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This genus is accepted, and its native range is NE. Tropical to S. Africa, Arabian Peninsula.
Catha edulis

[FTEA]

Celastraceae, N.K.B. Robson, N. Hallé, B. Mathew and R. Blakelock†. Flora of Tropical East Africa. 1994

Morphology General Habit
Trees or shrubs, without latex, glabrous
Morphology Leaves
Leaves opposite on flowering shoots, alternate on vegetative ones, petiolate; stipules triangular-acicular, free or ± united interpetiolarly, rapidly caducous
Morphology Reproductive morphology Inflorescences
Inflorescence pedunculate, cymose, regularly dichasial, simple, axillary; bracts persistent
Morphology Reproductive morphology Flowers
Flowers bisexual, pedicellate, with pedicels articulated at the base
Morphology Reproductive morphology Flowers Calyx
Sepals 5, equal, imbricate, united at the base
Morphology Reproductive morphology Flowers Corolla
Petals 5, white or greenish, imbricate in bud, spreading
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens (4–)5, with filaments united with base of disc; anthers sub-basifixed, introrse, persistent, with separate thecae dehiscing longitudinally
Morphology Reproductive morphology Flowers Disc
Disc intrastaminal, single, concave, thin, shallowly 5-lobed
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary superior, sessile, 3-locular (sometimes incompletely so), with 2 erect collateral ovules in each locule; styles 3, free; stigmas 3
Morphology Reproductive morphology Fruits
Fruit capsular, dehiscing loculicidally in 3 valves
Morphology Reproductive morphology Seeds
Seeds 1–3, exarillate, with a wing developed below the point of attachment, with endosperm.

[FZ]

Celastraceae, N. K. Robson. Flora Zambesiaca 2:2. 1966

Morphology General Habit
Trees or shrubs, without latex, glabrous.
Morphology Leaves
Leaves opposite on flowering shoots, alternate on vegetative ones, petiolate; stipules free or ± united interpetiolarly, rapidly caducous.
Morphology Reproductive morphology Inflorescences
Inflorescence pedunculate, cymose, regularly dichasial, simple, axillary; bracts persistent.
Morphology Reproductive morphology Flowers
Flowers bisexual, pedicellate.
Morphology Reproductive morphology Flowers Calyx
Sepals 5, imbricate, united at the base.
Morphology Reproductive morphology Flowers Corolla
Petals 5, white or greenish, imbricate in bud.
Morphology Reproductive morphology Flowers Disc
Disk intra-staminal, single, concave, thin, shallowly 5-lobed.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 5, with filaments united with base of disk; anthers basifixed, with separate thecae dehiscing longitudinally; pollen simple.
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary superior, sessile, 3-locular (sometimes incompletely so), with 2 erect collateral ovules per loculus; styles and stigmas 3, free.
Morphology Reproductive morphology Fruits
Fruit capsular, dehiscing loculicidally in 3 valves.
Morphology Reproductive morphology Seeds
Seeds 1–3, with a wing developed below the point of attachment.

[FSOM]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Tree or shrub, unarmed, without latex, glabrous
Morphology Leaves
Leaves opposite on flowering shoots, alternate on vegetative ones; stipules free or ± united
Morphology Reproductive morphology Flowers
Flowers bisexual, in pedunculate regularly dichasial simple axillary cymes
Morphology Reproductive morphology Flowers Calyx
Sepals 5, imbricate
Morphology Reproductive morphology Flowers Corolla
Petals 5, white or greenish, imbricate in bud
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens (4–)5; filaments slender, united with base of disk; anthers introrse, dehiscing longitudinally
Morphology Reproductive morphology Flowers Disc
Disk intrastaminal, single, concave, thin, shallowly 5-lobed
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary sessile, free, 3-celled, with 2 erect ovules in each cell; styles 3, free; stigmas 3
Morphology Reproductive morphology Fruits
Fruit a capsule, elongate, dehiscing loculicidally
Morphology Reproductive morphology Seeds
Seeds 1–3, without arils, with a wing developed below the point of attachment, with endosperm.
Distribution
A single species, widespread in eastern tropical Africa.
Note
The genus Lydenburgia N. Robson, with the single species L. cassinoides N. Robson in South Africa (Transvaal), has sometimes been included in Catha (as C. cassinoides (N. Robson) Codd).

Native to:

Angola, Cape Provinces, Eritrea, Ethiopia, Kenya, KwaZulu-Natal, Malawi, Mozambique, Northern Provinces, Sudan, Swaziland, Tanzania, Uganda, Zambia, Zaïre, Zimbabwe

Introduced into:

Hawaii, Somalia, Yemen

Catha Forssk. ex Scop. appears in other Kew resources:

First published in Intr. Hist. Nat.: 228 (1777)

Accepted by

  • Govaerts, R. (1999). World Checklist of Seed Plants 3(1, 2a & 2b): 1-1532. MIM, Deurne.

Literature

Flora Zambesiaca

  • Introd. Hist. Nat. Sist.: 228 (1777).

Flora of Somalia

  • Flora Somalia, Vol 2, (1999) Author: by Sebsebe Demissew [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • Introd. Hist. Nat. Sist.: 228 (1777)

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Somalia
Flora of Somalia
http://creativecommons.org/licenses/by-nc-sa/3.0

Flora of Tropical East Africa
Flora of Tropical East Africa
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0