Croton megalocarpus is a deciduous tree with a dense, spreading, rather flat crown; it can grow up to 35 metres tall. The unbuttressed, cylindrical bole can be up. Croton tree: A year-old C. megalocarpus tree at a site in Bondo District, western. Kenya. The tree is approximately 12 m tall and 15 cm in diameter. Note the. CROTON MEGALOCARPUS*. DISTRIBUTION. Is a dominant upper canopy forest tree reaching heights of 40 m or more (Dale and Greenway ).
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Showing 0 of 0 comments. Croton megalocarpus 1, tree habit; 2, flowering twig; 3, seeds. Redrawn and adapted by Achmad Satiri Nurhaman.
Croton megalocarpus Croton megaloczrpus x – 20k – jpg en. Croton megalocarpus Potential Uses: Croton megalocarpus Croton tiglium x – 17k – jpg plantsource. Croton megalocarpus Caroline Wairimu, group secretary, Croton megalocarpus Croton eluteria x – 26k – jpg de.
Flora of Zimbabwe: Species information: individual images: Croton megalocarpus
Croton megalocarpus Croton megalocarpus, x – k – jpg ftc. Croton megalocarpus simply drops Croton megalocarpus Seedpods on a Mealocarpus megalocarpus Croton megalocarpus Croton megalocarpus. Croton megalocarpus Latin name: It is suitable for joinery, interior trim, ship building, vehicle bodies, furniture, cabinet work, railway sleepers and agricultural implements.
It is also used as firewood and for charcoal production. A maceration or decoction of the bark is taken as a vermifuge, corton to treat whooping cough, pneumonia, stomach-ache, fever including malaria, and abdominal complaints associated with gall bladder and spleen problems. Sap from leaves and young twigs are applied to wounds.
Land Resource Management & Agricultural Technology
An infusion of the powdered bark with potash is given to goats as a conditioner. Although trees are usually not browsed by livestock, leafy twigs may serve as forage for goats. Seeds are used as poultry feed.
Seed oil is tested as bio-fuel. The seeds can be used to dye wool yellowish. The flowers provide nectar for honey bees; the honey produced is dark and has a strong flavour. Croton megalocarpus is planted in hedges, live fences, shelterbelts and windbreaks, and as an ornamental shade tree. It may serve as shade tree for coffee plantations. The foliage provides good mulch. The fruit shells corton used as mulch in vegetable gardens and as a component of potting mixtures.
There are no trade statistics for Croton megalocarpus timber, which is only used locally. However, it has been used for flooring in the United Kingdom. In recent megalocarpux, Croton megalocarpus has gained interest for large-scale planting programmes as a commercial poultry feed and bio-fuel crop with low agro-ecological demands, mainly in Kenya and Tanzania. Most of the plantations are still in the pilot stage of development. The heartwood is yellowish white to brownish grey, often with irregular dark brown streaks, and not distinctly demarcated from the 2.
The grain is usually straight, texture medium. Freshly sawn wood has an unpleasant smell. It is liable to splitting and moderate distortion during air drying. Once dry, it is often not stable in service, especially when used in larger sizes. The wood is easy to saw and work with hand tools, but moderately difficult to machine. It usually planes to a smooth and lustrous surface.
It is resistant to abrasion. The nailing, screwing, gluing, varnishing, painting and jointing properties are all satisfactory. The wood is only suitable for sliced veneer. It is moderately durable, being slightly susceptible to termite, dry-wood borer and marine borer attacks. It is liable to attacks by blue stain fungi. It is easy to impregnate with preservatives under pressure. Dry megaolcarpus may irritate nose and throat in wood workers.
It has been reported that smoke from the wood irritates the eyes. The oil has purgative activity and also showed Epstein-Barr virus activating potency. Bark extracts showed weak antibacterial activity in in-vitro tests. Ground seeds showed good results in preliminary tests mevalocarpus chicken feed with no adverse effects on production and hatchability of eggs. As an oil producer for bio-fuel, Croton megalocarpus is comparable to jatropha Jatropha curcas L. Medium-sized to fairly large tree up to 35 m tall; bole cylindrical, branchless for up to 20 m, up to — cm in diameter; bark surface densely longitudinally fissured, rough, cracking, pale grey-brown, inner bark yellowish or pale brown; crown spreading, flat, with branches in layers; twigs densely scaly.
Leaves alternate, simple and entire; stipules linear-filiform, 0.
Inflorescence a terminal pendulous raceme up to 30 cm long, densely scaly, completely male or with a few female flowers at base. Flowers unisexual, regular, 5-merous, yellowish; pedicel 0.
Fruit an ellipsoid-ovoid to globose capsule 2. Seeds ellipsoid-ovoid to oblong-ellipsoid, flattened, 2—2.
Croton comprises about species and occurs throughout the warmer parts of the world. It is best represented in the Americas; about 65 species occur in continental Africa and about in Madagascar. The wood of several other Croton species is used in tropical Africa, but none of them is important. In Ghana the wood of Croton penduliflorus Hutch. In Gabon the whitish wood of Croton wellensii De Wild. In Kenya the wood of Croton dichogamus Pax, a shrub or small tree up to 7.
The roots and stems are used to flavour food and drinks. Roots and sometimes leaves are used in traditional medicine to treat colds, fever, tuberculosis and syphilis, and as a crotin.
The bark and seeds have some reputation as a treatment for malaria, whereas roots and bark are used as purgative and to treat ascites and female sterility. Leaves are used to treat body pain and seeds as vermifuge. Wood-anatomical description IAWA hardwood codes: Croton megalocarpus grows rapidly when conditions are favourable. In Kenya seedlings reached 1.
Croton megalocarpus – Useful Tropical Plants
In Burundi planted trees reached on average only 3. Trees may already start flowering when they are 4 megalocafpus old.
The flowers are short-lived. They are pollinated by insects such as bees. Fruits take about 5 months to ripen after flowering. The seeds megalocarpud eaten by birds including poultry. Croton megalocarpus occurs in evergreen and semi-deciduous forest at — — — m altitude, sometimes also in riverine woodland and wooded grassland.
It prefers light, deep and well-drained soils.
Natural regeneration is often prolific, Croton megalocarpus being a pioneer of large forest gaps and forest margins. It has been reported to become invasive under favourable climatic conditions. It is usually propagated by sowing, either directly into the field or in pots. There are — seeds per kg. Mature fruits can be collected from the ground. Traditionally farmers prepare 8 cm deep furrows where they drop ripe fruits 15—20 cm apart. When seedlings are raised in seed beds, they should be lightly shaded and initially watered twice a day.
Croton megalocarpus is sometimes propagated by wildlings and stump planting is also practised. Croton megalocarpus is locally dominant in secondary natural forest and it is commonly planted. It is also retained after forest clearing as a shade tree for crops such as coffee and sugar cane, but it may provide too much shade for maize cultivation.
The tree can be managed by lopping, pollarding and coppicing. When planted in hedges, plants should be pruned for the first time after 2 years. Croton megalocarpus trees develop a deep taproot. This makes them quite drought tolerant and allows food crops to be grown underneath. Fruits are most commonly collected from the ground underneath the trees and seeds are separated manually.
Simple tools in the form of a tin with a notch have been developed. However, many fruits collected from the ground do not contain viable seeds. Plant parts used for medicinal purposes are harvested throughout the year when the need arises. They can be used immediately or are dried and stored for later use. Preliminary observations indicate that a yield of 25—30 kg of seed per tree per year is realistic.
The presscake remaining after oil extraction can be incorporated in high-calorie and high-protein supplements in chicken feed, and also as bio-fuel and as organic fertilizer.