
| Northeast Tropical Africa | Ethiopia |
| Northeast Tropical Africa | Somalia |
| Northeast Tropical Africa | Sudan-South Sudan |
| East Tropical Africa | Kenya |
| East Tropical Africa | Tanzania |
| East Tropical Africa | Uganda |
| South Tropical Africa | Angola |
| South Tropical Africa | Malawi |
Sources: The World Checklist of Vascular Plants (WCVP)
Botanical Identification
Ecology
The ecology of Catha edulis is characterized by a broad vertical distribution across diverse montane and sub-montane landscapes. This species thrives across a significant altitudinal gradient, occupying habitats ranging from low-lying areas at a minimum elevation of 350 m AMSL to high-altitude environments reaching a maximum of 3200 m AMSL. Throughout its natural range, the plant maintains a mean elevation of approximately 2050 m AMSL, suggesting a strong ecological preference for mid-to-high altitude zones where specific temperature and moisture regimes are prevalent.
- Elevational range max:
- 3200 m AMSL
- Elevational range mean:
- 2050 m AMSL
- Elevational range min:
- 350 m AMSL
Life history
The life history of Catha edulis is characterized by its status as a perennial species, allowing the plant to persist in its environment over multiple growing seasons. Its physiological rhythm is marked by its deciduous nature, meaning it undergoes seasonal shedding of its foliage.
- Deciduousness :
- deciduous
- Lifecycle :
- perennial
Morphology
The morphology of Catha edulis is characterized by a woody growth form that can manifest as both a tree and a shrub. As a terrestrial species, it is neither aquatic nor an epiphyte, functioning as an independent organism rather than a parasite. The plant exhibits significant variation in stature, with a minimum height of 0.1 m and a maximum height reaching up to 11 m, resulting in an average plant height of approximately 11 m. Furthermore, the plant is categorized as self-supporting rather than a climber.
- Aquatic :
- terrestrial
- Climber :
- self-supporting
- Epiphyte :
- terrestrial
- Growth form :
- tree
- Growth form :
- shrub
- Parasite :
- independent
- Plant height mean:
- 11 m
- Plant height min:
- 0.1 m
- Woodiness :
- woody
Physiology
The physiology of Catha edulis is characterized by a C3 photosynthetic pathway, indicating a metabolic process that utilizes the Calvin cycle for carbon fixation without the specialized adaptations found in C4 or CAM plants. The morphological dimensions of its foliage play a significant role in its physiological efficiency, with leaves typically exhibiting a mean length of 9.5 cm and a range spanning from a minimum of 7 cm to a maximum of 12 cm. The leaf width shows similar variability, maintaining a mean of 3 cm with values ranging from a minimum of 2 cm to a maximum of 4 cm. Furthermore, the plant does not function as a nitrogen fixer, meaning it lacks the symbiotic relationship with nitrogen-fixing bacteria required to convert atmospheric nitrogen into a usable form, relying instead on the availability of nitrogen within the soil substrate for its nutritional requirements.
- Leaf length max:
- 12 cm
- Leaf length mean:
- 9.5 cm
- Leaf length min:
- 7 cm
- Leaf width max:
- 4 cm
- Leaf width mean:
- 3 cm
- Leaf width min:
- 2 cm
- Nitrogen fixer :
- no
- Photosynthetic pathway :
- C3
Reproduction
The reproduction of Catha edulis is characterized by the production of small, delicate flowers and highly uniform seed structures. The flowers exhibit a modest size, with lengths typically ranging from a minimum of 0.2 cm to a maximum of 0.3 cm. Following successful pollination, the plant produces seeds that demonstrate remarkable consistency in weight; the seed mass is measured at a constant 0.00168 g, with no variation observed between the minimum, mean, and maximum recorded values. This high degree of uniformity in seed mass suggests a very stable reproductive output regarding the energetic investment per seed.
- Flower length max:
- 0.3 cm
- Flower length min:
- 0.2 cm
- Seed mass mean:
- 0.00168 g
Sources: Global Inventory of Floras and Traits (GIFT)
Plant Parts
Catha edulis has 1 reported plant parts identified across 1 scientific publications and several other databases that are studied for medicinal purposes. The most consistently reported plant part include leaf.
| Plant part | Supporting sources | Consensus |
|---|---|---|
| Leaf | 1 supporting sources | ★☆☆☆☆ |
Leaf
- Journal of ethnopharmacology
Chemicals
Catha edulis has 39 reported phytochemicals identified across 1 scientific publications and several other databases. The most consistently reported chemicals include Cathine, Cathinone, (+)-Cathine, (-)-Cathinone, (-)-Norephedrine.
| Chemical | Supporting sources | Consensus |
|---|---|---|
| Cathine | 3 supporting sources | ★★☆☆☆ |
| Cathinone | 3 supporting sources | ★★☆☆☆ |
| (+)-Cathine | 1 supporting sources | ★☆☆☆☆ |
| (-)-Cathinone | 1 supporting sources | ★☆☆☆☆ |
| (-)-Norephedrine | 1 supporting sources | ★☆☆☆☆ |
| 1-PHENYL-1,2-PROPANEDIONE | 1 supporting sources | ★☆☆☆☆ |
| 2,4-dimethyl-5-phenyloxazolidine | 1 supporting sources | ★☆☆☆☆ |
| 4-methyl-2-(trans-1-pentenyl)-5-phenyloxazolidine | 1 supporting sources | ★☆☆☆☆ |
| 8-Hydroxydeoxyguanosine | 1 supporting sources | ★☆☆☆☆ |
| Ash | 1 supporting sources | ★☆☆☆☆ |
Cathine
- Dr. Duke
- Journal of ethnopharmacology
- Medecine tropicale : revue du Corps de sante colonial
Cathinone
- Journal of ethnopharmacology
- Medecine tropicale : revue du Corps de sante colonial
- The American journal of Chinese medicine
(+)-Cathine
- Journal of ethnopharmacology
(-)-Cathinone
- Journal of ethnopharmacology
(-)-Norephedrine
- Journal of ethnopharmacology
1-PHENYL-1,2-PROPANEDIONE
- Journal of ethnopharmacology
2,4-dimethyl-5-phenyloxazolidine
- Planta medica
4-methyl-2-(trans-1-pentenyl)-5-phenyloxazolidine
- Planta medica
8-Hydroxydeoxyguanosine
- Chemico-biological interactions
Ash
- Dr. Duke
Activities
Catha edulis has 280 reported activities identified across 1 scientific publications and several other databases. The most consistently reported activities include Stimulant, Antidepressant, Hepatotoxic, Acidulant, Adrenergic.
| Activity | Supporting sources | Consensus |
|---|---|---|
| Stimulant | 3 supporting sources | ★★☆☆☆ |
| Antidepressant | 2 supporting sources | ★☆☆☆☆ |
| Hepatotoxic | 2 supporting sources | ★☆☆☆☆ |
| Acidulant | 1 supporting sources | ★☆☆☆☆ |
| Adrenergic | 1 supporting sources | ★☆☆☆☆ |
| Aldose-Reductase-Inhibitor | 1 supporting sources | ★☆☆☆☆ |
| Allergenic | 1 supporting sources | ★☆☆☆☆ |
| Analgesic | 1 supporting sources | ★☆☆☆☆ |
| Androgenic? | 1 supporting sources | ★☆☆☆☆ |
| Anesthetic | 1 supporting sources | ★☆☆☆☆ |
Stimulant
- Dr. Duke
- Journal of pharmaceutical and biomedical analysis
- Journal of ethnopharmacology
Antidepressant
- Dr. Duke
- CNS & neurological disorders drug targets
Hepatotoxic
- Dr. Duke
- International journal of molecular sciences
Acidulant
- Dr. Duke
Adrenergic
- Dr. Duke
Aldose-Reductase-Inhibitor
- Dr. Duke
Allergenic
- Dr. Duke
Analgesic
- Dr. Duke
Androgenic?
- Dr. Duke
Anesthetic
- Dr. Duke
Medicinal Uses
Catha edulis has 17 reported medicinal uses identified across 1 scientific publications and several other databases. The most consistently reported uses include Parkinson's disease, anemia, anorectic, anorexia, appetite suppressants.
Most Reported Uses
| Use | Sources | Consensus |
|---|---|---|
| Parkinson's disease | Journal of ethnopharmacology (and other 1 sources) | ★☆☆☆☆ |
| anemia | Frontiers in global women's health (and other 1 sources) | ★☆☆☆☆ |
| anorectic | Planta medica (and other 1 sources) | ★☆☆☆☆ |
| anorexia | The American journal of Chinese medicine (and other 1 sources) | ★☆☆☆☆ |
| appetite suppressants | PloS one (and other 1 sources) | ★☆☆☆☆ |
| body weight | Pharmacology, biochemistry, and behavior (and other 1 sources) | ★☆☆☆☆ |
| cancer | Frontiers in global women's health (and other 1 sources) | ★☆☆☆☆ |
| cell death | Journal of ethnopharmacology (and other 1 sources) | ★☆☆☆☆ |
| decongestants | PloS one (and other 1 sources) | ★☆☆☆☆ |
| depression | CNS & neurological disorders drug targets (and other 1 sources) | ★☆☆☆☆ |
Preparations
| Preparations | Sources | Consensus |
|---|---|---|
| crude acetone extracts | Journal of ethnopharmacology (and other 1 sources) | ★☆☆☆☆ |