In plant morphology, thorns, spines, and prickles, and in general spinose structures (sometimes called spinose teeth or spinose apical processes), are hard, rigid extensions or modifications of leaves, roots, stems, or buds with sharp, stiff ends, and generally serve the same function: physically defending plants against herbivory.
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Dalbergia melanoxylon (African blackwood, grenadilla, or mpingo) in French Grenadille d'Afrique is a flowering plant in the subfamily Faboideae of the family Fabaceae, native to seasonally dry regions of Africa from Senegal east to Eritrea, to southern regions of Tanzania to Mozambique and south to the north-eastern parts of South Africa. The tree is an important timber species in its native areas; it is used in the manufacture of musical instruments, sculptures vinyago in Swahili language and fine furniture. Populations and genomic resources for genetic biodiversity maintenance in parts of its native range are threatened by overharvesting due to poor or absent conservation planning and by the species' low germination rates.
African blackwood is a small tree, reaching 4–15 m tall, with grey bark and spiny shoots. The leaves are deciduous in the dry season, alternate, 6–22 cm long, pinnately compound, with 6–9 alternately arranged leaflets. The flowers are white and produced in dense clusters. The fruit is a pod 3–7 cm long, containing one to two seeds. It is often cited as one of the most expensive woods in the world.
The durian (/ˈdʊəriən/ ) is the edible fruit of several tree species belonging to the genus Durio. There are 30 recognised species, at least nine of which produce edible fruit. Durio zibethinus, native to Borneo, Malay Peninsula and Sumatra, is the only species available on the international market. It has over 300 named varieties in Thailand and over 200 in Malaysia as of 2021. Other species are sold in their local regions.
Known in some regions as the "king of fruits", the durian is distinctive for its large size, strong odour, and thorn-covered rind. The fruit can grow as large as 30 cm (12 in) long and 15 cm (6 in) in diameter, and it typically weighs 1 to 3 kg (2 to 7 lb). Its shape ranges from oblong to round, the colour of its husk from green to brown, and its flesh from pale yellow to red, depending on the species. The flavour of the flesh is complex with savoury notes; the texture, creamy and pudding-like.