Zanthoxylum gilletii


Guild: pi

Life form: large tree

Max. height: 35 m (Taylor 1960)

Max. diameter: 80 cm (Taylor 1960)

Leaf: alternate, imparipinnately compound, approx.

13 opposite or sub-opposite leaflets, oblong to elongate (5x14 cm), crenate

Inflorescence: branched (panicle)

Flower: data unavailable

Fruit: capsule, globose (0.5 cm in diameter), dark brown; 1 seed Seed: small, black

Other: a tree with large, compound leaves clustered at the end of stout twigs with many pyramidal prickles over the unbuttressed bole.


Continent: Upper Guinea endemic

Upper Guinea: Sierra Leone, Liberia, Côte d'Ivoire,


Forest type: evergreen forest, secondary forest (Taylor 1960)


It is a strong light demander (Taylor 1960).


Germination is rapid, and viability is short (Savill & Fox 1967). Seedlings are commonly seen in gaps, but absent from the shade of undisturbed understorey. Saplings are conspicuous emerging from climber tangles and other patches of low vegetation. They are obvious light demanders, and indicators of secondary forest. This species is one of several pioneer trees dominating at 15 years the

vegetation of large gaps following a wave of dominance by Musanga (Ross 1954). Jones (1974) categorises it as a "fast-growing pioneer".


Trees of 50 cm dbh have been recorded in 40 year old secondary forest, and 105 cm dbh trees in 29 year old forest, in Côte d'Ivoire (Kahn 1982).

Deciduousness: evergreen (Taylor 1960) Dispersal: probably by birds (Hall & Swaine 1981)

Timing: flowering period in June; fruiting period from June to July (Taylor 1960)

Data sources

Ross (1954), Taylor (1960), Savill & Fox (1967), Jones (1974), Hall & Swaine (1981), Kahn (1982), Hawthorne (1995a)


Mean Annual Rainfall

Soil CMK

Soil WHC


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Calvoa monticola A.Chev. ex Hutch. & Dalziel, Melastomataceae.

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